Table 2.
Diagnostic characters (C1–C22) for the separation of the species of Pseudosinella that share the dorsal macrochaetotaxy formula with the new species.
| Species | C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 | C11 | C12 | C13 | C14 | C15 | C16 | C17 | C18 | C19 | C20 | C21 | C22 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P. alpina | 3* | 1* | 2 | 2 | 4 | 2 | 2 | 2 | 1* | 1 | 3 | 1* | 2 | 3* | 3 | 5–7* | 1 | 2.4* | U | 32–36* | 1.7–2.0 | 3* | 9 |
| P. astronomica | U | 1* | 4 | 2 | 4 | 2 | 2 | 2 | 1* | 1 | 3 | 1* | 1 | 3* | U | U | 1 | 1.85* | U | 60* | 1.4* | U | 7 |
| P. christiani | 1* | 0* | 2–4 | 2 | 4 | 2 | 2 | 2 | 1* | 1 | 3 | 1* | 1 | 3* | U | U | 1 | 1.5* | U | 35* | 1.5* | 1 | 8 |
| P. goughi | 1* | 6–7* | 2–4 | 2 | 4 | 2 | 2 | 2 | 2 | 1 | 2* | 2 | 1 | 3* | U | U | 1 | 1.9* | 25–30 | – | 1.7–1.8* | U | 6 |
| P. mucronata | 1* | 5–6 | 2 | 2 | 4 | 2 | 2 | 2 | 1* | 1 | 3 | 1* | 1 | 2* | U | U | 1 | 2* | U | 60* | 1.8–2* | U | 7 |
| P. suboculata | 2 | 5–6 | 4 | 2 | 4 | 2 | 2 | 2 | 2 | 2* | 3 | 2 | 1–2 | 2* | U | U | 3* | 2.5* | 35 | 70* | 1.7–1.8* | 2 | 6 |
| P. superoculata | 1* | 6* | 4 | 2 | 4 | 2 | 2 | 2 | 2 | 1 | 3 | 1* | 1–2 | 3* | 3* | 9–10 | 1 | 2.3* | 30 | 45–50 | 2.1–2.3 | 2 | 6 |
| P. thibaudi | U | 2* | 4 | 2 | 4 | 2 | 2 | 4* | 1* | 1 | 3 | 1–2 | 1 | U | 2 | 2–3* | 2* | 1.3* | U | 70* | 1.3–1.4* | U | 8 |
| P. vandeli relicta | 1* | 0* | 4 | 2 | 4 | 2 | 2 | 2 | 1* | 1 | 3 | 1* | 2 | 3* | U | U | 1 | U | U | 30–37 | 1.5* | 2 | 6 |
| P. altamirensis sp. nov. | 2 | 5 | 2–4 | 2 | 3–4 | 2 | 2–4 | 2 | 2 | 1 | 3 | 2 | 1–2 | 1 | 2 | 7–12 | 1 | 3.1 | 35 | 40 | 2.16 | 2 | – |
Legend. C1: apical organ of third antennal segment: (1) peg or rod-like, (2) expanded. C2: number of eyes per side. C3: M1 < ventral labial chaeta > shape: (2) smooth Mc, (3) ciliated mic or mes, (4) ciliated Mc. C4: M2 < ventral labial chaeta > shape: (2) smooth Mc. C5: R < ventral labial chaeta > shape: (3) ciliated mic or mes, (4) ciliated Mc. C6: E < ventral labial chaeta > shape: (2) smooth Mc. C7: L1 < ventral labial chaeta > shape: (2) smooth Mc, (4) ciliated Mc. C8: L2 < ventral labial chaeta > shape: (2) smooth Mc. C9: Abd IV supplementary seta s: (1) absent, (2) present. C10: tenent hair shape: (1) acuminate, (2) clavate. C11: claw total teeth number. C12: claw wing tooth: (1) absent, (2) present. C13: empodium appendage wing tooth: (1) smooth, (2) minute. C14: empodium appendage shape: (1) acuminate, (2) truncate, (3) basally swollen. C15: inner chaeta on manubrial plate, number. C16: outer chaeta on manubrial plate, number. C17: habitat: (1) cave, (2) surface, (3) both cave and surface. C18: maximum length, in mm. C19: distance distal paired claw tooth from base/total claw, %. C20: distance distal unpaired claw tooth from base/total claw, %. C21: Antennae/head ratio. C22: differentiated inner chaeta on hind tibiotarsus: (1) unclear or absent, (2) clear, acuminate, (3) clear, truncate or clavate. D: accumulated differences. “*”, difference with P. altamirensis sp. nov. “U”, unknown. “-“, not applicable.