Flexicrurum, Tong & Li, 2007

Tong, Yanfeng & Li, Shuqiang, 2007, First Records Of The Family Ochyroceratidae (Arachnida: Araneae) From China, With Descriptions Of A New Genus And Eight New Species, Raffles Bulletin of Zoology 55 (1), pp. 63-76 : 64

Flexicrurum , new genus

Type species. – Flexicrurum flexicrurum , new species.

Etymology. – The name is from the Latin “ flex = curved, and crur = leg”, and refers to the inner turned palpal tibia of male. Gender neutrum.

Diagnosis. – The new genus is similar to the pholcids-like genera of Althepus Thorell, 1898 , and Leclercera Deeleman- Reinhold, 1995, but it can be distinguished by the absence of cheliceral promarginal teeth, the presence of small denticles on posterior surface of fang, the nearly perpendicular orientation of abdomen to carapace, the special strongly inner turned tibia in male palp, the complicated conductor, and the additional slender bulbal apophysis.

Description. – Carapace posteriorly truncated, thorax with shallow fovea and does not reach the posterior thoracic margin. Eyes 6, composed of a straight transverse row of 4 eyes, and 2 posteriors, connate with the anterior laterals. Clypeus slanting, ratio carapce/clypeus about 3: 1 to 3.5: 1. Cheliceral promargin without teeth, retromargin with 2 small teeth; posterior surface of fang with 13–17 small denticles. Legs without spine. Leg formula: 1 4 2 3. Abdomen elongate, nearly perpendicular to thorax in lateral view. Booklungs present. Colulus narrow, 2.5 times longer than wide, half as long as the anterior spinnerets. Male palpal tibia strongly inner curved. Tarsus with a strong lateral protrusion, and with a small postero-lateral protrusion bearing a strong seta. Conductor complicated. Bulb with a slender apophysis.