Raveniola caudata

Zonstein, Sergei, 2009, A review of the mygalomorph spiders of the Raveniola caudata species-group (Araneae, Nemesiidae), Zootaxa 2217, pp. 37-42 : 38

Raveniola caudata species group

Diagnosis: Species differ from other congeners by the long, digitiform apical segment of PLS and broadlytipped embolus with a subapical membranous flange. Medium-sized to large nemesiids with carapace length 6–8 mm. Eye tubercle relatively low, small. Chelicerae without mound and rastellum. Maxillae rectangular, unmodified. Numerous maxillary cuspules arranged in wide triangular area. Sternal sigilla moderately small, submarginal. In males, palpal tibia moderately long, cylindrical. Cymbium not shortened; palpal bulb with relatively small subtegulum; tegulum with short characteristic broadly-tipped embolus. Male legs long, but more stout than slender, without long modified hairs. Male tibia I with two retroventral megaspines more or less widely spaced. In males, genital area covered with numerous and large epiandrous fusillae. Two pairs of spinnerets: PMS relatively large, functional; PLS long with apical segment equal to basal or longer. Adult females are unknown.

Species included: R. redikorzevi ( Spassky 1937) and R. caudata sp. n.