Theridion mucidum, Gao & Li, 2014

Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, Zoological Systematics 39 (1), pp. 1-135 : 109-115

publication ID

https://doi.org/ 10.11865/zs20140101

publication LSID

lsid:zoobank.org:pub:D500B21F-511A-4B49-9968-9F51F1606427

persistent identifier

https://treatment.plazi.org/id/03FD812E-793C-E645-B5B2-F8E31C5383C8

treatment provided by

Felipe

scientific name

Theridion mucidum
status

sp. nov.

Theridion mucidum View in CoL sp. nov. ( Figs 93–96 View Fig View Fig View Fig View Fig )

Holotype ♂, China, Yunnan, Xishuangbanna, Menglun Nature Reserve , primary tropical seasonal rainforest (21º54.725'N, 101º13.261'E), 8 August 2007, Guo Zheng leg. GoogleMaps

Paratypes: 10♂, 3♀, Menglun, primary tropical seasonal rainforest (21º55.035'N, 101º16.500'E), 22 July 2007, Guo Zheng leg.

© Zoological Systematics, 39 (1): 1–135

© Zoological Systematics, 39 (1): 1–135

Etymology. The specific name derives from the Latin adjective mucidus and means moldy, in reference to the cymbium with black spots, liked mildew accreting on it.

Diagnosis. The new species is very similar to T. makotoi , but can be distinguished by having the embolus shorter and the tegular apophysis having a zigzag edge.

Male (measurements of holotype). Total length 1.15. Prosoma 0.50 long, 0.44 wide, yellow, with black stripes. Sternum 0.34 long, 0.33 wide, yellow with large black spot. Opisthosoma 0.55 long, 0.56 wide, pale, with black, white spots, without colulus. Eye measurements: AME 0.09, ALE 0.08, PME 0.09, PLE 0.08, AME-AME 0.04, AME-ALE 0.02, PME-PME 0.03, PME-PLE 0.04. Clypeus height about 1.14 times AME diameter, yellow with black spot. Chelicerae: yellow, with 2 anterior teeth; fangs long. Endites: 0.19 long, 0.15 wide, yellow, with brown pro-edges. Labium fused with sternum, 0.06 long, 0.14 wide, with 4 setae, yellow with large black spot. Leg measurements: I 2.64 (0.81, 0.31, 0.69, 0.50, 0.33); II 2.30 (0.80, 0.21, 0.58, 0.38, 0.33); III 1.92 (0.69, 0.13, 0.40, 0.40, 0.30); IV 2.19 (0.70, 0.30, 0.53, 0.35, 0.31). Leg I coxa pale, without spot; femur pale without spot; patella-metatarsus pale, with black spots; femur with

© Zoological Systematics, 39 (1): 1–135 slender setae, without spine; patella with 2 trichobothria, without spine; tibia with many trichobothria; metatarsus with 2 trichobothria; tarsus without spine. Legs II–IV similar to leg I, femur IV pale, with black spot. Pedipalpus ( Figs 93A–B View Fig , 94A–C View Fig , 96A–D View Fig ): tibia yellow, with black spot, 2 trichobothria; cymbium yellow, with large black spot; paracymbium hooded; subtegulum broad; tegulum confined; median apophysis smooth; embolus short, curved; conductor puckered at distal end; tegular apophysis with zigzag edge.

Variation. Male paratypes. Total length 1.30–1.35; prosoma 0.60–0.63 long, 0.50–0.65 wide; sternum 0.35–0.40 long, 0.35–0.38 wide; opisthosoma 0.60–0.63 long, 0.45–0.60 wide.

Female (measurements of paratypes). Total length 1.43–1.50. Prosoma 0.60–0.63 long, 0.50–0.58 wide, flat, yellow, with black stripes. Sternum 0.35–0.38 long, 0.33–0.38 wide, pale yellow. Opisthosoma 0.85–0.88 long, 0.85–0.90 wide, pale, with white, black spots. Legs yellow, similar to male. Epigynum ( Figs 93C–D View Fig , 95A–B View Fig ): epigynum flat, with handle; copulatory openings small, inconspicuous; spermathecae spherical, slender, crimpled, without distinct sclerotizations copulatory ducts slender, curved, from middle part of spermathecae, opening to nterior margin of atrium; fertilization ducts pale, slender, from posterior edge of spermathecae.

© Zoological Systematics, 39 (1): 1–135

© Zoological Systematics, 39 (1): 1–135

© Zoological Systematics, 39 (1): 1–135

Distribution. Only known from type locality (Yunnan).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theridiidae

Genus

Theridion

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