Pseudopygmephorellus (Females)

Katlav, Alihan, Hajiqanbar, Hamidreza & Talebi, Ali Asghar, 2015, Pseudopygmephorellus mazandaranicus sp. nov. (Acari: Heterostigmata: Pygmephoridae), phoretic on scarabaeid dung beetles (Coleoptera: Scarabaeidae) from Iran, Zootaxa 3919 (1), pp. 100-110 : 109

Key to world species of the genus Pseudopygmephorellus (Females)

1. Tarsus IV with claws; posterior margin of the prodorsum nearly straight......................................... 2

- Tarsus IV without claws; posterior margin of the prodorsum elongate and rounded (ligula-shaped)..................................................................................................... P. reductus Khaustov, 2008

2. Epimeral setae 1 a, 1 b, 2 a, 2 c modified and distinctly thickened basally........................................... 3

- Epimeral setae 1 a, 1 b, 2 a, 2 c unmodified and setiform........................................................ 4

3. Lateral parts of prodorsum with microsculpture; setae d and c 1 subequal; setae 3 a and 4 a distinctly thickened basally........................................................................ P. pinguisetus ( Mahunka and Philips, 1978)

- Lateral parts of prodorsum without microsculpture; setae d distinctly longer than c 1; setae 3 a and 4 a uniformly slender, not thickened basally........................................................... P. troxi Khaustov and Trach, 2014

4. Setae v 1 situated posterior to the level of setae v 2. ........................................................... 5

- Setae v 1 situated anterior to the level of setae v 2. ................................... P. artemjevi ( Sevastianov, 1981)

5. Apodemes 5 developed; solenidia ω 1, ω 2, φ 1 and φ 2 on TiTaI 10, 8, 7and 6 respectively; seta TaII tc' thickened, somewhat pilose, with blunt apex; seta FeIV v’ rod-like and blunt-ending........................... P. szekessyi ( Mahunka, 1970)

- Apodemes 5 considerably reduced; solenidia ω 1, ω 2, φ 1 and φ 2 on TiTaI 6, 3, 5 and 3 respectively; seta TaII tc' seta-like, with pointed apex; seta FeIV v’ seta-like and pointed........................................ P. mazandaranicus sp. nov.