Heteraphorura, Bagnall, 1948

Sh., Barjadze & G., Nebieridze, 2018, New recorded species of Heteraphorura Bagnall, 1948 (Collembola: Onychiuridae) from Georgia with a key to the Holarctic species, Caucasian Entomological Bulletin 14 (1), pp. 7-9 : 8

Key to the species of the genus Heteraphorura

1. Ant base with 4 pso ............................................................... 2

– Ant base with 2 or 3 pso ........................................................ 3

2. PAO with simple and bilobed vesicles. Cl without tooth. Pso formula dorsally: 40/011/11035 ................................ ....................................... H. magnina (Wray, 1950) ( USA)

– PAO with only simple vesicles. Cl with tooth. Pso formula dorsally: 40/011/11(0)02(3)3–5 ......................................... ............ H. bima (Christiansen et Bellinger, 1980) ( USA)

3. Emp rudimental. It length equal 1/4 or less of inner edge of Cl. Pso formula dorsally: 20/011/11023(2,4) ............... H. carpatica (Stach, 1954) ( Poland, Slovakia, Ukraine)

– Emp normal. It length more than inner edge of Cl ........... 4

4. PAO with granulated vesicles .............................................. 5

– PAO with only simple or simple and bi-, tri-lobed or simple and multilobed vesicles ..................................... 11

5. Ant bases with 2 pso .............................................................. 6

– Ant bases with 3 pso .............................................................. 8

6. Abd V with 2 pso. Abd VI with only m 2 seta. Pso formula dorsally: 20/011/11022 ....................................................... ......... H. pseudoseolagensis (Martynova, 1981) ( Russia)

– Abd V with 3–4 pso. Abd VI with m 1 and m 2 or only m 2 setae ..................................................................................... 7

7. Abd VI with 3 medial setae. Only m 2 setae present on the Abd VI. Pso formula dorsally: 20/011/11023 .............. H. iranica Kaprus’, Shayanmehr et Kahrarian, 2017 ( Iran)

– Abd VI with 2 medial setae. m 1 and m 2 setae present on the Abd VI. Pso formula dorsally: 20/011/11023(4) ....................... H. japonica kyotensis Yoshii, 1996 ( Japan)

8. Abd V with 1–2 pso. Pso formula dorsally: 30/011/1101(0)2(1) .............................................................. .......... H. longisetosus (Lee et Park, 1986) ( South Korea)

– Abd V with 3–4 pso ............................................................... 9

9. Abd IV with m 0 seta. Pso formula dorsally: 30/011/11023 ............ H. seolagensis (Lee, 1974) ( South Korea, Russia)

– Abd IV without m 0 seta ....................................................... 10

10. MVO absent. Pso formula dorsally: 30/011/11023(4) ..... ....................................... H. japonica (Yosii, 1967) ( Japan)

– MVO present on Abd sternum IV, consists of 2 + 2 clubshaped, ciliated chetae, located on papillae. Pso formula dorsally: 30/011/11023 ........................................ ...................................... H. imadatei (Yosii, 1956) ( Japan)

11. Emp with distinct basal lamella ...................................... 12

– Emp without distinct basal lamella ................................... 16

12. PAO with only simple vesicles. Pso formula dorsally: 20/011/1(0)1(0)023 .............................................................. ................................... H. subtenuis (Folsom, 1917) ( USA)

– PAO with simple and bi-, tri- or simple and multilobed vesicles .............................................................................. 13

13. PAO with 25–28 simple, bi- and trilobed vesicles. Male without MVO. VT with 13–19 setae apically. Pso formula dorsally: 20/011/11022 ....................................... ......................... H. orientalis (Martynova, 1976) ( Russia)

– PAO with 8–25 simple and multilobed or simple and bilobed vesicles. Male with MVO. VT with 7–8 or 8–8 setae apically .................................................................... 14

14. PAO with 17–25 simple and multilobed vesicles. Cl with inner tooth ....................................................................... 15

– PAO with 8–11 simple and bilobed vesicles. Cl without inner tooth. Pso formula dorsally: 20/011/1(0)1(0)023 .............................. H. justynae Pomorski, 2002 ( Canada)

15. m 1 setae present on Abd I–III. Pso formula dorsally: 3(2)0/011/11022(3) .............................................................. .................... H. variotuberculata (Stach, 1934) (Europe)

– m 1 setae absent on Abd I–III. Pso formula dorsally: 30/011/11023 ................... H. steineri Arbea, 2014 ( Italy)

16. PAO with 13–16 simple and bilobed vesicles ............... 17

– PAO with 8–14 simple vesicles. Pso formula dorsally: 30/011/1(0)1(0)023 .............................................................. .............. H. tala (Christiansen et Bellinger, 1980) ( USA)

17. Tip of antenna without cauliflower-like papilla. Cl without inner tooth. Pso formula dorsally: 30/011/11023(4–5) .............................................................. ........... H. cassa (Christiansen et Bellinger, 1980) ( USA)

– Tip of antenna with cauliflower-like papilla. Cl with inner tooth. Pso formula dorsally: 30/011(0)/1(0)1(0)024(5) ................................... H. intricata Pomorski, 2002 ( USA)