Cyphoderopsis Carpenter, 1917

Jantarit, Sopark, Satasook, Chutamas & Deharveng, Louis, 2013, The genus Cyphoderopsis Carpenter (Collembola: Paronellidae) in Thailand and a faunal transition at the Isthmus of Kra in Troglopedetinae, Zootaxa 3721 (1), pp. 49-70 : 50

Diagnosis of Cyphoderopsis Carpenter, 1917

Type species: Cyphoderopsis kempi Carpenter, 1917

Medium sized Paronellidae of 0.8 to 2.5 mm. Body colour usually white or weakly pigmented. Habitus rather broad, antennae shorter than body. Eyes usually absent but ocular patch and well-developed eyes can be found in some species (0+0 to 6+6 eyes). Scales generally absent on legs, present on antenna, head, body and furca (but distribution of scales unknown in the type species), in particular furca heavily clothed with scales and chaetae. Antennae with 4 segments, Ant.I the shortest and Ant.IV the longest; Ant.IV not subdivided. Tenent hair either pointed or clavate. Claw with 0–2 inner teeth. One ( ceylonica group) or two ( kempi group) row(s) of dental spines. Fourth abdominal segment 3 to 7 times as long as the third measured along dorsal axis. Furca well developed, about 1.8 to 2.8 times as long as body. Mucro rather stout, straight, normally with 3 main teeth, the apical one blunt, the subapical one small and acute, the dorso-basal one acute and longer with 0–5 toothlets basally ( C. decemoculata has also one lateral tooth, Prabhoo 1971).

The subdivision of Ant.IV in two subequal subsegments is presently the only character that separates Troglopedetes from Cyphoderopsis where Ant.IV is entire. The similarity of the two genera is supported by most other characters, but the monophyly of Cyphoderopsis is questionable.