identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
4CFC1B931DE551128F64096BE30D7AA0.text	4CFC1B931DE551128F64096BE30D7AA0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pachymerium C. L. Koch 1847	<div><p>Genus Pachymerium C. L. Koch, 1847</p><p>Type species.</p><p>Geophilus ferrugineum C. L. Koch, 1835 by monotypy.</p><p>Diagnosis.</p><p>See Popovici (2024).</p></div>	https://treatment.plazi.org/id/4CFC1B931DE551128F64096BE30D7AA0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yu, Yifei;Xiong, Yuan;You, Chunxue;Jiang, Chao	Yu, Yifei, Xiong, Yuan, You, Chunxue, Jiang, Chao (2026): Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae). ZooKeys 1281: 265-289, DOI: 10.3897/zookeys.1281.182253
4E81113C1E105518B41F60CEDB0AA6ED.text	4E81113C1E105518B41F60CEDB0AA6ED.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pachymerium dimorphum Yu & Xiong & You & Jiang 2026	<div><p>Pachymerium dimorphum sp. nov.</p><p>Figs 1 B, 2 B, 4</p><p>Type material examined.</p><p>Holotype. China • ♂ (CMMI 20240712002 D), Xizang Autonomous Region, Lang County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=93.133&amp;materialsCitation.latitude=29.142" title="Search Plazi for locations around (long 93.133/lat 29.142)">Gagonggou</a> (29.1420°N, 93.1330°E), 3090 m a. s. l., 12. vii. 2024, leg. Chao Jiang &amp; Qing Li . Paratypes. China • 1 ♀ (CMMI 20240712003 D), same as holotype; 1 ♀ (CMMI 20240727001 D), Xizang Autonomous Region, Nimu County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=90.173&amp;materialsCitation.latitude=29.348" title="Search Plazi for locations around (long 90.173/lat 29.348)">Nimu Township, G 318 Highway</a> (29.3480°N, 90.1730°E), 3700 m a. s. l., 27. vii. 2024, leg. Chao Jiang ; • 7 ♂♂ 6 ♀♀ (CMMI 20240716088 D – 091 D, - 093 D – 097 D, - 099 D – 102 D), Qusong County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=92.097&amp;materialsCitation.latitude=28.786" title="Search Plazi for locations around (long 92.097/lat 28.786)">Qiuduojiang Township, S 202 Highway</a> (28.7860°N, 92.0970°E), 4460 m a. s. l., 16. vii. 2024, leg. Chao Jiang &amp; Qing Li .</p><p>Other material.</p><p>China • 1 ♂ 2 ♀♀ (CMMI 20240717010 D), Xizang Autonomous Region, Cuomei County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=91.433&amp;materialsCitation.latitude=28.443" title="Search Plazi for locations around (long 91.433/lat 28.443)">Near Cuomei County Hall</a>, (28.4430°N, 91.4330°E), 4110 m a. s. l., 17. vii. 2024, leg. Chao Jiang &amp; Qing Li ; • 3 ♂♂ 6 ♀♀ (CMMI 20230730004 D – 005 D), Cuomei County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=91.216&amp;materialsCitation.latitude=28.2562" title="Search Plazi for locations around (long 91.216/lat 28.2562)">Naixi Township, G 219 Highway</a> (28.2562°N, 91.2160°E), 4340 m a. s. l., 30. vii. 2023, leg. Chao Jiang .</p><p>Diagnosis.</p><p>Body length reaching at least 22 mm; number of leg-bearing segments 47–49 (♂), 49–51 (♀); clypeus with two distinct and internally non-areolate clypeal areas and two poorly defined, pigmented areas close to posterior margin (Fig. 2 B); labral mid-piece with eight stout denticles, with ~ 10–13 bristles on lateral parts; coxosternite of forcipular segment with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.9 × as long as the coxosternite; coxopleuron with 10–12 (♂), 31–37 (♀) coxal pores in adults, opening independently on ventral and dorsal sides of coxopleuron.</p><p>Description of holotype (adult male).</p><p>Body 22 mm long; with 49 leg-bearing segments; body tapering distally. Color (in ethanol 75 %) pale orange; forcipules darker.</p><p>Cephalic capsule (Fig. 4 A, C, D) subrectangular; ~ 1.5 × longer than wide, anterior margin convex; areolation uniform on the entire surface; with an indistinct transverse suture. Clypeus with two distinct and internally non-areolate clypeal areas and two poorly defined, pigmented areas close to posterior margin. Clypeal setae: one pair anterior, five pairs intermediate (1 pair within clypeal areas) and one pair posterior. Labral mid-piece wider than long, with eight stout denticles; each side-piece entire, with ~ 10–13 bristles on lateral parts.</p><p>Antennae (Fig. 4 B) almost uniform in width; ~ 1.3 × as long as the length of the head. Basal articles only slightly more elongated (article II ~ 1.2 × as long as wide); distal articles stouter (article XIII ~ 0.9 × as long as wide); article XIV ~ 1.9 × as long as wide. Setae gradually denser and shorter from the basal articles to the distal ones. Articles I – VII with distinctly three whorled long setae along with numerous short setae; remaining articles equipped with uniform setae.</p><p>Mandible (Fig. 4 E) with a single pectinate lamella with ~ 16 hyaline teeth.</p><p>First maxillae (Fig. 4 F). Coxosternite entire; uniformly areolate; with pair of evident lateral lappets; 4 + 4 setae close to the anterior margin. Coxal projection subtriangular; longer than wide; ventral side with 5 + 6 setae on distal half; dorsal surface with numerous small sensilla on distal half. Telopodite with two articles, telopodite as long as the coxal projection; distinctly articulated; one evident external lappet on each article; ventral side with 3 + 5 setae on distal half; dorsal surface with numerous small sensilla on distal half.</p><p>Second maxillae (Fig. 4 F). Coxosternite entire; uniformly areolate; anterior margin deeply concave; 10 + 8 setae scattered on the coxosternite; metameric pores opening close to posterior margin. Telopodite composed of three articles; gradually narrowing toward the tip; pretarsus of telopodite pointed, almost straight and gradually tapering on the telopodite.</p><p>Forcipular segment (Fig. 4 G) Tergite subtrapezoid; ~ 2.2 × as wide as long. Coxosternite ~ 1.1 × as wide as long on exposed part; anterior margin moderately projecting with respect to its condyles; anterior border with shallow medial concavity; with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.9 × as long as the coxosternite. Trochanteroprefemur ~ 1.6 × as long as wide. Forcipular articles from trochanteroprefemur to tarsungulum with 1, 0, 0, and 1 denticle, respectively; basal denticle of the tarsungulum is subtriangular. Tarsungulum ~ 2.4 × as long as wide. Basal denticle of tarsungulum with distal margin distinctly convex and ~ 0.2 × as long as the basal breadth of the tarsungulum. Calyx of venom gland short, ~ 1.2 × as long as wide, situated in femur.</p><p>Leg-bearing segments (Fig. 4 H, I). Tergites of leg-bearing segments with two paramedian sulci, becoming faint or obsolete on posterior segments. Metasternites subrectangular; without a mid-longitudinal sulcus. Ventral pores begin on leg-bearing segment 1 as a transverse group (~ 10 pores) close to posterior margin plus two paired pore-fields (~ 5 + 6 pores) close to anterior margin; on segment 11 the transverse group replaced by two paired pore-fields (~ 9 + 11 pores); absent from segments posterior to it and including segment 23. Leg pair 1 smaller than the others; pretarsus claw-like, reaching ~ 1 / 4 of the length of the tarsus.</p><p>Ultimate leg-bearing segment (Fig. 4 J, K). Pretergite ~ 4.3 × as wide as long on exposed part. Metatergite ~ 1.2 × as wide as long, subtrapezoid. Metasternite ~ 1.2 × as wide as long; posterior margin ~ 0.4 × as wide as anterior margin; with dense setae. Coxopleuron with 10–12 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron; setae on the coxopleuron distinctly denser close to the ventral posterior edge. Ultimate leg with dense setae on ventral and lateral sides. Ultimate pretarsus claw-like; ~ 0.3 × as long as tarsus. Ultimate legs swollen with scattered setae; dense short setae on ventral sides.</p><p>Postpedal segments (Fig. 4 J). Intermediate sternite distinct and exposed; first genital sternite separated from pleurites by distinct sutures; gonopods biarticulate, with setae; penis conical; anal pores indistinct.</p><p>Differences in paratype (adult female).</p><p>Body 26–32 mm long; with 49–51 leg-bearing segments.</p><p>Ultimate leg-bearing segment (Fig. 4 L, M). Coxopleuron with 31–37 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron. Ultimate legs slender, with scattered setae; a few setae on ventral sides.</p><p>Postpedal segments (Fig. 4 L). Intermediate sternite distinct and exposed; first genital pleurosternite ~ 2.1 × as wide as long, posterior margin slightly concave, uniformly with sparse setae; gonopodal lamina not distinctly bilobate, with sparse setae; anal pores present.</p><p>Differences in paratype (adult male).</p><p>Body 23–27 mm long; with 45–49 leg-bearing segments.</p><p>Etymology.</p><p>di-: a prefix meaning “two”, “double”, or “having two”. - morphus: a suffix meaning “form”, “shape” or “structure”, this term signifies that males and females of the species differ in the number of coxal pores. We suggest the Chinese common name as “异型地蜈蚣”.</p><p>Remarks.</p><p>This new species exhibits significant sexual dimorphism in the number of coxal pores, with females possessing a substantially greater count than males based on the available specimens. Given that coxal pore number may scale allometrically with body size and typically increases with age within a species, and considering that all observed females were larger than the males, it cannot be ruled out that the observed sexual dimorphism in pore count may be influenced by the younger age and smaller body size of the available male specimens. It resembles Pachymerium ferrugineum (C. L. Koch, 1835) in having the same number of clypeal areas (Attems 1929: fig. 205; Bonato et al. 2004: fig. 12) and two paired, poorly defined, pigmented areas close to posterior margin (Fig. 2 B). However, it differs from P. ferrugineum in the number of clypeal setae, arrangement of the ventral pore-fields and morphology of the first maxillae. Specifically, P. dimorphum sp. nov. possesses seven pairs of clypeal setae (14 setae total), contrasting with the usual five pairs (10 setae total) in P. ferrugineum . The telopodite of the first maxillae is much longer than the coxal projection in P. ferrugineum (Popovici 2024: fig. 1 D), whereas in the new species, it is only slightly longer, being nearly equal in length.</p><p>Distribution.</p><p>China (Xizang Autonomous Region).</p></div>	https://treatment.plazi.org/id/4E81113C1E105518B41F60CEDB0AA6ED	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yu, Yifei;Xiong, Yuan;You, Chunxue;Jiang, Chao	Yu, Yifei, Xiong, Yuan, You, Chunxue, Jiang, Chao (2026): Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae). ZooKeys 1281: 265-289, DOI: 10.3897/zookeys.1281.182253
86E4CB6CA8AC52EC8EB390AEEF1AC7CE.text	86E4CB6CA8AC52EC8EB390AEEF1AC7CE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pachymerium ferrugineum (C. L. Koch 1835)	<div><p>Pachymerium ferrugineum (C. L. Koch, 1835)</p><p>Figs 1 A, 2 A, 3</p><p>Geophilus ferrugineum C. L. Koch, 1835: 2 .</p><p>Geophilus angustiventris Kessler, 1874: 44; Sseliwanoff, 1884: 78–80.</p><p>Geophilus caucasicus Attems, 1903: 256–257 .</p><p>Geophilus felix Attems, 1947: 57, figs 24–26.</p><p>Geophilus kervillei Attems, 1908: 109; Attems 1929: 245.</p><p>Geophilus paradoxus Tömösváry, 1880: 619 .</p><p>Arthronomalus puncticeps Lucas, 1849: 389 .</p><p>Mecistocephalus punctilabium Newport, 1843: 179 .</p><p>Pachymerium antipai Căpușe, 1968: 716; Popovici 2024: 590.</p><p>Pachymerium ferrugineum: Attems 1929: 245 –246, fig. 205; Takakuwa and Takashima 1949: 58; Wang 1956: 158; Bonato et al. 2004: 25, figs 4, 12, 14; Dyachkov 2018: 253, 2022: 71; Popovici 2024: 590, 594, figs 1 (A, B, D), 2; Bonato and Minelli 2014: 51.</p><p>Pachymerium ferrugineum helveticum Verhoeff, 1902: 559 .</p><p>Pachymerium ferrugineum insulanum Verhoeff, 1902: 558 .</p><p>Material examined.</p><p>670 specimens examined in this study are listed in Suppl. material 1.</p><p>Diagnosis.</p><p>Body length up to 60 mm; number of leg-bearing segments 39–63 (data on body length and number of leg-bearing segments compiled from Popovici 2024); clypeus with two clypeal areas and two poorly defined, pigmented areas close to posterior margin (Figs 2 A, 3 A). Labral mid-piece with 5–10 stout denticles; each side-piece entire, with ~ 15 bristles on lateral parts. Coxosternite of forcipular segment with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.6 × as long as the coxosternite. Coxopleuron with ~ 30 coxal pores in adults, opening independently on ventral and dorsal sides of coxopleuron.</p><p>Remarks.</p><p>This species exhibits a broad distribution across the west Palearctic, often introduced throughout the world (Bonato et al. 2011). Most recent publications concerning this species primarily update its distribution records, and describe cases of teratology (Bonato et al. 2004; Dyachkov 2018, 2022; Popovici 2024). Records show that this species transcends conventional habitat boundaries, with confirmed records from coastal regions through xeric shrublands to frigid alpine zones. In this study, female specimens of Pachymerium ferrugineum significantly outnumbered males across all samples. Given that all collected specimens were confirmed as conspecific (i. e., P. ferrugineum), the observed sex ratio bias is unlikely to result from species misidentification. Temporal analysis revealed that the number of male individuals collected in March and July exceeded that in other months, suggesting a possible link to the centipede’s reproductive cycle. Furthermore, male specimens were encountered more frequently in China’s Oriental region than in the Palearctic region. In addition, specimens from the Oriental region exhibited smaller maximum body length compared to those from the Palearctic region. Although sampling was conducted exclusively in vegetation-rich habitats, significant differences exist between the Oriental and Palearctic regions in terms of climate, humidity, and temperature fluctuations. Therefore, we hypothesize that the overall female-biased sex ratio and the observed morphological variations in this study may be associated with sampling months (and thus the reproductive cycle) as well as environmental conditions.</p><p>Distribution.</p><p>China (Gansu, Guangdong, Henan, Hubei, Hunan, Jiangxi, Jilin, Liaoning, Shaanxi, Shanghai, Shanxi, Sichuan, Taiwan and Yunnan provinces, Guangxi Zhuang Autonomous Region, Ningxia Hui Autonomous Region, Xinjiang Uygur Autonomous Region, Xizang Autonomous Region); all of Europe; Afghanistan; Algeria; Armenia; Azerbaijan; Cape Verde; Caucasus; Chile; Iraq; Japan; Kyrgyzstan; Mongolia; Morocco; North America; Tajikistan; Uzbekistan; Turkmenistan (Attems 1929; Takakuwa and Takashima 1949; Bonato et al. 2004; Dyachkov 2018, 2022; Popovici 2024).</p></div>	https://treatment.plazi.org/id/86E4CB6CA8AC52EC8EB390AEEF1AC7CE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yu, Yifei;Xiong, Yuan;You, Chunxue;Jiang, Chao	Yu, Yifei, Xiong, Yuan, You, Chunxue, Jiang, Chao (2026): Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae). ZooKeys 1281: 265-289, DOI: 10.3897/zookeys.1281.182253
12490B859FDE5B328283A95CD96E6F29.text	12490B859FDE5B328283A95CD96E6F29.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pachymerium lingshouense Yu & Xiong & You & Jiang 2026	<div><p>Pachymerium lingshouense sp. nov.</p><p>Figs 1 D, 2 D, 7</p><p>Type material examined.</p><p>Holotype. China • ♂ (CMMI 20230920007 D), Hebei Province, Lingshou, Wuyuezhai National Forest Park, 20. ix. 2023, leg. Huiqin Ma . Paratypes. China • 4 ♂♂ 5 ♀♀ (CMMI 20140921002 D, 20140927001 D – 005 D, 20230920009 D – 011 D), same locality as holotype, 20. ix. 2023, 21–27. ix. 2014, leg. Huiqin Ma .</p><p>Diagnosis.</p><p>Body length reaching at least 28 mm; number of leg-bearing segments 41–49; clypeus with two indistinct and internally areolate clypeal areas; lacking poorly defined, pigmented, weakly areolate areas close to posterior margin (Fig. 2 D); labral mid-piece with seven stout denticles, each side-piece entire, with ~ 25–27 bristles on lateral parts; coxosternite of forcipular segment with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.7 × as long as the coxosternite; coxopleuron with 18–23 (♂), 21–25 (♀) coxal pores in adults, opening independently on ventral and dorsal sides of coxopleuron.</p><p>Description of holotype (adult male).</p><p>Body 37 mm long; with 49 leg-bearing segments; body tapering distally. Color (in ethanol 75 %) pale orange; forcipules darker.</p><p>Cephalic capsule (Fig. 7 A, C, D) subrectangular; ~ 1.5 × longer than wide; anterior margin convex; areolation uniform on the entire surface; with an indistinct transverse suture. Clypeal areas indistinct and internally areolate; without poorly defined, pigmented, weakly areolate areas. Clypeal setae: one pair anterior, 4–5 pairs intermediate, one pair posterior. Labral mid-piece wider than long, with seven stout denticles; with ~ 25–27 bristles on lateral parts.</p><p>Antennae (Fig. 7 B) almost uniform in width; ~ 3.0 × as long as the length of the head. Basal articles only slightly more elongated (article II ~ 1.1 × as long as wide); distal articles stouter (article XIII ~ 1.0 × as long as wide); article XIV ~ 2.0 × as long as wide. Setae gradually denser and shorter from the basal articles to the distal ones. Articles I – XIII with two whorls of long, distinct setae along with numerous short setae; remaining articles equipped with uniform short setae.</p><p>Mandible (Fig. 7 E) with a single pectinate lamella with ~ 28 hyaline teeth.</p><p>First maxillae (Fig. 7 F). Coxosternite entire; uniformly areolate; with pair a of lateral lappets; 3 + 3 setae close to the anterior margin. Coxal projection subtriangular; longer than wide; ventral side with 6 + 7 setae on distal half; dorsal surface with numerous small sensilla on distal half. Telopodite with two articles, telopodite longer than coxal projection; distinctly articulated; one external lappet on each article; ventral side with 11 + 7 setae on distal half; dorsal surface with numerous small sensilla on distal half.</p><p>Second maxillae (Fig. 7 F). Coxosternite entire; uniformly areolate; anterior margin deeply concave; 6 + 8 setae on the middle part; metameric pores opening close to posterior margin. Telopodite composed of three articles; gradually narrowing towards the tip; pretarsus of telopodite pointed, almost straight and gradually tapering towards the tip.</p><p>Forcipular segment (Fig. 7 G). Tergite subtrapezoid; ~ 2.1 × as wide as long. Coxosternite ~ 1.2 × as wide as long on exposed part; anterior margin moderately projecting with respect to its condyles; anterior border with shallow medial concavity; with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.7 × as long as the coxosternite. Trochanteroprefemur ~ 1.9 × as long as wide. Forcipular articles from trochanteroprefemur to tarsungulum with 1, 0, 0, and 1 denticle, respectively; basal denticle of the tarsungulum is subtriangular. Tarsungulum ~ 2.5 × as long as wide. Basal denticle of tarsungulum with distal margin distinctly convex and ~ 0.3 × as long as the basal breadth of the tarsungulum. Calyx of venom gland short, ~ 1.2 × as long as wide, situated in femur.</p><p>Leg-bearing segments (Fig. 7 H, I). Tergites of leg-bearing segments with two paramedian sulci, becoming faint or obsolete on posterior segments. Metasternites subrectangular; without a mid-longitudinal sulcus. Ventral pores begin on leg-bearing segment 1 as a transverse group (~ 9 pores) close to posterior margin plus two paired pore-fields (~ 10 + 7 pores) close to anterior margin; on segment 4 the transverse group replaced by two paired pore-fields (~ 16 + 11 pores), with two paired pore-fields (~ 27 + 33 pores) close to anterior and middle regions; absent from segment 17 and posterior. Legs 1 smaller than the others; pretarsus claw-like, reaching ~ 1 / 4 of the length of the tarsus.</p><p>Ultimate leg-bearing segment (Fig. 7 J, K). Pretergite ~ 3.6 × as wide as long on exposed part. Metatergite ~ 1.1 × as wide as long, subtrapezoid. Metasternite ~ 1.1 × as wide as long; posterior margin ~ 0.4 × as wide as anterior margin; with dense setae. Coxopleuron with 19–22 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron; setae on the coxopleuron distinctly denser close to the ventral posterior edge. Ultimate leg with dense setae on ventral and lateral sides. Ultimate pretarsus claw-like; ~ 0.3 × as long as tarsus. Ultimate legs swollen, with scattered setae; dense short setae on ventral sides.</p><p>Postpedal segments (Fig. 7 J). Intermediate sternite distinct and exposed; first genital sternite separated from pleurites by distinct sutures; gonopods biarticulate, with setae; penis conical; anal pores indistinct.</p><p>Differences in paratype (adult female). Body 32–39 mm long; with 39–49 leg-bearing segments.</p><p>Ultimate leg-bearing segment (Fig. 7 L, M). Coxopleuron with 21–25 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron. Ultimate pretarsus claw-like; ~ 0.2 × as long as tarsus. Ultimate legs slender, with scattered setae; a few setae on ventral sides.</p><p>Postpedal segments (Fig. 7 L). Intermediate sternite distinct and exposed; first genital pleurosternite ~ 1.8 × as wide as long, posterior margin slightly concave, uniformly with sparse setae; gonopods lamina distinctly bilobate, with sparse setae; anal pores present.</p><p>Differences in paratype (adult male).</p><p>Body 28–35 mm long; with 45–49 leg-bearing segments.</p><p>Etymology.</p><p>The name refers to its type locality Lingshou county. We suggest the Chinese common name as “灵寿地蜈蚣”.</p><p>Remarks.</p><p>This species is also provisionally placed in the genus Pachymerium . Like Pachymerium multiseriale sp. nov., it resembles P. ferrugineum, but differs in possessing a narrow, subtriangular labrum and a clypeus with two indistinct, internally areolate clypeal areas, lacking the poorly defined, pigmented, weakly areolate areas near the posterior margin. It is distinguished from P. multiseriale by the absence of rows of dentate projections on the lateral parts of the labrum.</p><p>Distribution.</p><p>China (Hebei Province).</p></div>	https://treatment.plazi.org/id/12490B859FDE5B328283A95CD96E6F29	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yu, Yifei;Xiong, Yuan;You, Chunxue;Jiang, Chao	Yu, Yifei, Xiong, Yuan, You, Chunxue, Jiang, Chao (2026): Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae). ZooKeys 1281: 265-289, DOI: 10.3897/zookeys.1281.182253
AE0127CCB1E85E1986DFE8E4E2253DF8.text	AE0127CCB1E85E1986DFE8E4E2253DF8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pachymerium multiseriale Yu & Xiong & You & Jiang 2026	<div><p>Pachymerium multiseriale sp. nov.</p><p>Figs 1 E, 2 E, 6</p><p>Type material examined.</p><p>Holotype. China • ♂ (CMMI 20230920022 D), Qinghai province, Xining, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=101.8241&amp;materialsCitation.latitude=36.6158" title="Search Plazi for locations around (long 101.8241/lat 36.6158)">Near Xining High-Speed Rail Station</a> (36.6158°N, 101.8241°E), 2220 m a. s. l., 20. ix. 2023, leg. Tianyun Chen, Jiabo Fan &amp; Yiying Zhao . Paratypes. China • 14 ♂♂ 4 ♀♀ (CMMI 20230920002 D – 006 D, - 008 D, - 013 D – 021 D, - 023 D – 024 D), same as holotype .</p><p>Other material.</p><p>China • Henan Province • 1 ♀ (CMMI 20240705045 D), Yuzhou, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=113.4983&amp;materialsCitation.latitude=34.1684" title="Search Plazi for locations around (long 113.4983/lat 34.1684)">near Yuzhou Forest Botanical Garden</a> (34.1684°N, 113.4983°E), 120 m a. s. l., 05. vii. 2024, leg. Jiabo Fan &amp; Yizhan Shi ; • 3 ♂♂ 1 ♀ (CMMI 20240702024 D, - 027 D – 029 D), Linzhou, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=113.688&amp;materialsCitation.latitude=36.1702" title="Search Plazi for locations around (long 113.688/lat 36.1702)">Feilong Gorge</a> (36.1702°N, 113.6880°E), 700 m a. s. l., 02. vii. 2024, leg. Jiabo Fan &amp; Yizhan Shi . – Heilongjiang Province • 3 ♀♀ (CMMI 20240718014 D, - 032 D, - 054 D), Shuangyashan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=131.1939&amp;materialsCitation.latitude=46.5007" title="Search Plazi for locations around (long 131.1939/lat 46.5007)">Heilongjiang Qingshan National Forest Park, Main Gate Parking Lot</a> (46.5007°N, 131.1939°E), 260 m a. s. l., 18. vii. 2024, leg. Jiabo Fan, Jing Zhong &amp; Feiyu Huang ; • 1 ♂ 4 ♀♀ (CMMI 20240701007 D, - 026 D, - 031 D, - 033 D, - 046 D), Qiqihar, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=123.9454&amp;materialsCitation.latitude=47.3496" title="Search Plazi for locations around (long 123.9454/lat 47.3496)">Longsha Park</a> (47.3496°N, 123.9454°E), 150 m a. s. l., 1. vii. 2024, leg. Yuan Xiong &amp; Yifei Yu ; • 1 ♂ (CMMI 20240628035 D), Bin County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=127.5453&amp;materialsCitation.latitude=45.5816" title="Search Plazi for locations around (long 127.5453/lat 45.5816)">Xianglushan National Forest Park</a> (45.5816°N, 127.5453°E), 340 m a. s. l., 28. vi. 2024, leg. Yuan Xiong &amp; Yifei Yu ; – Jilin Province • 1 ♂ (CMMI 20240926002 D), Tonghua County, Jindou Korean-Manchu Ethnic Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=125.6516&amp;materialsCitation.latitude=41.7407" title="Search Plazi for locations around (long 125.6516/lat 41.7407)">Luojiagou</a> (41.7407°N, 125.6516°E), 800 m a. s. l., 26. ix. 2024, leg. Chao Jiang ; • 17 ♂♂ 16 ♀♀ (CMMI 20240924016 D – 018 D), Tonghua, Dongchang Dist., <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=125.938&amp;materialsCitation.latitude=41.7316" title="Search Plazi for locations around (long 125.938/lat 41.7316)">Mt. Yuhuangshan</a> (41.7316°N, 125.9380°E), 830 m a. s. l., 24. ix. 2024, leg. Chao Jiang ; • 5 ♂♂ 4 ♀♀ (CMMI 20250924002, - 045, - 047 - 049–050, - 053, - 056, - 058, - 065), Yanbian Korean Autonomous Prefecture, Hunchun, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=130.3756&amp;materialsCitation.latitude=42.8657" title="Search Plazi for locations around (long 130.3756/lat 42.8657)">Henandong Street</a> (42.8657°N, 130.3756°E), 70 m a. s. l., 24. ix. 2025, leg. Chao Jiang ; • 1 ♂ 3 ♀♀ (CMMI 20250923091, - 093, - 099, - 104), Yanbian Korean Autonomous Prefecture, Yanji, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=129.4603&amp;materialsCitation.latitude=42.8427" title="Search Plazi for locations around (long 129.4603/lat 42.8427)">Maoershan National Forest Park</a> (42.8427°N, 129.4603°E), 460 m a. s. l., 23. ix. 2025, leg. Chao Jiang ; • 1 ♂ 1 ♀ (CMMI 20240703034 D, - 048 D), Songyuan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=124.8679&amp;materialsCitation.latitude=45.1627" title="Search Plazi for locations around (long 124.8679/lat 45.1627)">Baerda Park</a> (45.1627°N, 124.8679°E), 120 m a. s. l., 03. vii. 2024, leg. Yuan Xiong &amp; Yifei Yu . – Shaanxi Province • 1 ♂ (CMMI 20190907031), Baoji, Mei County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=107.7461&amp;materialsCitation.latitude=34.0869" title="Search Plazi for locations around (long 107.7461/lat 34.0869)">Honghegu Forest Park</a> (34.0869°N, 107.7461°E), 1010 m a. s. l., 07. ix. 2019, leg. Chao Jiang . – Shanxi Province • 4 ♂♂ (CMMI 20231030003 D – 006 D), Taiyuan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=112.763&amp;materialsCitation.latitude=37.9285" title="Search Plazi for locations around (long 112.763/lat 37.9285)">Longcheng Forest Park</a> (37.9285°N, 112.7630°E), 1600 m a. s. l., 30. X. 2023, leg. Tianyun Chen, Yuan Xiong &amp; Jiabo Fan .</p><p>Diagnosis.</p><p>Body length reaching at least 12 mm; number of leg-bearing segments 47–49; clypeus with two indistinct and internally areolate clypeal areas; lacking poorly defined, pigmented, weakly areolate areas close to posterior margin; labral mid-piece with stout denticles, with ~ 20–22 bristles on lateral parts and seven or eight rows of dentate projections; coxosternite of forcipular segment with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.7 × as long as the coxosternite; without pore-fields near the anterior margin of the metasternites; coxopleuron with 11–21 coxal pores in adults, opening independently on ventral and dorsal sides of coxopleuron.</p><p>Description of holotype (adult male).</p><p>Body 32 mm long; with 49 leg-bearing segments; body tapering distally. Color (in ethanol 75 %) yellow or ochre yellow; forcipules darker.</p><p>Cephalic capsule (Fig. 6 A, C, D) subrectangular; ~ 1.4 × longer than wide; anterior margin convex; areolation uniform on the entire surface; with an indistinct transverse suture. Clypeal areas indistinct and internally areolate; without poorly defined, pigmented, weakly areolate areas (Fig. 2 E). Clypeal setae: one pair anterior, four or five pairs intermediate, one pair posterior. Labral mid-piece as wide as long, with nine stout denticles; with ~ 20–22 bristles and seven or eight rows of dentate projections on lateral parts.</p><p>Antennae (Fig. 6 B) almost uniform in width; ~ 3.4 × as long as the length of the head. Basal articles only slightly more elongated (article II ~ 1.3 × as long as wide); distal articles stouter (article XIII ~ 1.2 × as long as wide); article XIV ~ 2.0 × as long as wide. Setae gradually denser and shorter from the basal articles to the distal ones. Articles I – XII with distinctly two whorled long setae along with numerous short setae; remaining articles equipped with uniform setae.</p><p>Mandible (Fig. 6 E) with a single pectinate lamella with ~ 28 hyaline teeth.</p><p>First maxillae (Fig. 6 F). Coxosternite entire; uniformly areolate; with pair a of lateral lappets; 1 + 1 setae close to the anterior margin. Coxal projection subtriangular; as long as wide; ventral side with 3 + 3 setae on distal half; dorsal surface with numerous small sensilla on distal half. Telopodite with two articles, telopodite longer than coxal projection; distinctly articulated; one external lappet on each article; ventral side with 5 + 6 setae on distal half; dorsal surface with numerous small sensilla on distal half.</p><p>Second maxillae (Fig. 6 F). Coxosternite entire; uniformly areolate; anterior margin deeply concave; 5 + 5 setae on the middle part; metameric pore indistinct. Telopodite composed of three articles; gradually narrowing toward the tip; pretarsus of telopodite pointed, almost straight and gradually tapering on the telopodite.</p><p>Forcipular segment (Fig. 6 G). Tergite subtrapezoid; ~ 2.6 × as wide as long. Coxosternite ~ 1.1 × as wide as long on exposed part; anterior margin moderately projecting with respect to its condyles; anterior border with shallow medial concavity; with anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.7 × as long as the coxosternite. Trochanteroprefemur ~ 1.5 × as long as wide. Forcipular articles from trochanteroprefemur to tarsungulum with 1, 0, 0, and 1 denticle, respectively; basal denticle of the tarsungulum is subtriangular. Tarsungulum ~ 2.8 × as long as wide. Basal denticle of tarsungulum with distal margin distinctly convex and ~ 0.3 × as long as the basal breadth of the tarsungulum. Calyx of venom gland short, ~ 1.1 × as long as wide, situated in femur.</p><p>Leg-bearing segments (Fig. 6 H, I). Tergites of leg-bearing segments with two paramedian sulci, becoming faint or obsolete on posterior segments. Metasternites subrectangular; without a mid-longitudinal sulcus. Ventral pores begin on leg-bearing segment 1 as two pairs (~ 8 pores) close to posterior margin; absent from segment 4 and posterior. Legs 1 smaller than the others; pretarsus claw-like, reaching ~ 1 / 3 of the length of the tarsus.</p><p>Ultimate leg-bearing segment (Fig. 6 J, K). Pretergite ~ 3.7 × as wide as long on exposed part. Metatergite ~ 1.2 × as wide as long, subtrapezoid. Metasternite ~ 1.0 × as wide as long; posterior margin ~ 0.4 × as wide as anterior margin; with dense setae. Coxopleuron with 11 or 12 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron; setae on the coxopleuron distinctly denser close to the ventral posterior edge. Ultimate leg with dense setae on ventral and lateral sides. Ultimate pretarsus claw-like; ~ 0.4 × as long as tarsus. Ultimate legs swollen, with scattered setae; dense short setae on ventral sides.</p><p>Postpedal segments (Fig. 6 J). Intermediate sternite distinct and exposed; first genital sternite separated from pleurites by distinct sutures; gonopods biarticulate, with setae; penis conical; anal pores indistinct.</p><p>Differences in paratype (adult female).</p><p>Body 27–30 mm long; with 49 leg-bearing segments.</p><p>Ultimate leg-bearing segment (Fig. 6 L, M). Coxopleuron with 19–21 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron. Ultimate legs slender, with scattered setae; a few setae on ventral sides.</p><p>Postpedal segments (Fig. 6 L). Intermediate sternite distinct and exposed; first genital pleurosternite ~ 1.8 × as wide as long, posterior margin slightly concave, uniformly with sparse setae; gonopods lamina distinctly bilobate, with sparse setae; anal pores present.</p><p>Differences in paratype (adult male).</p><p>Body 24–33 mm long; with 47–49 leg-bearing segments.</p><p>Etymology.</p><p>Latin: multi = many, serialis = series. The specific epithet refers to the lateral parts of the labrum bearing several layers of dentate projections. We suggest the Chinese common name as “层齿地蜈蚣”.</p><p>Remarks.</p><p>The temporary assignment of this species to the genus Pachymerium is proposed. In overall morphology, it closely resembles the type species of the genus, Pachymerium ferrugineum, but differs in several distinctive characters: it possesses a narrow, subtriangular labrum, which is characterized by seven or eight rows of dentate projections on its lateral parts, a feature not observed in any known species of Pachymerium . Additionally, it lacks pore-fields near the anterior margin of the metasternites and lacks poorly defined, pigmented, weakly areolate areas on the anterior cephalic capsule, both of which distinguish it from P. ferrugineum . Females have more coxal pores than males, a difference likely scaling with body size, since most females examined are larger.</p><p>Distribution.</p><p>China (Qinghai, Henan, Heilongjiang, Jilin, Shaanxi, and Shanxi provinces).</p></div>	https://treatment.plazi.org/id/AE0127CCB1E85E1986DFE8E4E2253DF8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yu, Yifei;Xiong, Yuan;You, Chunxue;Jiang, Chao	Yu, Yifei, Xiong, Yuan, You, Chunxue, Jiang, Chao (2026): Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae). ZooKeys 1281: 265-289, DOI: 10.3897/zookeys.1281.182253
D2A376F9DBB2528BBB376FDDF5D7E8E4.text	D2A376F9DBB2528BBB376FDDF5D7E8E4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pachymerium proximiporum Yu & Xiong & You & Jiang 2026	<div><p>Pachymerium proximiporum sp. nov.</p><p>Figs 1 C, 2 C, 5</p><p>Type material examined.</p><p>Holotype. China • ♂ (CMMI 20230420003 D), Chongqing, Wushan, Gaotang Street, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=109.8775&amp;materialsCitation.latitude=31.0742" title="Search Plazi for locations around (long 109.8775/lat 31.0742)">Pinghu Road</a> (31.0742°N, 109.8775°E), 200 m a. s. l., 20. iv. 2023, leg. Chao Jiang . Paratypes. China • Hunan Province • 2 ♂♂ (CMMI 20250415026), Zhangjiajie, Yongding Dist., <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.5005&amp;materialsCitation.latitude=29.1282" title="Search Plazi for locations around (long 110.5005/lat 29.1282)">Huilong Park</a> (29.1282°N, 110.5005°E), 220 m a. s. l., 15. iv. 2025, leg. Yuan Xiong &amp; Jing Zhong . – Sichuan Province • 1 ♀ (CMMI 20210415134 D), Dujiangyan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.6129&amp;materialsCitation.latitude=30.9662" title="Search Plazi for locations around (long 103.6129/lat 30.9662)">Yukang Road</a> (30.9662°N, 103.6129°E), 690 m a. s. l., 15. IV. 2021, leg. Chao Jiang . • 1 ♀ (CMMI 20240416001 D), Wanyuan, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=108.0318&amp;materialsCitation.latitude=32.0657" title="Search Plazi for locations around (long 108.0318/lat 32.0657)">Taiping Town</a> (32.0657°N, 108.0318°E), 610 m a. s. l., 16. iv. 2024, leg. Chao Jiang ; • 1 ♀ (CMMI 20240324009 D), Suining, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=105.568&amp;materialsCitation.latitude=36.5836" title="Search Plazi for locations around (long 105.568/lat 36.5836)">Mt. Hemingshan</a> (36.5836°N, 105.5680°E), 300 m a. s. l., 24. iii. 2024, leg. Yuan Xiong &amp; Yifei Yu ; • 1 ♂ (CMMI 20240322006 D), Ziyang, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=104.636&amp;materialsCitation.latitude=30.1392" title="Search Plazi for locations around (long 104.636/lat 30.1392)">Sanxian Park</a> (30.1392°N, 104.6360°E), 360 m a. s. l., 22. iii. 2024, leg. Yuan Xiong &amp; Yifei Yu .</p><p>Diagnosis.</p><p>Body length reaching at least 20 mm; number of leg-bearing segments 41–49; clypeus with two distinct and internally non-areolate clypeal areas and two poorly defined, pigmented areas close to posterior margin (Fig. 2 C); without the lateral rows of setae that are present in most species of Pachymerium; labral mid-piece with five stout denticles, with ~ 6–9 bristles on lateral parts; coxosternite of forcipular segment without anterior denticle; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.3 × as long as the coxosternite; coxopleuron with ~ 22–37 coxal pores in adults, pores opening independently, clustered on proximal half of the ventral and dorsal sides of coxopleuron except the most posterior one which is displaced from all other pores.</p><p>Description of holotype (adult male).</p><p>Body 21 mm long; with 43 leg-bearing segments; body tapering distally. Color (in ethanol 75 %) pale yellow; forcipules darker.</p><p>Cephalic capsule (Fig. 5 A, C, D) subrectangular; ~ 1.4 × longer than wide; anterior margin convex; areolation uniform on the entire surface; with a distinct transverse suture. Clypeus with two distinct and internally non-areolate clypeal areas and two poorly defined, pigmented areas close to posterior margin. Clypeal setae: one pair anterior, one pair intermediate (clypeal areas without setae) and one pair posterior. Labral mid-piece wider than long, with five stout denticles; each side-piece entire, with ~ 6–9 bristles on lateral parts.</p><p>Antennae (Fig. 5 B, N, O) composed of 14 articles (occasionally exhibiting a developmental aberration with 12–13), almost uniform in width; ~ 3.9 × as long as the length of the head. Basal articles only slightly more elongated (article III ~ 1.3 × as long as wide); distal articles stouter (article XII ~ 1.2 × as long as wide); article XIII ~ 1.8 × as long as wide. Setae gradually denser and shorter from the basal articles to the distal ones. Articles I – X with two whorls of long, distinct setae along with numerous short setae; remaining articles equipped with uniform short setae.</p><p>Mandible (Fig. 5 E) with a single pectinate lamella with ~ 24 hyaline teeth.</p><p>First maxillae (Fig. 5 F). Coxosternite entire; uniformly areolate; with a pair of lateral lappets; 3 + 3 setae close to the anterior margin. Coxal projection subtriangular; longer than wide; ventral side with 7 + 8 setae on distal half; dorsal surface with numerous small sensilla on distal half. Telopodite with two articles, telopodite longer than coxal projection; distinctly articulated; one external lappet on each article; ventral side with 4 + 4 setae on distal half; dorsal surface with numerous small sensilla on distal half.</p><p>Second maxillae (Fig. 5 F). Coxosternite entire; uniformly areolate; anterior margin deeply concave; 4 + 4 setae close to the anterior margin; metameric pores opening close to posterior margin. Telopodite composed of three articles; gradually narrowing toward the tip; pretarsus of telopodite pointed, almost straight and gradually tapering toward the tip.</p><p>Forcipular segment (Fig. 5 G). Tergite subtrapezoid; ~ 2.3 × as wide as long. Coxosternite ~ 1.3 × as wide as long on exposed part; anterior margin moderately projecting with respect to its condyles; anterior border with shallow medial concavity; without anterior denticles; chitin lines incomplete, vanishing before reaching the condyle, ~ 0.3 × as long as the coxosternite. Trochanteroprefemur ~ 1.6 × as long as wide. Forcipular articles from trochanteroprefemur to tarsungulum with 1, 0, 0, and 1 denticle, respectively; basal denticle of the tarsungulum is subtriangular. Tarsungulum ~ 2.6 × as long as wide. Basal denticle of tarsungulum with distal margin distinctly convex and ~ 0.2 × as long as the basal breadth of the tarsungulum. Calyx of venom gland short, ~ 1.4 × as long as wide, situated in femur.</p><p>Leg-bearing segments (Fig. 5 H – I). Tergites of leg-bearing segments with two paramedian sulci, becoming faint or obsolete on posterior segments. Metasternites subrectangular; without a mid-longitudinal sulcus. Ventral pores begin on leg-bearing segment 1 as a transverse group (~ 15 pores) close to posterior margin plus two paired pore-fields (~ 7 + 8 pores) close to anterior margin; on segment 14 the transverse group replaced by two paired pore-fields (~ 11 + 14 pores); absent from segment 16 and posterior. Leg pretarsus claw-like, reaching ~ 1 / 3 of the length of the tarsus.</p><p>Ultimate leg-bearing segment (Fig. 5 J, K). Pretergite ~ 3.4 × as wide as long on exposed part. Metatergite ~ 1.1 × as wide as long, subtrapezoid. Metasternite ~ 1.1 × as wide as long; posterior margin ~ 0.5 × as wide as anterior margin; with dense setae. Coxopleuron with 22–37 pores, opening independently, clustered on the proximal half of the ventral and dorsal sides of coxopleuron, except the most posterior pore, which is separate from all the other pores; setae on the coxopleuron distinctly denser close to the ventral posterior edge. Ultimate leg with dense setae on ventral and lateral sides. Ultimate pretarsus claw-like; ~ 0.2 × as long as tarsus.</p><p>Postpedal segments (Fig. 5 J). Intermediate sternite distinct and exposed; first genital sternite separated from pleurites by distinct sutures; gonopods biarticulate, with setae; penis conical; anal pores indistinct.</p><p>Differences in paratype (adult female).</p><p>Body 20–27 mm long; with 41 leg-bearing segments.</p><p>Ultimate leg-bearing segment (Fig. 5 L, M). Coxopleuron with 28–34 pores, opening independently, scattered on the ventral and dorsal sides of coxopleuron. Ultimate legs slender, with scattered setae; a few setae on ventral sides.</p><p>Postpedal segments (Fig. 5 L). Intermediate sternite distinct and exposed; first genital pleurosternite ~ 2.1 × as wide as long, posterior margin slightly concave, uniformly with sparse setae; gonopodal lamina not distinctly bilobate, with sparse setae; anal pores present.</p><p>Differences in paratype (adult male).</p><p>Body 24 mm long; with 41 leg-bearing segments.</p><p>Etymology.</p><p>Latin: proximus = near, porum = pore. The specific epithet refers to the coxal pores aggregated on proximal half of the coxopleuron ventral side. We suggest the Chinese common name as “近孔地蜈蚣”.</p><p>Remarks.</p><p>The new species resembles P. ferrugineum in the number of clypeal areas (Attems 1929: fig. 205; Bonato et al. 2004: fig. 12), but can be distinguished from the latter by a combination of morphological characteristics: the number of bristles on labral lateral parts, and the distribution of the coxal pores on the ventral side of the coxopleuron. The new species bears 6–9 bristles on the labral lateral parts, compared to 15 bristles in P. ferrugineum (Popovici 2024: fig. 1 A). It also lacks the lateral rows of setae characteristic of most Pachymerium species. Regarding the ventral surface of the coxopleuron, the coxal pores in the new species are clustered mainly on the proximal half, with only the posteriormost pore situated more distally. In P. ferrugineum, the coxal pores are more broadly scattered across the ventral surface of the coxopleuron (Bonato et al. 2004: fig. 4). Furthermore, this species exhibits 12–14 antennal segments, and all examined individuals are adults. Although 14 antennal segments is the typical number for Geophilomorpha, the observed reduction is unlikely to result from postembryonic damage. As Minelli et al. (2000) pointed out, no reliable instance of antennal regeneration is known in Geophilomorpha, and they are inclined to think that no such regeneration actually occurs in this group. Therefore, specimens with fewer than 14 articles, especially when the terminal article retains the shape and sensilla characteristic of a typical article XIV, are more likely attributable to developmental defects (non-disjunction of potential antennomeres) rather than physical injury.</p><p>Distribution.</p><p>China (Hunan and Sichuan provinces; Chongqing).</p></div>	https://treatment.plazi.org/id/D2A376F9DBB2528BBB376FDDF5D7E8E4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yu, Yifei;Xiong, Yuan;You, Chunxue;Jiang, Chao	Yu, Yifei, Xiong, Yuan, You, Chunxue, Jiang, Chao (2026): Four new species of Pachymerium centipedes from China (Geophilomorpha, Geophilidae). ZooKeys 1281: 265-289, DOI: 10.3897/zookeys.1281.182253
