Anurophorinae, Börner, June, 1901

Babenko, Anatoly, 2017, New or little-known taxa of Anurophorinae (Collembola) with anal spines from East Asia with notes on DNA barcode, Zootaxa 4318 (2), pp. 312-324 : 321

Key to world genera of Anurophorinae with anal spines

1 Abd. IV and V fused.................................... Pseudofolsomia Martynova, 1967 (eastern areas of Europe)

- Abd. IV and V separated.............................................................................. 2

2 Eyes and pigment absent............................................................................... 3

- Eyes and pigment present.............................................................................. 6

3 Furca present.................................................................................................. Isotomodes Linnaniemi, 1907 (worldwide; part: I. armatus Naglitsch, 1962 , I. subarmatus Jordana & Arbea, 1990 )

- Furca absent......................................................................................... 4

4 Two anal spines on each Abd. V and VI........................................... Yosiiella Hüther, 1967 ( Brazil)

- Two or four anal spines on Abd. V, no spines on Abd. VI..................................................... 5

5 All age stages with two anal spines on Abd. V. ................. Martynovella Deharveng, 1978 (Middle Asia, Norway *)

- Abd. V with four anal spines in adults and subadults ( Fig. 25 ), and with two anal spines in juveniles of younger age instars............................................... Dimorphocanthella Potapov, Bu, Huang, Gao & Luan, 2010 ( China)

6 Abd. V with two anal spines, Abd. IV with medial conical protuberance..................................................................................................... Sahacanthella Potapov & Stebaeva, 1993 ( East Asia)

- With more anal spines or medial conical protuberance absent................................................. 7

7 Anterior setae on manubrium present..................................................................... 8

- Anterior setae on manubrium absent or furca entirely absent................................................... 9

8 Integument smooth. Manubrium with 2+2 or more anterior setae.......................... Appendisotoma Stach, 1947 (Holarctic; part of North American species, ecomorphic forms)

- Integument reticulate. Manubrium with 1+1 anterior setae...... Weberacantha Christiansen, 1951 (Holarctic; part: W. octa )

9 With two anal spines at the end of abdomen, unguiculus absent....................... Uzelia Absolon, 1901 (Holarctic) - With four or more anal spines at the end of abdomen, unguiculus present........................................ 10 10 Eight to nine anal spines on abdomen................................................................... 11 - Four to six anal spines on abdomen..................................................................... 12 11 Furca absent......................................................... Tiancanthella Rusek, 1979 (Middle Asia) - Furca present................................................... Octodonthophora Tshelnokov, 1990 (NE Asia) 12 Four anal spines on Abd. V–VI......................................................................... 13 - Five to six anal spines on Abd. IV–VI................................................................... 15 13 Microsetae between anteriomedial macrosetae (Md) on Abd. V absent ( Fig. 24 ).....................................

Figures

FIGURES 20 – 25. Distal part of abdomen in genera with four anal spines on Abd. V: 20 – 21, Tetracanthella, T. wahlgreni (20) and T. stebaevae (21); 22 – 23, Blissia, B. glabra, after Rusek (1985) (22) and B. robusta (23); 24, Sibiracanthella (S. rara), 25, Dimorphacanthella (D. mediaseta). Anterior row of setae notated as a 1, Md, a 3, Mdl. s — s - seta. Most of lateral setae not shown.