Steatoda panja Barrion, Barrion-Dupo & Heong,

Alberto T. Barrion, Aimee Lynn A. Barrion-Dupo, Josie Lynn A. Catindig, Sylvia C. Villareal, Ducheng Cai, Qianhua Yuan & Kong Lu, 2016, NEW SPECIES OF SPIDERS (ARANEAE) FROM HAINAN ISLAND, CHINA, UPLB Museum Publications in Natural History 3, pp. 1-103: 39-40

publication ID 10.5281/zenodo.269136

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scientific name

Steatoda panja Barrion, Barrion-Dupo & Heong

new species

Steatoda panja Barrion, Barrion-Dupo & Heong  , new species [ Figure 45View Figure 45 A-E]

MALE. Holotype male, total length 4.20 mm.

Cephalothorax length 2.00 mm, width 1.40 Abdomen length 2.20 mm, width 1.10 mm.


Carapace. Black, rough with lateral margins weakly serrate, fovea distinctly convex and deep, 1.43 x longer than wide. Chelicerae black, 2.3 x longer than wide, promargin with bidentate tooth.

Eyes. AE row shorter than PE row (0.57: 0.61 mm) Eye diameter (mm): PME (0.14)> AME=ALE (0.12)> PLE (0.11), separation (mm): AME-AME (0.4), AME-ALE (0.03), PME-PME (0.06), PME- PLE (0.07). Clypeus height wide, 2.36 x PME diameter.

Legs. Uniformly brownish red with no strong spines on all legs. Coxa I strongly developed, cylindrical and 1.64 x longer than wide. Tibia I, metatarsus I and femur II subequal in length. Leg formula 1423.

Abdomen. Oblong, anterior end with a neck-like process cleft midapically, slightly elevated anterior end with a circular white narrow band interrupted medially, dorsal plate bears four pairs of brownish black sigilla.

Palpal organ with a distinctly sinuate embolar tip and a long thin white lateral process expanded apically. Cymbium acute to slightly pointed at tip.

FEMALE. Unknown.

Material Examined. Holotype male (coll. No. SO 31), CHINA, Hainan Island, Panja  , Songtao Reservoir, 0 3 April 2011, AT Barrion, JLA Catindig and SC Villareal.

Diagnostic Features. This new species is similar to Steatoda grossa (C.L. Koch, 1838)  , in New Species of Spiders ( Araneae  ) from Hainan Island, China possessing eight sigilla and a long and apically rounded lateral process nearly reaching tip of cymbium. It differs from the named species by having (1) prominently sinuate embolar process and acute apex of the cymbium, (2) femur II as long as tibia I and femur III as long as tibia IV, and (3) tibia II as long as metatarsus II.

Etymology. Named after type locality.