Hypoaspis

Joharchi, Omid, Ostovan, Hadi & Babaeian, Esmaeil, 2014, A new species of Hypoaspis Canestrini from Iran (Acari: Laelapidae), with a key to the species occurring in the Western Palaearctic Region, Zootaxa 3846 (4), pp. 569-576 : 574

Key to species of Hypoaspis occurring in the Western Palaearctic

1. Seta st1 long (reaching beyond base of st2)................................................................. 2

- Seta st1 short (at most reaching base of st2)................................................................. 8

2. Seta ad1 on genu IV being only slightly longer than the remaining setae on the segment.............................. 3

- Seta ad1 on genu IV longer (two or three times longer) (macroseta) than the remaining setae on the segment............. 4

3. Podonotal seta j3 not long, only reaching base of next posterior j4 but never past it, seta pd3 on tarsus IV short........................................................................................... Hypoaspis elegans sp. nov.

- Podonotal seta j3 long, long enough to reach past base of j4, seta pd3 on tarsus IV long (macroseta).... Hypoaspis pentodoni

4. Dorsal shield setae long; central opisthonotal setae extending beyond base of respective subsequent setae.................................................................................................. Hypoaspis phyllognathi

- Dorsal shield setae shorter, central opisthonotal setae reaching at most base of respective subsequent setae............... 5

5. Setae z5 and z4 long enough to reach past z6.............................................. Hypoaspis alborzensis

- Setae z5 and z4 not long enough to reach past z6, sometimes reaching base of z6 but never past it...................... 6

6. Seta Z4 almost as long as dorsal shield...................................................... Hypoaspis terrestris

- Seta Z4 much shorter than dorsal shield.................................................................... 7

7. Dorsal shield with 22 pairs of setae on podonotal region and 13 pairs on opisthonotal region................... H. zaheri

- Dorsal shield with 19 pairs of setae on podonotal region and 16 pairs on opisthonotal region............... H. polyphyllae

8. Only ad1 on genu IV longer than remaining setae on the segment............................................... 9

- Setae ad1 and pd1 on genu IV longer than remaining setae on the segment....................................... 13

9. Sternal shield longer than wide................................................................ H. neokrameri

- Sternal shield wider than long or at most equal.............................................................. 10

10. Setae J4 long enough to reach or exceed base of J5 .......................................................... 11

- Setae J4 short, not reaching base of J5 .................................................................... 12

11. Setae j6 long enough to reach past J1 ............................................................ H. stammeri

- Setae j6 not long enough to reach past J1........................................................... H. krameri

12. Setae Z4 longest seta on opisthonotal region.............................................. Hypoaspis rhinocerotis

- At least two other setae on opisthonotal region as long as setae Z4 ..... H. campestris ( Berlese, 1887) sensu Bregetova, 1977

13. Tibia IV with 11 setae (2 2/1 3/1 2).............................................................. H. larvicolus

- Tibia IV with 10 setae (2 1/1 3/1 2)...................................................................... 14

14. Two long setae (macrosetae) on genu III (ad1 and pd1)............................................ H. melolonthae

- Seta ad1 on genu III slightly longer than the remaining setae on the segment..................................... 15

15. Four long setae (macrosetae) on tarsus IV (ad2, pd2, ad3 and pd3)..................................... H. maryamae

- Three long setae (macrosetae) on tarsus IV (ad2, pd2 and pd3).......................................... H. integer