2 o M. W. R. de V. GRAHAM 



pygostylar bristles of the gaster very long (Text-fig. 39). Either the 

 antennal toruli touch the edge of the oral fossa, or else the face has tubercles 

 or crests PTEROMALIDAE (part) 



- Either the marginal vein of the fore wing is at most three times as long as the 



stigmal vein ; or the pygostylar bristles are relatively shorter, the antennal 

 toruli are remote from the edge of the oral fossa, and the face is unarmed . 29 



29 (28) Antennae with 10 or 11 segments, of which four to six are funicular segments. 



Metapleuron (Text-fig. 24) not or indistinctly marked off from the pro- 

 podeum, usually more or less hairy ; propodeum with a median longitudinal 

 channel, or flat medially ; axillulae not or only vaguely marked off from the 

 scutellum ; body usually non-metallic, black, brown, or partly to entirely 

 yellow to reddish, but rarely metallic . . . EURYTOMIDAE (part) 



- Antennae usually with 13 segments, occasionally with 12 ; funicle with six to 



nine segments. The other characters rarely present in combination . 30 



30 (29) Body black, non-metallic ; propodeum with a median longitudinal channel ; 



scutellum without an offset frenum . . . EURYTOMIDAE (part) 



- Either the body is at least partly metallic ; or else the propodeum lacks a 



median channel, and usually also the scutellum has a frenum marked off 



by an impressed line . . . . . . . . . .31 



31 (30) Gaster with a conspicuous, subrectangular, reticulate or striate petiole. 



Front margin of metapleuron not sinuate ; hind femora neither swollen 

 nor with teeth ventrally ; stigma of fore wing small PTEROMALIDAE (part) 



- Gaster with a relatively inconspicuous, subconical, smooth or nearly smooth 



petiole ............ 32 



32 (31) Antennae inserted below the level of the ventral edge of the eyes. Either the 



fore wing virtually lacks a speculum and has the marginal vein hardly longer 

 than the stigmal vein ; or else the vertex has six to eight specialized dark 

 bristles which point forwards (as in Text-fig. 36) . PTEROMALIDAE (part) 



- Antennae inserted level with or above the ventral edge of the eyes. Fore 



wing usually with a speculum, marginal vein usually longer than the 

 stigmal vein. Vertex either with more numerous, or less specialized, 

 bristles ............ 33 



33 (32) Antennae with nine funicular segments ; stigma of fore wing small ; vertex 



with six to eight long dark bristles (much as in Text-fig. 36) 



PTEROMALIDAE (part) 



- Antennae with at most seven funicular segments. Either the stigma of the 



fore wing is large, or else the vertex is clothed with more numerous ordinary 

 hairs or bristles ........... 34 



34 (33) Pronotal collar sharply margined anteriorly. Squat, bright, metallic species 



much resembling Perilampidae ; gaster shorter than thorax, subglobose, 

 ovipositor sheaths in female not exserted ; mandibles large, bidentate 



PTEROMALIDAE (part) 



- Pronotal collar not margined. Species disagreeing in some other respect from 



the above TORYMIDAE (part) 



35 (27) Hind tibia with two stout apical spurs, one or both of these curved ; hind 



coxae (Text-fig. 26) nearly as long as their femora, with a fine carina along 

 their dorsal edge ; middle segments of gaster with some strong piliferous 

 punctures which are usually modified and form part of transverse bands of 

 characteristic sculpture (Text-fig. 25) ; marginal vein of fore wing six to 

 nine times as long as the very short stigmal vein ; antennae 13-segmented ; 

 postspiracular sclerite (Text-fig. 26) very narrow, fused with and lying in the 

 same plane as the mesopleuron ...... ORMYRIDAE 



