Hexabdella

Eghbalian, Amir Hossein, Khanjani, Mohammad, Safaralizadeh, Mohammad Hassan & Ueckermann, Edward A., 2016, New species of Hexabdella and Neomolgus (Acari: Prostigmata: Bdellidae) from Iran, Zootaxa 4072 (2), pp. 291-300 : 299

Key to adult female Hexabdella of the world (modified from Van der Schyff et al. 2004) and to Neomolgus of Asia ( Iran, Japan, Uzbekistan) and the Siberian region of Russia

1. Tibia II without trichobothria, each chelicera with two setae.................. Bdellinae… Hexabdella Van der Schyff …2

- Tibia II with trichobothria, each chelicera with more than 2 setae........... Odontoscirinae … Neomolgus Oudemans …11

2. Opisthosomal setae distally branched...................................................................... 3

- Opisthosomal setae smooth or slightly plumose.............................................................. 5

3. Dorsal striae coarsely to sparsely broken; seta ps1 smooth; coxa IV without macroseta.............................. 4

- Dorsal striae finely broken; seta ps1 branched; coxa IV with a serrated macroseta.............................................................................................. H. denheyeri Van der Schyff, Theron & Ueckermann

4. Marginal striae of hysterosoma with lobes, visible as dashed lines............... H. cinquaginta Hernandes, Daud & Feres

- Marginal striae of hysterosoma smooth............................ H. singula Van der Schyff, Theron & Ueckermann

5. Eyes present......................................................................................... 6

- Eyes absent................................................. H. maraugia Van der Schyff, Theron & Ueckermann

6. Two pairs of eyes present; chelicerae striated............................................................... 7

- One pair of eyes present; chelicerae smooth...................... H. unusoculata Van der Schyff, Theron & Ueckermann

7. Palp basifemur with five or six setae...................................................................... 8

- Palp basifemur with four setae........................................................ H. brevitarsis Hernandes

8. Palp basifemur with five setae........................................................................... 9

- Palp basifemur with six setae.......................... H. persiaensis Paktinat Saeej, Bagheri, Saboori & Ueckermann

9. Solenidotaxy of tibiae I–IV 3–2 –1–0..................................................................... 10

- Solenidotaxy of tibiae I– IV 1–1 –1–0............................. H. miranda Van der Schyff, Theron & Ueckermann

10. Coxa II with four setae; basifemura II and IV with seven and fivesetae; genu IV with 4 setae (1 s); fixed digit two thirds the length of movable digit......................................................... H. mexicana ( Baker & Balock)

- Coxa II with three setae; basifemura II and IV with eight and four setae; genu IV with five setae (1 s); fixed digit as long as movable digit................................ H. quercusi Eghbalian, Khanjani, Safaralizadeh & Ueckermann sp. nov.

11. Palp genu with four setae..............................................................................12

- Palp genu with ten setae............................................................ N. longipalpus Kuznetsov

12. Palp tibiotarsus with 8–14 setae......................................................................... 13

- Palp tibiotarsus with more than 20 setae....................................................... .. N. littoralis (L.)

13. Chelicerae with 7–11 setae............................................................................. 14

- Chelicerae with 21 setae...................... N. iraniensis Eghbalian, Khanjani, Safaralizadeh & Ueckermann sp. nov.

14. Palp basifemur with four setae.......................................................................... 15

- Palp basifemur with five to seven setae................................................................... 16

15. Palp tibiotarsus with eight setae (including end setae); chelicerae with seven setae........... N. raptor Kuznetsov & Barilo

- Palp tibiotarsus with nine setae (including end setae); chelicerae with eight setae.................... N. pygmaeus Shiba

16. Prodorsum without distinct dorsal shield.................................................................. 17

- Prodorsum with distinct dorsal shield....................................................... N. clypeatus (Thor)

17. Chelicerae with nine setae; palp basifemur with 5–6 setae........................................... N. pallipes (L.)

- Chelicerae with 11 setae; palp basifemur with 7 setae....................................... N. capillatus (Kramer)