Pentamerismus

Khanjani, Mohammad & Gotoh, Tetsuo, 2008, False spider mites of the genus Pentamerismus McGregor (Acari: Tenuipalpidae) from Iran, Zootaxa 1768, pp. 52-60 : 53-54

Key to species of Pentamerismus of the world –Females

1. Hysterosoma with 7 pairs of dorso-lateral setae.................................................... ( P. oregonensis group) 2

- Hysterosoma with 8 pairs of dorso-lateral setae...................................................... ( P. erythraus group) 11

2. With three pairs of pseudoanal setae ...........................................................................................................3

- With two pairs of pseudoanal setae ................................................................ P. collinus Meyer & Van Dis

3. Dorsolateral setae of hysterosoma setiform.................................................................................................4

- Dorsolateral setae of hysterosoma broadly spatulate to leaf-like ................................................................5

4. Dorsum evenly striate ........................................................................... P. tauricus Livshitz & Mitrrofanov

- Dorsum irregularly reticulate................................................................................................. P. t a x i (Haller)

5. Genua I and II each with 2 setae.................................................................. P. shandongensis Wang & Ma

- Genua I and II each with 3 setae..................................................................................................................6

6. Palp tibia with one setae ..............................................................................................................................7

- Palp tibia with two setae ..............................................................................................................................9

7. Idiosoma completely reticulate................................................................... P. assianensis Thewke & Enns

- Idiosoma completely reticulate or partly striate ..........................................................................................8

8. Palp femur with one seta; femur I with dorsal seta broadly lanceolate................. P.canadensis McGregor

- Palp femur without a seta; femur I with dorsal seta setiform or narrowly lanceolate ................................... ............................................................................................................... P. coronatus Cnestrini & Fangazo

9. Propodosoma with anterior margin rounded; hysterosoma with dorsocentral setae spatulate...................... ........................................................................................................................................... P. re t u s u s Meyer

- Propodosoma emarginate anteriorly; hysterosoma with dorsolateral setae setiform ................................10

10. First, ve and second, sci pairs of propodosoma setae broadly lanceolate................... P.judiciarus De Leon

- All three pairs of propodosoma setae narrow and setiform................................. P. oregonensis McGregor

11. Femora I–II with three setae ............................................................................. P. kunmigensis Ma & Yaun

- Femora I–II with four setae .......................................................................................................................12

12. Anterior margin of prodorsum convex and shallowly notched .................................................................13

- Anterior margin of prodorsum convex and deeply notched ......................................................................14

13. Palp tibia with seta; propodosomal setae slender ............................................. P. a r b u t u s a e Baker & Tuttle

- Palp tibia without seta; propodosomal setae spatulate or leaf-like.................... P.abnormis Baker & Tuttle

14. First pair of dorsocentrals, c1, and dorso-sublateral seta c2, minute or setiform........................................15

- First pair of dorsocentral stae c1 and dorso-sublateral setae c2, broad spatulate ........................................... ............................................................................................................... P. foliisetis Livshitz & Mitrofanov

15. Propodosomal setae broadly spatulate or leaf like.....................................................................................16

- Propodosomal setae setiform.................................................................................. P. ueckermanni sp.nov.

16. Prodorsum completely areolate-rugose, intercoxal area with transverse lines, genital setae much longer than aggenital setae..................................................................................................... P. erythraus (Ewing)

- Prodorsum partially lineate, areolate, intercoxal area smooth, genital setae as long as aggenital setae ..17

17. Second pair of dorsocentral setae, d1 and dorso-sublateral setae c2 and d2 slightly long and with acute setae, median part of prodordorsum completely lineate..................................................... P. j u n i p e r i Reck

- Second pair of dorsocentral setae, d1 and dorso sublateral setae c2 and d2 very short and minute, median part of prodordorsum smooth, genital shield with transverse striation ................ P. behshahricus sp. nov.