identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03A487960E51260DFF54BAD6B2FBFB91.text	03A487960E51260DFF54BAD6B2FBFB91.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eleusis huanglongensis Lu 2025	<div><p>Eleusis huanglongensis Lü, sp. nov.</p><p>Chinese common name: WtĸåDzøm</p><p>(Figs 1–4)</p><p>Etymology. The specific epithet is from the name ( Chinese Pinyin) of the type locality “Huanglong” (= Huanglong National Scenic Reserve [Wī国ẍãĸDz名Ḇ保ae区]).</p><p>Type material. HOLOTYPE: CHINA, Sichuan: ♂, Aba Tibetan and Qiang Autonomous Prefecture [=Ngawa], Songpan County [NJā县], <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=104.051674&amp;materialsCitation.latitude=32.733414" title="Search Plazi for locations around (long 104.051674/lat 32.733414)">Huanglong National Scenic Reserve, Danyunxia Gorge</a> [丹云«], 32.73341478°N, 104.05167651°E, 2202 m, 6-AUG-2025, dead wood, leg. Liang Lü. PARATYPE: ♀, same data as holotype, captured together with the holotype. Both types are deposited in the zoological collection of College of Life Sciences, Hebei Normal University, Shijiazhuang, China .</p><p>Measurements</p><p>Holotype (♂). BL: 3.19mm; ABDW: 0.72 mm; HL: 0.60 mm; HW: 0.64 mm; TL: 0.17 mm; EL: 0.13 mm; PL: 0.46 mm; PW: 0.59 mm; ETL: 0.79 mm; ETW: 0.72 mm; FL: 1.76 mm.</p><p>Paratype (♀). BL: 3.57mm; ABDW: 0.88 mm; HL: 0.65 mm; HW: 0.69 mm; TL: 0.16 mm; EL: 0.15 mm; PL: 0.51 mm; PW: 0.63 mm; ETL: 0.88 mm; ETW: 0.83 mm; FL: 2.04 mm.</p><p>Description</p><p>Body (Fig. 1A–B) and legs dorsoventrally flattened, moderately shiny. Head dark brown; pronotum and elytra brown; abdomen dark brown but infuscate posteriorly; antennae, mouthparts, and legs yellowish-brown.</p><p>Head (Figs 1B, 2A–C) slightly wider than long and broader than pronotum; anterior margin truncate medially, slightly oblique laterally; anterior angles slightly raised; lateral margins almost parallel behind eyes; eyes small, moderately convex; temples distinctly expanded outwards; supra-ocular grooves broad and distinct, extending posteriorly across nearly eye and temple together, each end equipped with one or two setae; vertex flat, lacking sulci, with not quite dense punctation; ventral surface of head with same pattern of punctation; gular sutures confluent anteriorly. Fine and dense fingerprint-like microsculpture transverse on clypeus, longitudinal on vertex, parallel to margin on frontal border, transverse on mentum and submentum, and diagonal on ventral side.</p><p>Labrum (Fig. 2D) arcuate, anterior margin with approximately 12 setae; median two setae distinctly shorter than lateral ones. Mandibles incurved apically; small tooth present on medial margin of right mandible but absent on left mandible. Maxillary palpi (Fig. 2E) with segments I and II equal in length, III and IV almost equal in length, IV slightly longer but narrower than III. Labial palpi (Fig. 2E–F) 3-segmented, segment II and III equal in length, II narrower than III. Mentum (Fig. 2F) trapezoidal, sides slightly outcurved and bearing seta on each side; anterior margin bearing nine setae; seta situated in each bottom angle.</p><p>Antennal (Fig. 2G) scape cylindrical; antennomere II narrower than scape, III basally constricted and approximately as long and wide as II; IV–VII longer than wide; III–IX moniliform (bead-like); XI bullet-shaped; I–III glabrous, IV–XI pubescent.</p><p>Pronotum (Figs 1B, 2H) approximately inversely triangular; lateral margins slightly sinuate posteriorly; surface with fingerprint-like microsculpture and fine punctation; punctures finer and sparser than on head; median longitudinal sulcus visible but faint anteriorly and posteriorly. Scutellum (Fig. 1B) with transverse microsculpture. Mesoventrite (Fig. 2I) with coarse reticulation.</p><p>Legs (Fig. 3A–C) with tibia bearing distinct strong spines at apex of lateral side; protibia (Fig. 3A, D) bearing bristles lined along one side and 6–10 spinules lined on opposite side; tarsi with 5 tarsomeres, first four condensed and together equal in length with apical tarsomere (Fig. 3A–C).</p><p>Elytra (Fig. 1B) longer than wide together; lateral margins gradually widening posteriorly; surface with longitudinal fingerprint-like microsculpture and sparse fine punctures; lateral portion with four setiferous punctures.</p><p>Abdominal sternite III (Fig. 3E) with basal ridge and discontinuous subbasal ridge; tergite VIII (Figs 3F–H, 4A) with sides parallel in front 1/4 and tapering in posterior 3/4, with posterior margin narrowly round; sternite VIII (Fig. 4B) gradually narrowed posteriorly, with posterior margin truncate; tergite IX (Fig. 3H) separate and dorsally invisible, with each valve narrow subtriangular, laterally connected with tergites VIII and X, anteriorly connected with sternite VIII; sternite IX (Fig. 4C) lying between valves of sternite IX, ovoid and tapering anteriorly, with posterior margin membranous and transparent; tergite X (Figs 3F–H, 4A) crescent-shaped, anteriorly tightly fused with tergite VIII, with posterior margin narrowly round and transparent.</p><p>Male. Aedeagus (Fig. 4D–G) with median lobe ovoid with tapering apex, moderately translucent with weak sclerotization; apex slightly rounded; with bi-lamellar sclerotized prominence inside. Parameres clavate, broad and flattened in apical half, apical seta present (missing but setal fovea observable).</p><p>Female. Larger than male in size, larger eye-to-temple ratio. Spermatheca not observed.</p><p>Distribution. China (Sichuan).</p><p>Remarks</p><p>Eleusis huanglongensis sp. nov. is morphologically similar to the widespread E. humilis (cf. Fig. 4 in Cameron 1928), but can be reliably distinguished by a combination of characters, including a proportionally broader head, longer temples relative to eye length, and configuration of the bi-lamellar prominence inside the aedeagal median lobe (cf. Figs 3 &amp; 28 in Irmler 2017). The new species is readily separable from E. pusilla (2.33 mm long, ex. Fauvel 1895), E. persimilis (4–5 mm long, ex. Cameron 1945), and E. xizangensis (4.5 mm long, ex. Zheng 2004) simply by its smaller or larger body size. In males of E. persimilis, the left mandible is a strongly angulate (Cameron 1945), whereas E. huanglongensis sp. nov. exhibits no marked asymmetry between the mandibles. Compared to E. xizangensis, which has a notably low eye-to-temple ratio (1:1.8, ex. Zheng 2004), the new species presents ratios of 1: 1.3 in males and 1: 1.1 in females. Eleusis terminata males possess more prominent eyes and temples than those of the new species, and females exhibit an eye-to-temple ratio clearly exceeding 1 (cf. Figs 20 &amp; 21 in Cameron 1930), contrasting with the ratio observed in E. huanglongensis sp. nov. Additionally, E. terminata displays a less brownish coloration relative to the new species (cf. Key in Naomi 1996).</p></div>	https://treatment.plazi.org/id/03A487960E51260DFF54BAD6B2FBFB91	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.		MagnoliaPress via Plazi	Ma, Hong-Ye;Li, Yang;Yang, Baolin;Lü, Liang	Ma, Hong-Ye, Li, Yang, Yang, Baolin, Lü, Liang (2025): Eleusis huanglongensis, a new subcortical species of unmargined rove beetles (Coleoptera: Staphylinidae: Osoriinae) from Sichuan, China. Zootaxa 5717 (3): 441-448, DOI: 10.11646/zootaxa.5717.3.9, URL: https://doi.org/10.11646/zootaxa.5717.3.9
