Key to southeastern Oriental mutillid genera: females (unknown in Nonveilleridia)

1. Eye setose, sometimes the setae rare and visible only under high magnification (Subfamily Ticoplinae; one genus in SE Asia)................................................................ 1. Eosmicromyrmilla Lelej & Krombein, 2001

- Eye not setose........................................................................................ 2

2. Antenna short, club-like (Fig. 1); second metasomal segment lacking felt lines (Fig. 30); maxillary and labial palps number 2+2 ( Rhopalomutillinae; one genus in SE Asia)........................................ 2. Pherotilla Brothers, 2015

- Antenna longer, more slender (Figs 2–5); T2 or S2 with felt line; maxillary and labial palps number 6+4............... 3

3. Mesopleuron more or less convex, mesonotum wider than pronotum or propodeum (Figs 2, 18, 19).................... 4

- Mesopleuron concave, mesoscutellum not wider than pronotum or propodeum (Figs 3–6)............................ 8

4. T1 petiolate (Fig. 2); felt line present on S2 (Dasylabrinae; one genus in SE Asia)............... 3. Orientilla Lelej, 1979

- T1 wide, sessile or disciform; felt line present on T2 ( Mutillinae: Mutillini: Ephutina)............................... 5

5. Posterior border of T2 with wide shiny cuticular band, not punctured; head with long thickened setae (Figs 15, 16)........ 6

- Posterior border of T2 with usual punctures; head with simple setae (Figs 18, 19)...................................7

6. Head width 1.2 × mesosoma width (Fig. 15); compound eye flat, small; maxillary palps approximately as long as scape........................................................................ 16. Cockerellidia Lelej & Krombein, 1999

- Head width 0.9 × mesosoma width (Fig. 16); compound eye convex, usual; maxillary palps much longer than scape........................................................................ 17. Karlidia Lelej in Lelej & Krombein, 1999

7. T2 with large deep antero-lateral pubescent fovea................................ 18. Odontomutilla Ashmead, 1899

- T2 without antero-lateral pubescent fovea, with linear felt line........................ 19. Yamanetilla Lelej, 1996

8. Mesopleural suture ending at mesonotal tubercle, complete to dorsum of mesosoma (Figs 37, 46); inner margin of mandible with distinct tooth in basal third (Figs 38, 41) ( Myrmillinae). One genus in SE Asia........... 4. Bischoffitilla Lelej, 2002

- Mesopleural suture ending near anterior spiracle or becoming obsolete before dorsum of mesosoma (Figs 60, 75, 85); inner margin of mandible usually with teeth only near apex (Figs 133, 149) ( Mutillinae).................................. 9

9. Propodeum posterad with transverse row of denticles (Figs 48, 52) ( Mutillinae: Ctenotillini)......................... 10

- Propodeum posterad without transverse row of denticles (Figs 59, 72)........................................... 11

10. T2 without pale spots in basal half (Fig. 4); pygidium microreticulate (Fig. 51); inner margin of mandible without subbasal denticle...................................................................... 5. Ctenotilla Bischoff, 1920

- T2 with two pale spots located transversely near the middle (Fig. 5); pygidium mostly smooth (Fig. 55); inner margin of mandible with small subbasal denticle................................................. 6. Zeugomutilla Chen, 1957

11. T1 very wide, slightly narrower than T2. ( Mutillinae: Mutillini: Mutillina)....................................... 12

- T1 not so wide, much narrower than T2................................................................... 13

12. T2 disc without any band or spots.................................................... 21. Mutilla Linnaeus, 1758

- T2 disc with two ovate pale spots disposed transversely................................ 20. Kurzenkotilla Lelej, 2005

13. T2 disc with one or three basal spots of pale setae disposed transversely (Figs 8–12, 14), without spot of dense setae (Figs 6, 7, 13), or with two small spots at the lateral extremes of T2 (Figs 78, 90) ( Mutillinae: Smicromyrmini)............... 14

- T2 with two basal spots of pale setae disposed transversely (Figs 20–28) ( Mutillinae: Trogaspidiini).............. 23

14. T6 convex, without distinct pygidial area, with glabrous shiny area widened posterad, at most its apical part weakly carinated laterally............................................................................................ 15

- T6 flattened, with distinct pygidial area carinated laterally, pygidial area longitudinally striate, granulose or with glabrous shining apical part or entirely smooth, shiny................................................................... 18

15. Mesosoma distinctly evenly narrowed posteriorly (Fig. 65)............................... 13. Promecilla André, 1902

- Mesosoma slightly broadened posteriorly or more or less parallel-sided (Figs 56, 59, 68)............................ 16

16. Scutellar scal totally lacking........................................................ 11. Nordeniella Lelej, 2005

- Scutellar scale incospicuous, but distinct.................................................................. 17

17. T6 with glabrous shiny medial part, not carinated laterad even apically, considerably convergent basally where with lateral tuft of dense pale setae.................................................................. 14. Sinotilla Lelej, 1995

- T6 with elongate shiny glabrous pygidial area weakly carinated laterad........................ 8. Ephucilla Lelej, 1995

18. Scutellar scale lacking; mandible wide, tridentate apically............................... 7. Andreimyrme Lelej, 1995

- Scutellar scale more or less developed; mandible narrower.................................................... 19

19. Pygidial area strongly narrowed basally; T2 with one basal, one apical and two lateral pale spots (Fig. 11)........................................................................................... 12. Physetopoda Schuster, 1949

- Pygidial area with more or less parallel lateral sides or widened basally. T2 with one or three pale basal spots and pale apical band (Figs 8, 9), if sometimes with apical medial spot presented, then lateral spots absent........................... 20

20. Pygidial area short oval (Fig. 97); T2 apical band medially expanded to apparent white setal spot (Fig. 95)...................................................................................................10. Nemka Lelej, 1985

- Pygidial area elongated, with parallel sides or widened basally (Figs 81, 88, 100, 106); T2 apical band not so expanded.... 21

21. Scutellar scale more than 2 times wider than its length; T2 with three basal setal spots disposed in horizontal line (Figs 82, 84, 89, 92) or with two small spots at lateral extremes of T2 (Figs 78, 90) and at most with pale median apical patch (Fig. 84)............................................................................ 9. Mickelomyrme Lelej, 1995, part.

- Scutellar scale slightly wider than its length; T2 with lateral pale spots (if present) disposed behind median spot and with pale apical band or apical fringe (Figs 107, 111)................................................................ 22

22. Longitudinal eye diameter 1.5–2.0 × distance between posterior eye border and posterior head border.............................................................................................. 15. Smicromyrme Thomson, 1870

- Longitudinal eye diameter at least 3.0 × distance between posterior eye border and posterior head border...................................................................................... Mickelomyrme chinensis (Smith, 1855)

23. T6 without any pygidial area, convex, smooth, shiny, punctured basally or throughout.............................. 24

- T6 with more or less developed pygidial area, at least flattened shiny area carinated laterally......................... 25

24. Scutellar scale small but visible (Figs 137–140).......................................... 25. Orientidia Lelej, 1996

- Scutellar scale lacking (Figs 145, 146)................................................ 28. Promecidia Lelej, 1996

25. Mesosoma broadest in pronotum or pronotum and propodeum with equal width (Figs 21, 23, 24)..................... 26

- Mesosoma definitely broadest in propodeum (Figs 20, 26, 27)................................................. 30

26. Mesosoma black; metasomal segment 2 except posterior border, reddish................ 29. Taiwanomyrme Tsuneki, 1993

- Mesosoma ferruginous-red; metasomal segment 2 black...................................................... 27

27. Clypeus anteriorly strongly emarginate and bidentate.................................... 26. Pagdenidia Lelej, 1996

- Clypeus anteriorly at most weakly emarginate, with two weak denticles.......................................... 28

28. Scutellar scale broad, 1/3–1/4 × propodeal width; pygidial area finely rugoso-punctate.......... 32. Zavatilla Tsuneki, 1993

- Scutellar scale narrow; pygidial area mostly smooth, at most micropunctate...................................... 29

29. T2 with wide apical pale pale setal band (Fig. 21)..................................... 2 3. Krombeinidia Lelej, 1996

- T2 without apical pale setal band, at most with sparse pale fringe (Fig. 24)....................................................................................................... 27. Petersenidia Lelej in Lelej & Yamane, 1992

30. Pygidial area irregularly rugose throughout (Fig. 124)........................... 31. Wallacidia Lelej & Brothers, 2008

- Pygidial area variable, if mostly rugose, then having apex smooth or microreticulate (Figs 117, 121, 151, 154)........... 31

31. Pygidial area longitudinally striate (Figs 154, 164), longitudinally rugose basally (Fig. 160), or rugose in basal 0.75 (Figs 151, 157)....................................................................... 30. Trogaspidia Ashmead, 1899

- Pygidial area irregularly rugose in basal half and smooth in apical half (Fig. 121) or entirely microreticulate (Fig. 117)................................................................................... 22. Eotrogaspidia Lelej, 1996