Theridiosoma plumaria
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Ordo: Araneae
Familia: Theridiosomatidae
Genus: Theridiosoma
Name
Theridiosoma plumaria Zhao & Li, 2012 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Material examined
Holotype: CHINA, Hainan: Mt. Jianfengling National Nature Reserve: Tianchi watershed 18°44.383'N, 108°51.062'E, elevation ca 888 m, 19 July 2007, S. Li (IZCAS), 1 male.
Paratype: CHINA: Hainan: Mt. Bawangling National Nature Reserve, 5 kilometers past Dongerjianchazhan, 19°05.186'N, 109°11.802'E, elevation ca 1010 m, 25 July 2007, S. Li (IZCAS), 1 male.
Etymology
The specific name was taken from the Latin word ‘plumarius’ which means ‘of feathers’. It refers to the plumose branching of its conductor theca (Figs 22B–C); adjective.
Diagnosis
Males, similar to Theridiosoma gemmosum (L. Koch) (Coddington 1986[1]: figs 134, 135), distinguished from any other known male Theridiosoma from Asia by the following characters: broader, slightly groovy median apophysis with an acuminated tip, and the exposed branchings of embolic apophysis (Fig. 22A).
Description
Carapace yellow tan. Sternum yellow with brown margins. Legs yellow. Abdomen tan with sparse silver specks and symmetric dark grey patches.
Male pedipalp: Patella with strong macroseta. Tibia with two trichobothria. Paracymbium hooked with pointed distal end. Tegulum large with tuberculate mesal lobe (Figs 22A, D). Median apophysis a curved lobe attenuate distally. Conductor a translucent theca covering fragmented embolic apophysis, with plumose branching and erect tip near tegulum (Fig. 22B). Embolic apophysis fragment tips protruding out of the conductor (Figs 22A–C). Embolic apophysis fragments long, slim (Figs 22D, 23B).
Male: Total length 1.60, carapace 0.80 long, 0.80 wide, clypeus 0.20, sternum 0.40 long, 0.40 wide, coxae IV separated by their width. Posterior median eyes separated by less than half their diameter. Macrosetae: Leg I: femur p 1, patella d 1, tibia d 1, p 1, r 1; Leg II: femur r 1, patella d 1, tibia d 1, p 1, r 1; Leg III: patella d 1, tibia p 1, r 1, metatarsus p 1; Leg IV: patella d 2, tibia d 1. Metatarsal trichobothria: Tm I: 0.0.25; Tm II: 0.19. Leg measurements: I 3.16 (0.93, 0.35, 0.75, 0.75, 0.38); II 2.80 (0.88, 0.28, 0.63, 0.63, 0.38); III 1.66 (0.50, 0.18, 0.35, 0.38, 0.25); IV 1.83 (0.50, 0.25, 0.38, 0.45, 0.25). Female unknown
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
- ↑ Coddington J (1986) The genera of the spider family Theridiosomatidae. Smithsonian Contributions to Zoology 422: 1-96. doi: 10.5479/si.00810282.422
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