Table 1 in First record of the genus Spinaethorax Papáč & Palacios-Vargas, 2016 (Collembola, Neelipleona, Neelidae) in Asia, with a new species from a Vietnamese cave

Table 1. Differential characters for the three species of the genus Spinaethorax. S. tonoius after Palacios-Vargas & Sanchez (1999) and Papáč & Palacios-Vargas (2016), S. spinotricosus after Papáč & Palacios-Vargas (2016).
S. adamantis sp. nov.S. tonoiusS. spinotricosusHead Number of chaetae: postero-dorsal area / postero-lateral area12+12 (5+5 lanceolate) / 3+312+12 (1+1 lanceolate) / 2+210+10 (4+4 lanceolate) / 2+2Number of chaetae: antero-dorsal area / antero-lateral area10+10 + 2 unpaired / 5+5? /?9+9 + 1 unpaired / 2+2Lanceolate chaetae relative sizeIL1> IL2 ~ IL4 ~ IL5> IL3N/AIL1> IL2> IL4> IL5Antenna Ant. III14 chaetae (6 below S4), S2, S3, S4 long and tubular12 chaetae (5 below S4), S2 and S3 short, S4 globular15 chaetae (7 below S4), S2 and S3 short, S4 globularAnt. IV14 chaetae (including 5 with slight modification), 12 S-chaetae S11 chaetae, 9 S-chaeta S13 chaetae, 13 S-chaetae STrunk Th. II dorsal area—number of thickened or lanceolate chaetae4+4?(3+3–4+4)6+6Abd. I–V terga chaetotaxyranging from 27+27 to 31+32 chaetae?(>25 + 25 chaetae)?(3 + 3 chaetae) +>80 spine-like microchaetaeAbd. VI tergum—chaetal morphologythickened?thinLegs Leg I (subcoxa 1–tibiotarsus)1, 1, 1, 4, 9, 131, 1,?, 3, 8, 121, 1, 1, 4, 8, 13Leg II (subcoxa 1–tibiotarsus)1, 1, 1, 3, 8, 141, 1,?, 2, 7, 121, 1, 1, 3, 8, 14Leg III (subcoxa 1–tibiotarsus)2, 1, 2, 4, 8, 131, 1,?, 3, 7, 83, 1, 2, 3, 8, 13Subcoxa 2 III and coxa III chaetae morphologythickened?ordinaryUnguis IIIla absent? la absentla presentFurca Proximal part of dens, number of chaetae (adult)12 (after Papáč & Palacios-Vargas 2016)2