Antennal troglomorphy in Arrhopalitidae (Collembola: Symphypleona) with the description of two new cave Pygmarrhopalites Vargovitsh, 2009 species from the Arabika Massif in the Caucasus
Author
Vargovitsh, Robert S.
text
Zootaxa
2025
2025-08-07
5673
4
523
556
https://doi.org/10.11646/zootaxa.5673.4.3
journal article
312147
10.11646/zootaxa.5673.4.3
bac1bb01-04c5-4e61-9d47-50a01967360a
1175-5326
16982611
9AE749B4-1845-40A1-A9C4-AC94ACC7FABA
TABLE 3. Diagnostic characters distinguishing Pygmarrhopalites arbaicus sp. nov. from congeners in the principalis group with elongated antennae and dorsal head spiny setae.| Character / Species | arbaicus sp. nov. | carolynae | dbari | kovali | marshalli | skelicus |
|---|
| Body length (mm) | 1.5 | 1.5 | 1.1 | 1.0 | 1.7 | 1.3 |
|---|
| Eyes | 1+1 | 2+2 | 1+1 | 1+1 | 2+2 | 1+1 |
|---|
| Antenna/head | 2.4 | 1.9–2.4 | 3 | 2.3 | 1.9–2.5 | 2 |
|---|
| Spiny setae on head | 4+1+4 | 6+6 | 5+1+5 | 4+4 | 4+1+4 | 4+4 |
|---|
| Ant IV subsegments | 11 | 5 or 6 | 7 | 5 | 5 | 5(6,7) |
|---|
| Claw tunica I, II, III | – – – | + + + | – – – | – – – | – – – | – + + |
|---|
| Empodium tooth I, II, III | + + – | + + + | + + – | + + – | + + + | + + – |
|---|
| Emp tip/claw tip I, II, III | >> = | = = < | <<< | <<< | = = < | >>> |
|---|
| Manubrium setae | 7+7 | 6+6 | 7+7 | 7+7 | 6+6 | 7+7 |
|---|
| Spiny setae on dens (e+i) | 2+3 | 2+3 | 2+1 | 2+3 | 1(2)+1 | 2+3 |
|---|