Pergalumna, Grandjean, 1936
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publication ID |
https://doi.org/ 10.24349/acarologia/20214424 |
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persistent identifier |
https://treatment.plazi.org/id/C75F6778-BD5F-FF95-85B0-42982A89F8DA |
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treatment provided by |
Marcus |
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scientific name |
Pergalumna |
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Pergalumna View in CoL clava n. sp.
Zoobank: 6A6F527D-8E3E-4B0F-A13C-6AB896B8C83F
( Figures 1‒4 View Figure 1 View Figure 2 View Figure 3 View Figure 4 )
Diagnosis
Surface of notogaster smooth, prodorsum, pteromorphs outer edge and epimeral region with granules. Rostrum pointed. Lamellar and sublamellar lines present. Rostral and lamellar setae setiform, smooth. Interlamellar seta short, slightly barbed. Bothridial seta clavate, barbed head. Dorsosejugal porose areas and dorsosejugal suture present. Four pairs of notogastral porose areas developed, Aa transverse irregular wedge, A1 rounded, A2 and A3 oval. Median pore area present. Postanal porose area transversely elongate oval.
Description
Measurements — Body length: 710 (holotype), 600–750 (53 paratypes); notogaster width: 540 (holotype), 450–570 (53 paratypes). No distinct differences between females and males in body size.
Integument — ( Figures 1A–B View Figure 1 , 2A–D View Figure 2 , 4A–F View Figure 4 ). Body color brown to black. Prodorsum, pteromorphs outer edge and epimeral region with granules and striations, rest smooth.
Prodorsum — ( Figures 1A View Figure 1 , 2A, 2C View Figure 2 , 4 View Figure 4 AD). Rostrum pointed. Lamellar and sublamellar lines present, curving backwards at ventral end. Rostral ro (43–50) and lamellar le (78–86) setae setiform, smooth. Interlamellar seta in (23–30) short, setiform, slightly barbed. Bothridial seta bs (72–82) clavate, stalk smooth, head surface with slightly barbed and inside with particulate matter. Dorsosejugal porose area Ad (8–10 × 20–26) located transversely, elongate oval.
Notogaster — ( Figures 1A View Figure 1 , 2B, 2D View Figure 2 , 4A View Figure 4 ). Dorsosejugal suture developed, complete. Notogaster rounded posteriorly. Notogastral setae represented by 10 pairs of alveoli or microsetae. With four pairs of notogastral porose areas, Aa (16–35 × 60–68) transverse irregular wedge, pointing mediad; A1 (diameter 22–27) rounded; A2 (10–14 × 26–30) and A3 (8–12 × 43–48) oval. Median pore present in females and males, located posterior to imaginary line connecting porose areas A1. Lyrifissure im located medial to setal alveoli lm and lp.
Opisthonotal gland gla openings located lateral to A1.
Gnathosoma — ( Figures 1D‒F View Figure 1 , 4B View Figure 4 ). Subcapitulum size: 122–127 × 113–118, three pairs of setiform, slightly barbed, setae: h (20‒24), m (18‒22) and a (24‒28). Two pairs of setiform,
smooth adoral setae or 1 (8‒12) and or 2 (8‒12). Length of palps 105–110. Palp with setation 02139 (+ solenidion ω). Length of chelicerae 160–165. Cheliceral setae cha (60–65) and chb (43–48) setiform, barbed bilaterally. Trägårdh’s organ Tg () long, elongate triangular.
Epimeral and lateral podosomal regions — ( Figures 1B View Figure 1 , 4B View Figure 4 ). Epimeral region with granules and striations. Pedotecta I and II rounded in ventral view. Discidium triangular, circumpedal carina distinct. Epimeral setal formula: 1012. Four pairs 1 (a, 3b, 4a and 4b, 5‒15) of epimeral setae setiform, thin, smooth.
Anogenital region — ( Figures 1B View Figure 1 , 2B View Figure 2 , 4B, 4D‒E View Figure 4 ). Six pairs of genital setae (g 1 – g 2, 12–22; g 3 – g 6, 2–12), setiform, short, smooth; g 1 and g 2 parallel to each other at anterior edges of genital plate, other four pairs represented by alveoli or microsetae, arranged vertically in middle of genital plates. One pair of aggenital seta ag (, 0–4) located close to genital aperture. Two pairs of anal and three pairs of adanal setae represented alveoli or microsetae. Adanal lyrifissures located close and lateral to anal plates. Adanal setae ad 1 and ad 2 located in postanal position, ad 3 anterolateral to iad. Distance between ad 1 – ad 2 distinctly shorter than that of ad 2 – ad 3. Postanal porose area Ap (22–26 × 58–62) elongate oval.
Legs — ( Figure 3 View Figure 3 ) All legs tridactylous, median claw distinctly thicker than lateral claws. Formulas of leg setation and solenidia: I (143420) [122], II (143415) [112], III (121315) [110], IV (122312) [010]. Famulus on tarsi I inserted between solenidia ω 1 and ω 2. Homology of setae and solenidia indicated in Table 1.
Material examined
Holotype (male), Mudanfeng National Nature Reserve (44°22 ′ N, 129°53 ′ E), Mudanjiang City, Heilongjiang Province, 20 Jul. 2010, Lixia Xie and Rong Huang , in soil. 53 paratypes: 8 (5 females 3 males) same data as holotype; 7 (5 females 2 males), Liangshui National Nature Reserve (47°9 ′ N, 128°52 ′ E), Yichun City , Heilongjiang Province, 25 Jul. 2010, Lixia Xie and Rong Huang , in soil; 38 (15 females 23 males), Baishilazi National Nature Reserve (40°56 ′ GoogleMaps
N, 124°53 ′ E), Dandong City, Liaoning Province, 3 Aug. 2010, Lixia Xie and Rong Huang, in soil.
Type deposition
The holotype and 7 paratypes are deposited in the Institute of Entomology, Guizhou University, Guiyang, China ( GUGC) ( Zhang 2018). 46 paratypes are deposited in the Guizhou Provincial Center for Disease Control and Prevention, Guiyang, China.
Etymology
The name of the new species comes from the Latin word clava “ ” meaning “clavate” which means that the new species bothridial seta clavate.
Remarks
In having dorsosejugal suture complete; developed four pairs notogastral porose areas, Aa transverse irregular wedge; short interlamellar seta and bothridial seta clavate, Pergalumna clava n. sp. is morphologically similar to Pergalumna akitaensis Aoki, 1961 and Pergalumna formicaria Berlese, 1914 , redescribed by Mahunka, 1992. Differs from Pergalumna akitaensis Aoki, 1961 by the following characteristics: (1) larger porose area Aa and A3 ; Aa and
A3 significantly larger than A1 (versus smaller porose area Aa, A1 and A3 ; and sizes not significantly different in Pergalumna akitaensis ). (2) Median pore and postanal porose area present (versus median pore and postanal porose area absent). (3) Lyrifissure im located medial to lm and lp (versus lyrifissure im located closer to lp and distanced from lm). Differs from Pergalumna formicaria Berlese, 1914 , by the following characteristics: (1) Rostral and lamellar setae smooth (versus rostral and lamellar setae slightly barbed Pergalumna in formicaria ), (2) Prodorsum and pteromorphs with granules (prodorsum and pteromorphs smooth). (3) Lyrifissure im located medial to lm and lp (versus lyrifissure im closer to A1 and distanced from Aa).
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.