Ogulnius hapalus
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Ordo: Araneae
Familia: Theridiosomatidae
Genus: Ogulnius
Name
Ogulnius hapalus Zhao & Li, 2012 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Material examined
Holotype: CHINA, Yunnan: Menglun Town: Xishuangbanna Botanical Garden, 21°55.035'N, 101°16.500'E, elevation ca 558 m, 22 July 2007, primary tropical seasonal rain forest, fogging, G. Zheng (IZCAS), 1 male.
Paratypes: [same data as holotype] (IZCAS), 2 males, 6 females.
Etymology
This specific name describes the softness and fragility of this species. The Latin origin is ‘hapalus’ meaning ‘delicate and tender’; adjective.
Diagnosis
Though lack of one genetic feature, which is fourth legs are longer than the first legs (subequal in females), other generic characteristics of Ogulnius can be seen in this species: tapering whip-like embolic apophysis in males (Fig. 19C), transverse grooves on epigyne in females, separated and juxtaposed posterior median eyes (Coddington 1986[1]). Males distinguished from other described Ogulnius species by the shape of median apophysis and the proportion of embolic apophysis. The median apophysis in Ogulnius hapalus.is similar to that in Ogulnius gloriae (Coddington 1986[1]: fig. 99): mesally wide, with a projection oriented distoventrally (Fig. 19A). The embolic apophysis is proportionately longer than that in Ogulnius barbandrewsi (Miller et al. 2009[2]: fig. 5F). The Females distinguished by the routing of copulatory ducts and the peanut-shaped spermathecae. The fold made by the copulatory ducts is bending outwardly (Fig. 20B), instead of inwardly as in Ogulnius barbandrewsi (Miller et al. 1986: fig. 3D). The posterior lip of epigyne in Ogulnius hapalus concave in stead of convex as in Ogulnius pullus (Brignoli 1981[3]: fig.1).
Description
Carapace pale yellow. Sternum ivory. Legs pale yellow, semi-transparent. Abdomen pale with soft, translucent cuticle.
Male pedipalp: Patella with strong sinuous macroseta. Tibia with one trichobothrium. Paracymbium slim with filiform projection distally. Median apophysis curvy, mesally wide, with apex oriented distoventrally (Figs 19A, 21A). Conductor a translucent theca covering about two thirds length of the long filiform embolic apophysis (Figs 19C–D).
Vulva: Epigyne with transverse groove and a concave posterior margin (Fig. 20A). Spermathecae peanut-shaped, juxtaposed (Fig. 20B). Copulatory ducts bend downwardly at top and wide at entrance (Figs 20B, 21B).
Male: Total length 1.00, carapace 0.50 long, 0.40 wide, clypeus 0.09, sternum 0.25 long, 0.25 wide, coxae IV separated by 2.00 times their width. Posterior median eyes separated by 1.5 times their diameter. Macrosetae: Leg I: patella d 1, tibia d 1, p 1; Leg II: patella d 1, tibia d 1; Leg III: patella d 1, tibia d 1; Leg IV: patella d 1, tibia d 1. Metatarsal trichobothria: Tm I: 0.23; Tm II: 0.19; Tm III: 0.27. Leg measurements: I 1.00 (0.30, 0.18, 0.20, 0.20, 0.12); II 0.87 (0.26, 0.12, 0.20, 0.16, 0.13); III 0.57 (0.11, 0.10, 0.11, 0.15, 0.10); IV 0.64 (0.15, 0.10, 0.14, 0.15, 0.10).
Female: Total length 1.41, carapace: 0.50 long, 0.44 wide, clypeus 0.23, sternum 0.30 long, 0.25 wide, coxae IV separated by 2.00 times their width. Posterior median eyes separated 1.5 times their diameter. Macrosetae as in male. Metatarsal trichobothria: Tm I: 0.25; Tm II: 0.21; Tm III: 0.27. Leg measurements: I 0.95 (0.20, 0.25, 0.15, 0.20, 0.15); II 0.82 (0.25, 0.12, 0.15, 0.15, 0.15); III 0.62 (0.12, 0.10, 0.15, 0.15, 0.10); IV 0.90 (0.30, 0.15, 0.15, 0.20, 0.10).
Original Description
- Zhao, Q; Li, S; 2012: Eleven new species of theridiosomatid spiders from southern China (Araneae, Theridiosomatidae) ZooKeys, 255: 1-48. doi
Other References
- ↑ 1.0 1.1 Coddington J (1986) The genera of the spider family Theridiosomatidae. Smithsonian Contributions to Zoology 422: 1-96. doi: 10.5479/si.00810282.422
- ↑ Miller J, Griswold C, Yin C (2009) The symphytognathoid spiders of the Gaoligongshan, Yunnan, China (Araneae, Araneoidea): Systematics and diversity of micro-orbweavers. ZooKeys 11: 9-195. doi: 10.3897/zookeys.11.160-app.C.dt
- ↑ Brignoli P (1981) Spiders from the Philippines IV. A new Ogulnius and notes on some other oriented and Japanese Theridiosomatidae (Araneae). Acta Arachnologica 30: 9-19. doi: 10.2476/asjaa.30.9
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