TABLE 3 in Arrhopalites colchicus sp. nov. (Collembola: Symphypleona: Arrhopalitidae), the third highly troglomorphic species of the genus from the Caucasus

TABLE 3. Differences between highly troglomorphic Arrhopalites species of the Caucasus Character (females) / speciesA. colchicus sp. nov.A. macronyxA. profundusBody size of adults0.9 mm1.1–1.3 mm0.9–1 mmAnt I setae766Ant IV subsegments6 (7 in male)7(8)7Ant III sensory rods (length)11.6 μm10–13 μm15.2 μmHead dorsum axial setae344Eyesnot detectablenot detectable/uncertain1+1 (very small)Femur II setae131213Tibiotarsus III: whorl V setae77(6)6Claw I inner tooth––+ (minute)Claw II inner tooth––+ (minute)Empodium III corner tooth–++Total body/claw I (troglomorphy index)9.98.5–9.86.6–7.4Abd VI dorsal valve setae11+2+11; ms5 present10+2+10; ms5 absent10+2+10; ms5 absentAbd VI lateral valve setae16+16; mpi2 absent17+17; mpi2 present15+15; mpi2 presentCircumanal setae on Abd VIordinarybroadened, serrated and finely denticulatedordinaryAppendices analessmooth, apically curved and acuminatesmooth, apically curved and acuminateapically denticulated, not acuminateDens posterior setae16(15)16(15)14Mucro: teeth of posterior lamellaepartly accretedpartly accretedcompletely accreted