Spatulaphorus Rack 1993
Creators: name: Khaustov, Alexander A.
name: Frolov, Andrey V.
name: Akhmetova, Lilia A.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Pygmephoridae
Spatulaphorus

description: Key to world species of Spatulaphorus (based on Khaustov & Frolov 2018)
1. Genu I with two setae................................................................................. 2
- Genu I with one seta................................................ S. copridis Khaustov, 2007a (Crimea, Iran)
2. Alveoli of setae ps1 and ps2 contiguous; tarsus IV with six setae (pl” present).................................... 3
- Alveoli of setae ps1 and ps2 clearly separated; tarsus IV with five setae (pl” absent)....... S. reductus sp. nov. (Argentina)
3. Seta pl” of tarsus III spiniform.......................................................................... 4
- setae pl” of tarsus III not modified...................................................................... 12
4. Seta tc’ of tarsus III spiniform........................................................................... 5
- Seta tc’ of tarsus III not modified........................................................................ 9
5. Claws on tarsi II and III distinctly thickened basally; tibiotarsus I thick, distinctly wider than genu I................... 6
- Claws on tarsi II and III not thickened basally; tibiotarsus I cylindrical, as wide as genu I............................ 7
6. Setae c1 and c2 subequal in length; setae h1 longer than distance between their bases...................................................................................... S. inbricatipes (Mahunka, 1980) comb. nov. (Argentina)
- Setae c1 distinctly shorter than c2; setae h1 distinctly shorter than distance between their bases S. spinisetus sp. nov. (Brazil)
7. Setae sc2 not modified, setiform......................................................................... 8
- Setae sc2 foliate............................................. S. vladimiri Khaustov, 2005 (Ukraine, Crimea, Iran)
8. Setae d, f, and h1 foliate, setae ps3 slightly longer than ps1-2 ............ S. venustus Khaustov and Trach, 2012 (Ukraine)
- Setae d, f, and h1 not foliate, setae ps3 at least twice longer than ps1-2 ... S. altaicus Khaustov and Trach, 2018 (Russia: Altai)
9. Claws on tarsi II and III distinctly thickened basally; tibiotarsus I thick, distinctly wider than genu I.................. 10
- Claws on tarsi II and III not thickened basally; tibiotarsus I cylindrical, as wide as genu I.............................................................................. S. gorganica Rahiminejad and Hajiqanbar, 2011 (Iran, Crimea)
10. Alveoli of setae e and f as well as h1 and h2 clearly separated; setae ps1-2 smooth; seta pl” of tarsus IV about twice longer than maximum width of tarsus IV........................................................................... 11
- Alveoli of setae e and f as well as h1 and h2 contiguous; setae ps1-2 barbed; seta pl” of tarsus IV about as long as maximum width of tarsus IV................................................. S. mexicanus Trejo-Palacios, 2023 (Mexico)
11. Dorsal idiosomal setae short; setae c1, f, and h1 shorter than distances between their bases... S. brevisetosus sp. nov. (USA)
- Dorsal idiosomal setae long; setae c1, f, and h1 longer than distances between their bases.... S. longisetosus sp. nov. (USA)
12. Seta tc’ of tarsus III spiniform.......................................................................... 13
- Seta tc’ of tarsus III not modified....................................................................... 14
13. Tibiotarsus I with a small, almost straight claw, and no counterpart........ S. foliatus Dastych and Rack, 1993 (Botswana)
- Tibiotarsus I with large, hook-like claw and a distinct counterpart opposite to the claw base............................................................................................ S. langi Dastych and Rack, 1993 (Vietnam)
14. Seta tc’ of tarsus II spiniform and curved................................................................. 15
- Seta tc’ of tarsus II not modified........................................................................ 17
15. Setae e situated distinctly posteriad setae f ................................................................ 16
- Setae e situated slightly anteriad setae f ..................................... S. venezuelaensis sp. nov. (Venezuela)
16. Idiosomal tergites with big puncta (Fig. 7A).................... S. porosus Khaustov and Frolov, 2021 (French Guiana)
- Idiosomal tergites only with tiny puncta (Fig. 1A)................ S. dignus Khaustov and Frolov, 2021 (French Guiana)
17. Distances between setae h1-h1 and h1-h2 subequal......................................................... 18
- Distances between setae h1-h1 much greater than h1-h2 ..................................................... 20
18. Setae ps3 subequal to or shorter than ps1-2 ............................................................... 19
- Setae ps3 distinctly longer than ps1-2 ....................... S. luriei Dastych, Rack and Camerik, 1997 (South Africa)
19. Setae (pv) on tarsus III foliate, setae ps1-2 distinctly barbed..... S. enoplotruporum Khaustov and Frolov, 2018 (Thailand)
- Setae (pv) on tarsus III not foliate, setae ps1-2 smooth................. S. camerikae Dastych and Rack, 1993 (Botswana)
20. Apodemes 4 long, extending beyond setae 3b; apodemes 3 weakly developed.................................... 21
- Apodemes 4 vestigial; apodemes 3 well developed between bases of setae 3a and trochanter III.......................................................................................... S. geotruporum Khaustov, 2005 (Ukraine)
21. Tibiotarsus I thickened, almost ovoid in shape and distinctly wider than genu I................................... 22
- Tibiotarsus I cylindrical, subequal in width with genu I........................ S. geotrupi (Mahunka, 1970) (Hungary)
22. Apodemes 5 short, weakly sclerotized................................................................... 23
- Apodemes 5 long, thick and well sclerotized, extending beyond bases of trochanter IV................................................................................................ S. madagascariensis sp. nov. (Madagascar)
23. Setae ps3 subequal with ps1-2 .......................................................................... 24
- Setae ps3 more than twice longer than ps1-2 ........................ S. gymnopleuri Sobhi and Hajiqanbar, 2017 (Iran)
24. Posterior margin of posterior sternal plate deeply incised; setae ps1-2 weakly barbed.......... S. incisus sp. nov. (Brazil)
- Posterior margin of posterior sternal plate only slightly concave; setae ps1-2 smooth... S. braziliensis Khaustov and Frolov, 2017 (Brazil, French Guiana)
description: Published as part of Khaustov, Alexander A., Frolov, Andrey V. & Akhmetova, Lilia A., 2024, Seven new species of Spatulaphorus Rack (Acari: Pygmephoridae) phoretic on scarab beetles (Coleoptera: Scarabaeidae), pp. 337-368 in Zootaxa 5497 (3) on pages 365-366, DOI: 10.11646/zootaxa.5497.3.2, http://zenodo.org/record/13618611