Stigmaeus, Koch, 1836

Doğan, Sibel, Doğan, Salih & Erman, Orhan, 2017, Description of five new species of the genus Stigmaeus Koch (Acari: Raphignathoidea: Stigmaeidae) from Turkey, Zootaxa 4276 (4), pp. 451-478 : 477

Key to the species of Stigmaeus from Harşit Valley and Örümcek Forests ( Turkey)

1. Central shield present.................................................................................. 2

- Central shield absent.............................................................. S. pseudoparmatus sp. nov.

2. Central shield with two or three pairs of setae............................................................... 3

- Central shield without setae..................................................... S. devlethanensis Akyol & Koç

3. Central shield with three pairs of setae..................................................................... 4

- Central shield with two pairs of setae...................................................................... 6

4. Setae ag 1 and other aggenital setae on the same shield......................................................... 5

- Setae ag 1 situated on different shields................................................... S. longipilis (Canestrini)

5. Dorsal body setae similar.............................................................. S. livschitzi Kuznetsov

- Dorsal body setae dissimilar............................................................. S. solidus Kuznetsov

6. Post-ocular bodies present............................................................................... 7

- Post-ocular bodies absent............................................................ S. longiclipeatus sp. nov.

7. Aggenital shield undivided.............................................................................. 8

- Aggenital shield divided................................................................ S. pilatus Kuznetsov

8. Eyes present.......................................................................................... 9

- Eyes absent......................................................................................... 10

9. Dorsal shields with patterns, setae sce on the propodosomal shield........................ S. kelkitensis Dönel & Doğan

- Dorsal shields without patterns, setae sce on minute individual platelets......................... S. harsitensis sp. nov.

10. Dorsal body setae smooth, setae c 2 similar to other dorsal body setae............................... S. pricei Summers

- Dorsal body setae not smooth, setae c 2 dissimilar to other dorsal body setae....................................... 11

11. Setae ve smooth............................................................ S. uzunolukensis Özçelik & Doğan

- Setae ve barbed distally................................................................................ 12

12. Apodemal marking absent, setae vi clearly shorter than setae ve ..................................... S. fimus sp. nov.

- Apodemal marking present, setae vi and setae ve subequal in length.............................. S. communis sp. nov.