ARGIDAE

KEY TO THE PALAEARCTIC GENERA OF ARGIDAE View in CoL View at ENA

1. Cell R of fore wing closed ( Figs 2, 4 View Figs 2–15 ). Vein Sc present ( Fig. 12 View Figs 2–15 ). Antenna of males simple ( Fig. 5 View Figs 2–15 ) ................... 2

– Cell R of fore wing open ( Fig. 3 View Figs 2–15 ). Vein Sc absent or incomplete ( Fig. 13 View Figs 2–15 ). Antenna of male bifurcate ( Fig. 6 View Figs 2–15 ) ( Sterictiphorinae ) .................................................................... 10

2. Middle and often also hind tibiae with preapical spurs ( Fig. 7 View Figs 2–15 ) ( Arginae , part) .................................................. 3

– All tibiae without preapical spurs ( Fig. 8 View Figs 2–15 ) ....................... 5

3. Cell 2A of fore wing open ( Fig. 9 View Figs 2–15 ) ..................................... ......................................... Pseudarge Gussakovskij, 1935

– Cell 2A of fore wing closed ( Fig. 10 View Figs 2–15 ) ............................... 4

4. Abdominal tergites of males and females without long medial process or triangular swelling. Hind tibia always with preapical spur .................................... Arge Schrank, 1802 View in CoL

– Fifth abdominal tergite of male with long medial process ( Fig. 17 View Figs 16–24 ), in females with slightly noticeable triangular swelling and inconspicuous median groove on tergites 4–6 ( Fig. 18 View Figs 16–24 ). Hind tibia with or without preapical spur ........ ........................................................... Spinarge Wei, 1998

5. Cell 2A of fore wing open or absent, vein 2A+3A barely distinguishable or without clear apex (as in Figs 9, 11 View Figs 2–15 ) ( Arginae , part) ..................................................................... 6

– Cell 2A of fore wing closed, vein 2A+3A distinctly sclerotised (as in Fig. 10 View Figs 2–15 ) (Athermatinae) ............................... 7

6. Fore wing with three cells Rs. Vein 2r–m absent ( Fig. 4 View Figs 2–15 ). Face below base of antenna not convex ( Fig. 14 View Figs 2–15 ) ........... ................................................... Kokujewia Konow, 1902

– Fore wing with four cells Rs. Vein 2r–m present (as in Fig 2 View Figs 2–15 ). Face below base of antenna strongly convex ( Fig. 15 View Figs 2–15 ) ... ............................................. Asiarge Gussakovskij, 1935

7. Vein B of fore wing joins vein R well before (longer than vein Sc) junction point of vein M (as in Fig 13 View Figs 2–15 ) ........... 8

– Veins B and M of fore wing join up at same point on vein R (as in Fig. 12 View Figs 2–15 ) ................................................................. 9

8. Hind tibia and apical spurs flattened; head strongly enlarged behind eyes in dorsal view (see fig. 1I in Luo et al., 2019) ......................................... Athermantus W.F. Kirby, 1882

–. Hind tibia and spurs non flattened (as in Figs 7, 8 View Figs 2–15 ); head not enlarged behind eyes in dorsal view (as in Fig. 16 View Figs 16–24 ) ........ ....................................................... Cibdela Konow, 1899

9. Width of head only slightly less than width of thorax in dorsal view (see Figs 38, 43, 45, 49 in Liston et al., 2017). Sheath obtuse in lateral view, width of its base in dorsal view almost 2.0 times its length (see Figs 4, 5 View Figs 2–15 in Liston et al., 2017) .............................. Pampsilota Konow, 1899

– Width of head considerably less than width of thorax in dorsal view ( Fig. 16 View Figs 16–24 ). Sheath with acute apex in lateral view ( Fig. 24 View Figs 16–24 ), width of its base in dorsal view equal to or slightly larger than length ( Fig. 23 View Figs 16–24 ) .......................................... ........................................... Tanyphatnidea Rohwer, 1912

10. Vein Sc of fore wing present (as in Fig. 12 View Figs 2–15 , also see Fig. 1 View Fig in Wei, 1997). Labial palps with 3 segments, maxillary palps with 5 segments. Right mandible simple, without basal tooth .................................... Ortasiceros Wei, 1997

– Vein Sc of fore wing absent ( Fig. 13 View Figs 2–15 ). Labial palps with 4 segments, maxillary palps with 6 segments ( Fig. 19 View Figs 16–24 ). Right mandible with basal tooth ( Fig. 21 View Figs 16–24 ) ................... 11

11. Cell A of hind wing closed ( Figs 22, 23 View Figs 16–24 ) ..................... 12

– Cell A of hind wing widely open (Fig. 26) ..................... 14

12. Veins B and M of fore wing join up at same point on vein R (as in Fig. 12 View Figs 2–15 , also see Fig. 1C View Fig in Choi et al., 2015). Claws with angular basal lobe (see Fig. 2C View Figs 2–15 in Choi et al., 2015). Process of cell A of hind wing almost 3.0 times its width (see Fig. 1C View Fig in Choi e t al., 2015) ..................................... ................................................ Yasumatsua Togashi, 1970

– Vein B of fore wing joins vein R well before (longer than vein Sc) junction point of vein M (as in Fig. 13 View Figs 2–15 ). Claws without angular basal lobe ( Fig. 20 View Figs 16–24 ). Petiole of cell A of hind wing less than 3.0 times its width ( Figs 22, 23 View Figs 16–24 ) ........................................................ 13

13. Cell 2A of fore wing open (as in Fig. 11 View Figs 2–15 ). Petiole of cell A of hind wing 2.0 times longer than its width ( Fig. 23 View Figs 16–24 ) .... ................................................. Aprosthema Konow, 1899

– Cell 2A of fore wing closed (as in Fig. 10 View Figs 2–15 ). Petiole of cell A of hind wing shorter than its width ( Fig. 22 View Figs 16–24 ) ................... ............................................. Sterictiphora Billberg, 1820

14. Veins B and M of fore wing join up at same point on vein R (as in Fig. 12 View Figs 2–15 ) ....................... Aproceros Malaise, 1931

– Vein B of fore wing joins vein R well before (longer than vein Sc) junction point of vein M (as in Fig. 13 View Figs 2–15 ) ......... 15

15. Cell 2A of fore wing absent (as in Fig. 11 View Figs 2–15 ) ..................... ............................. Pseudaprosthema Gussakovskij, 1935

– Cell 2A of fore wing closed (as in Fig. 10 View Figs 2–15 ) ......................... .............................................. Schizocerella Forsius, 1927 View in CoL

Notes on the genera of Argidae View in CoL known from the Palaearctic region (in alphabetical order)