Abstract
A new genus, Promolotragen. nov., including two new species, P. hponkanrazisp. nov. (♂♀) and P. shankhaungsp. nov. (♂), is described from Myanmar. The new genus is similar to Molotra Ubick & Griswold, 2011 but can be distinguished by the completely fused bulb and cymbium, the presence of a receptacle, the absence of grooves connecting either the anterior or posterior pairs of spiracles, and the incised labium of both sexes.
Highlights
Oonopidae is a diverse spider family with 1846 extant described species in 113 genera (Li 2020)
Several new oonopid genera of Southeast Asia have been erected in recent years
A new oonopid genus and two new species collected from Myanmar, are described and illustrated
Summary
Oonopidae is a diverse spider family with 1846 extant described species in 113 genera (Li 2020). Resembles Molotra Ubick & Griswold, 2011 (Ubick and Griswold 2011) by the heavily sclerotized dorsal and ventral abdominal scuta, the long spines on legs I and II, and the embolar region, but can be distinguished by the completely fused bulb and cymbium, the presence of a receptacle, the absence of grooves connecting either the anterior or posterior pairs of spiracles, and the incised labium of both sexes. The new genus is similar to Costarina Platnick & Dupérré, 2011 by the heavily sclerotized dorsal and ventral abdominal scuta, the long spines on legs I and II, the absence of grooves connecting either the anterior or posterior pairs of spiracles, and the fused cymbium and bulb, but can be distinguished by the absence of 3 transverse ridges on the sternum, the embolar region which barely extends beyond the tip of the cymbiobulbus, and the incised labium of both sexes.
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