Geholaspis (Geholaspis)

Babaeian, Esmaeil, Halliday, Bruce & Saboori, Alireza, 2015, A new species of Geholaspis Berlese (Acari: Mesostigmata: Macrochelidae) from Northern Iran, Zootaxa 3925 (3), pp. 422-430 : 428

Key to the known species of Geholaspis (Geholaspis) (adult females)

1. Seta j5 inserted at a level posterior to both z5 and j6 .......................................................... 2

- Seta j5 inserted at a level between z5 and j6 ................................................................. 3

2. Dorso-central setae (including j5, j6, z5, z6, J2 and J5) and pre-anal setae smooth and blade-like; seta J5 as long as Z5; epis- tome with long triangular base and short and dissected median process................. G. (G.) pauperior ( Berlese, 1918)

- Dorso-central setae (including j5, j6, z5, z6, J2 and J5) and pre-anal setae smooth and needle-like; seta J5 slightly longer than Z5; epistome with short triangular base and long and bifid median process................... G. (G.) pennulatus sp. nov.

3. Dorsal setae j6 and z6 short, much shorter than the distance j6-z6 ...................... G. (G.) biperforatus Krauss, 1970

- Dorsal setae j6 and z6 long, clearly longer than the distance j6-z6 ................................................ 4

4. Seta j1 with widely separated base; ventri-anal setae Zv1, Jv2 and Jv3 elongate................ G. (G.) berlesei Valle, 1953

- Seta j1 with adjacent base; ventri-anal setae Zv1, Jv2 and Jv3 not elongate........................................ 5

5. Ventri-anal shield only slightly wider than long, sternal shield longer than wide............ G. (G.) alpinus ( Berlese, 1887)

- Ventri-anal shield distinctly wider than long, ratio length:width at least 1.2:1; sternal shield wider than long or as long as wide.................................................................................................... 6

6. Dorsal setae j2 and s2 smooth, st1-st3 short, not reaching base of next posterior seta; movable digit bidentate; with a large backwardly directed tooth, a minute distal tooth, and a terminal hook; fixed digit with a large median tooth, a small blunt prox- imal tooth and a minute subdistal tooth, ventri-anal shield smoothly reticulate......... G. (G.) longispinosus ( Kramer, 1876)

- Dorsal setae j2 and s2 plumose, st1-st3 long, reaching base of next posterior seta; movable digit tridentate; with a large back- wardly directed tooth, a minute distal tooth, and a minute blunt proximal tooth, and a terminal hook; fixed digit with a forked distal tooth and about eight small proximal teeth, ventri-anal shield punctate-reticulate......... G. (G.) aeneus Krauss, 1970