Pediculaster Khaustov, 2015, sp. nov.

• Main Author: Khaustov, Alexander A.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Kramer; New Zealand; Vestnik; Mite; Siberia
• Online Access: https://dx.doi.org/10.5281/zenodo.6122724; https://zenodo.org/record/6122724

Key to phoretic females of the genus Pediculaster of Palaearctic ( Pediculaster limosinae Samsinak, 1984 is not separable from P. sellnickianus and is probably a junior synonym of P. sellnickianus Pediculaster incompletus Samsinak, 1984 is not separable from P. morelliae and is probably a junior synonym of P. morelliae ) 1. Coxal fields I with 2 pairs of setae (1 c absent)............................................................. 2 - Coxal fields I with 3 pairs of setae....................................................................... 5 2. Apodemes 5 well-developed........................................................................... 3 - Apodemes 5 absent.................................................... P. minagarici Gao and Zou, 2000. China 3. Dorsal hysterosomal setae relatively short: setae d distinctly shorter than distance d–d .............................. 4 - Dorsal hysterosomal setae very long: setae d distinctly longer than distance d–d ........ P. arcanus (Rack, 1967). Germany 4. Setae e and h 2 subequal, setae v 1 more than three times longer than v 2............ P. subarcanus Gao and Zou, 2000. China - Setae e about 3 times longer than h 2, setae v 1 less than 2 times longer than v 2.. P. ermilovi sp. nov . Russia (Western Siberia). 5. Setae ( u ) of tibiotarsus I fused together forming structure opposing to tarsal claw.................................. 6 - Setae ( u ) of tibiotarsus I separated, spine-like....... P. amerahae Sevastianov and Abo-Korah, 1984. Egypt, Turkmenistan 6. Coxal fields II with 2 pairs of setae...................................................................... 7 - Coxal fields II with 3 pairs of setae..................................................................... 13 7. Setae h 2 shorter than h 1................................................................................ 8 - Setae h 2 about 2 times longer than h 1........................................... P. m a n i c a t u s (Berlese, 1904). Italy 8. Setae v 1 and v 2 subequal............................................................................... 9 - Setae v 1 longer than v 2............................................................................... 10 9. Apodemes 5 long, reaching almost to bases of setae 4 b , setae e about 5 times longer than h 2.................................................................................................. P. athiasae (Wicht, 1970). Palaearctic - Apodemes 5 short, reaching bases of setae 4 a , setae e about 3 times longer than h 2...................................................................................... P. sterculinicola Sevastianov, 1981. Ukraine, Russia (Crimea). 10. Empodia on tarsi II and III with rounded tips, setae f shorter or subequal to h 1................................... 11 - Empodia on tarsi II and III with pointed tips, setae f much longer than h 1................ P. m e n d l i Rack, 1976. Germany 11. Setae f and h 1 subequal............................................................................... 12 - Setae f distinctly shorter than whip-like h 1....................................... P. w e i d n e r i Rack, 1976. Germany 12. Solenidion φ 1 situated close to ω 1............................. P. pfefferianus Samsinak, 1984. Spain, Russia (Crimea) - Solenidion φ 1 situated close to φ 2.................................... P. muraiae Mahunka and Zaki, 1984. Hungary 13. Setae tc” of tarsus IV situated on distinct protuberance..................................................... 14 - Setae tc” of tarsus IV not on protuberance............................................................... 15 14. Setae h 1 long, whip-like, much longer than f .............................. P. calcaratus (Mahunka, 1965). Palaearctic - Setae h 1 short, blunt-ended, subequal to f .............................. P. ensifer (Savulkina, 1978). Bulgaria, Ukraine 15. Three pairs of pseudanal setae......................................................................... 16 - Two pairs of pseudanal setae.................................. P. turkiensis (Ramaraju and Madanlar, 1997). Turkey 16. Setae ps 3 distinctly longer than ps 2...................................................................... 17 - Setae ps 2 distinctly longer than ps 3....................................................................... 27 17. Setae ps 1 and ps 2 subequal............................................................................ 18 - Setae ps 1 distinctly shorter than ps 2.............................. P. sklarii Sevastianov and Chydyrov, 1994. Ukraine 18. Setae v 1 subequal to or longer than v 2.................................................................... 19 - Setae v 1 distinctly shorter than v 2.......................... P, hungaricus Mahunka and Zaki, 1982. Hungary, Ukraine. 19. Setae v 1 distinctly longer than v 2........................................................................ 20 - Setae v 1 subequal to v 2............................................................................... 21 20. Setae 2 b about 2 times longer than 2 a .................................... P. j a n v a r y o r u m Mahunka, 1986. Hungary. - Setae 2 b extremely long, more than 3 times longer than 2 a ................... P. mongolicus Mahunka, 1970. Mongolia 21. Setae e and h 2 subequal.............................................................................. 22 - Setae e distinctly longer than h 2........................................................................ 23 22. Setae 2 b much longer than 2 a .............................................. P. dudichi Mahunka, 1970. Hungary - Setae 2 b and 2 a subequal................................................... P. ignotus (Krczal, 1959). Germany 23. Setae 2 b not longer, or slightly longer than 2 a ............................................................. 24 - Setae 2 b about 4 times longer than 2 a ............... P. chistyakovi Khaustov and Ermilov, 2008. Russia (European part) 24. Bases of setae h 1 situated very close to bases of h 2......................................................... 25 - Bases of setae h 1 and h 2 distinctly separated from each other................................................. 26 25. Apodemes 5 present, solenidion φ 1 situated closer to setae p” than to solenidion φ 2.... P. dudinskii Khaustov, 2011. Ukraine - Apodemes 5 absent, solenidion φ 1 situated close to solenidion φ 2... P. zachvatkini (Savulkina, 1978). Russia (European part) 26. Setae 3 a , 3 b , and 4 a short, not reaching bases of subsequent posterior setae.... P. similis Mahunka, 1975. Balkan Peninsula - Setae 3 a , 3 b , and 4 a long, reaching bases of subsequent posterior setae............. P. altaicus Mahunka, 1969. Mongolia 27. Hysterosomal tergites without longitudinal wrinkles........................................................ 28 - Hysterosomal tergites with distinct longitudinal wrinkles................. P. rugosus Mahunka, 1973. Ukraine, Mongolia 28. Setae 2 a not longer than 2 b ........................................................................... 29 - Setae 2 a much longer than 2 b ............... P. sellnickianus (Rack, 1964). Central and Eastern Europe, Russia (Crimea) 29. Setae 2 b distinctly longer than 2 a ...................................................................... 30 - Setae 2 b and 2 a subequal............................................................................. 31 30. Stigmata 1 -chambered................................................ P. portatus (Martin, 1978). Cosmopolitan - Stigmata 2 -chambered............................................... P. muscarius (Martin, 1978). Cosmopolitan 31. Empodia on tarsi II and III distinctly thickened distally, relatively short........................................ 32 - Empodia on tarsi II and III long and narrow................................. P. meszarosi Mahunka, 1973. Mongolia 32. Setae f longer than e ................................................................................. 33 - Setae f and e subequal................................................. P. morelliae Rack, 197 1 4. Cosmopolitan 33. Setae v 1 at least 2.5 times longer than v 2.................................................................. 34 - Setae v 1 no more than 1.5 times longer than v 2............................................................. 37 34. Stigmata 1 -chambered............................................................................... 35 - Stigmata 2 -chambered................................................. P. m a ly i Samsinak, 1989. Slovakia, Iran 35. Apodemes 5 absent.................................................................................. 36 - Apodemes 5 present.................................................. P. kneeboni (Wicht, 1970). Cosmopolitan 36. Setae ps 1 and ps 3 subequal, tibiotarsus I about 3 times longer than its width.. P. camerikae Khaustov, 2008. Russia (Crimea) - Setae ps 1 longer than ps 3, tibiotarsus I about 1.5 times longer than its width..... P. eccoptomeralis Camerik, 2010. Belgium 37. Solenidion φ 1 situated laterally between bases of setae pl” and l” ............................................. 38 - Solenidion φ 1 situated close to solenidion φ 2 or ω 1.......................................................... 41 38. Setae c 1 shorter or subequal to d ........................................................................ 39 - Setae c 1 longer than d .............................................. P. confusus Khaustov, 2008. 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