Forewing venation greatly reduced, last abscissa (segment) of RS vein completely absent (Fig. 1a).
Aneurobracon Brues, 1930

Forewing more complete, last abscissa of RS vein present though sometimes weak (Fig. 1b).
2

2(1)

Fore and mid claws simple (Fig. 2c).
Bassus Fabricius, 1804

Fore and mid claws cleft (Fig. 2a) or with a basal lobe (Fig. 2b).
3

3(2)

Fore and mid claws cleft (Fig. 2a).
4

Fore and mid claws with a basal lobe (Fig. 2b).
13

4(3)

Hind trochantellus with one or two distinct carinae (Fig. 3a).
5

Hind trochantellus lacking carinae (Fig. 3b).
8

5(4)

Foretibial spurs about as long as basitarsus and ending in a long thin style (Fig. 4a).
Coccygidium Saussure, 1892

Foretibial spurs less that 3/4 length of fore basitarsus and ending more abruptly (Fig. 4b).
6

6(5)

Posterolateral margins of frons bordered with carinae (Fig. 5a).
7

Posterolateral margins of frons not bordered with carinae (Fig. 5b).
Amputostypos Sharkey, gen. n.

7(6)

Second submarginal cell of forewing triangular or at least anterior side distinctly shorter than posterior side (Fig. 6a); base of antenna surrounded by pronounced medial, posterolateral, and anterior ridges; deep groove between antennae (Fig. 6aa).
Hypsostypos Baltazar, 1963

Second submarginal cell of forewing quadrate, as wide anteriorly as posteriorly (Fig. 6b); base of antenna surrounded by weak posterolateral, and anterior ridges; lacking deep groove between antennae (Fig. 6bb).
Cremnoptoides van Achterberg & Chen, 2004

8(4)

Notauli absent (Fig. 7a).
9

Notauli present but not necessarily complete (Fig. 7b).
10

9(8)

Lateral carina of frons directed towards lateral ocellus and not fused with medial carina (Fig. 5a); ovipositor at least as long as metasoma (Fig. 8aa).
Biroia Szépligeti, 1900

Lateral carina of frons fused with medial carina forming a circular border around antennal base (Fig. 8b); ovipositor barely exerted (Fig. 8bb).
Gyrochus Enderlein, 1920

10(8)

Posterolateral margins of frons not bordered with carinae (Fig. 9a).
Euagathis Szépligeti, 1900

Posterolateral margins of frons bordered with carinae (Fig. 9b).
11

11(10)

Medial and lateral carinae of frons lamellate (high and thin) (Fig. 10a); ovipositor barely exerted, much shorter than half length of metasoma (see Fig. 8bb).
12

Medial and lateral carina of frons in the form of blunt ridges, not lamellate (Fig. 10b); ovipositor at least as long as the metasoma (see Fig. 8aa).
Cremnops Förster, 1862

12(11)

Lateral carina of frons with posterior ends directed towards median ocellus (Fig. 11a).
Troticus Brullé, 1846

Lateral carina of frons with posterior ends directed towards lateral ocelli (Fig. 11b).
Disophrys Förster

13(3)

RS+M vein of forewing mostly or entirely absent (Fig. 12a); notauli present but not necessarily complete (Fig. 12aa).
14

RS+M vein of forewing present and complete (Fig. 12b); notauli absent (Fig. 12bb).
Earinus Wesmael, 1837

14(13)

First median tergite mostly striate (Fig. 13a) or (rarely) smooth; 2nd submarginal cell of forewing usually present (Fig. 13aa).
15

First median tergite mostly granulate or coriaceous (Fig. 13b); 2nd submarginal cell of forewing absent (Fig. 13bb).
Camptothlipsis Enderlein, 1920

15(14)

Metasomal cavity (MC) situated entirely dorsal to coxal cavities (CC) (Fig. 14a); a wide, high, straight, transverse carinae (TC) present between metasomal cavity (MC) and coxal cavities (CC) (Fig. 14a); median tergite 3 usually extensively striate in anterior half or more (Fig. 14aa), sometimes with other sculpture, rarely smooth.
16

Metasomal cavity (MC) situated partly between coxal cavities (CC) (Fig. 14b); wide, high, straight, transverse carinae (TC) between metasomal (MC) and coxal cavities absent, usually curved and relatively shallow if present (Fig. 14b); median tergite 3 smooth or (rarely) coriarious (Fig. 14bb).
17

16(15)

Adventitious vein (2RS) on r-m crossvein of forewing absent or indicated only by slight swelling (Fig. 15a).
Lytopylus Förster, 1862

Adventitious vein (2RS) on r-m crossvein of forewing present and distinct (Fig. 15b).
Braunsia Kriechbaumer, 1894

17(15)

Mouthparts long, galea significantly longer than wide; gena usually elongate (Fig. 16a).
Agathis Latreille, 1804

Mouthparts short (normal), galea not longer than wide; gena not elongate (Fig. 16b).
Therophilus Wesmael, 1837