Troglopedetes species

Cipola, Nikolas Gioia & Greenslade, Penelope, 2023, A new species of Troglopedetes Joseph, 1872 with eyes (Collembola, Paronellidae) from a Christmas Island Cave, Australia, Zootaxa 5239 (4), pp. 563-577 : 573

Key to Troglopedetes species with eyes

1 Unguis normal, inner tooth distant from base by one third or more; unguiculus inner lamella (ai) acuminate ( Fig. 4H )..... 2

- Unguis elongated (typically troglomorphic) with basal and medial teeth next to base; unguiculus inner lamella (ai) excavate............................................................................. T. churchillatus Wilson, 1979

2 Unguis III apical tooth (a.t.) present...................................................................... 3

- Unguis III apical tooth (a.t.) absent....................................................................... 5

3 Eyes 1–2 per side ( Fig. 2D ); Abd IV with 3 or fewer inner mac; mucro subproximal tooth (v2) larger than proximal tooth (v3) ( Fig. 5F )............................................................................................ 4

- Eyes 3 per side; Abd IV with 5 inner mac; mucro subproximal tooth (v2) smaller than proximal tooth (v3).............................................................................................. T. vanharteni Barra, 2006

4 Dens with 20–28 inner spines; mucro with 2 apical teeth (ap, v1)............. T. jeanneli ( Delamare-Deboutteville, 1945)

- Dens with 36–42 inner spines; mucro with 3 apical teeth (ap, v1, il) ( Fig. 5F )......... T. microps Deharveng & Gers, 1993

5 Eyes 1 per side....................................................................................... 6

- Eyes 2–3 per side..................................................................................... 8

6 Unguiculus outer lamella (pe) with one large tooth......................................... T. minor Hüther, 1983

- Unguiculus outer lamella (pe) excavate or with one small tooth ( Fig. 4H )........................................ 7

7 Unguiculus outer lamella (pe) excavate and toothless................................... T. schalleri ( Hüther, 1962)

- Unguiculus outer lamella (pe) acuminate and with 1 small tooth ( Fig. 4H )................. T. tridentatus ( Salmon, 1954)

8 Eyes 2 per side ( Fig. 2D ); basomedian labial field with R chaeta reduced to spine; sublobal plate with 1 appendix ( Fig. 2G ); Th II–III with m2 and a4 mac, respectively ( Fig. 3A ); Abd IV with 4 inner mac ( Fig. 3C ); unguis median tooth (m.t.) elongated, surpassing the apex of unguis ( Figs 4H–I )................................................. T. eberhardi sp. nov.

- Eyes 3 per side; basomedian labial field with R chaeta ciliate; sublobal plate with 2 appendages; Th II–III devoid of m2 and a4 mac; Abd IV with 2 inner mac; unguis median tooth (m.t.) short.......................... T. leclerci Deharveng, 1990

Figures

FIGURE 2A–G. Troglopedetes eberhardi sp. nov., head; A, right Ant IV (dorsal view); B, Ant III apical organ (lateral view); C, left Ant I (ventral view); D, dorsal head (left side); E, chaetotaxy of clypeus, prelabrum and labrum (dorsal view); F, labial papillae E (right side); G, proximal chaetae, basomedian and basolateral labial fields, maxillary palp and sublobal plate, and complete postlabial chaetotaxy (right side).

FIGURE 3A–C. Troglopedetes eberhardi sp. nov., dorsal chaetotaxy (left side); A, Th II–III; B, Abd I–III; C, Abd IV–V, gray spot indicates region with feces on Abd V, therefore chaetotaxy details is omitted.

FIGURE 4A–I. Troglopedetes eberhardi sp. nov., legs; A–C, chaetotaxy of left subcoxa I–III respectively (outer side); D– E, chaetotaxy of left trochanter I–II, respectively (anterior side), arrow indicate spine present or absent on trochanter II; F, trochanteral organ (posterior side); G, femur and tibiotarsus III (anterior side); H, distal tibiotarsus and empodial complex III (posterior view); I, unguis III (inner view).

FIGURE 5A–F. Troglopedetes eberhardi sp. nov., abdominal appendages; A, collophore (lateral view); B, latero-dorsal chaetotaxy of the manubrium and distally manubrial plate (lateral view), arrow indicate spine-like mac ciliate; C, distal manubrium (ventral view); D, manubrial plate (dorsal view); E, dens chaetotaxy (dorsal view), arrows indicate outer spine-like mac and inner spines; F, distal dens and mucro (inner view).