370 M. W. R. de V. GRAHAM 



- Lower edge of antennal toruli distinctly above the level of the ventral edge 



of the eyes ; marginal vein of forewing usually i -2 to 1-75 times as long as 

 the stigmal vein, if twice as long then the median area of the propodeum is 

 distinctly reticulate .......... 96 



96 (95) Clypeus reticulate, except sometimes at the sides. Fore wing usually with a 



fuscous cloud, either below the stigma or below the proximal part of the 

 marginal vein ........... 205 



- Clypeus mainly to entirely striate, the striae sometimes extending slightly up 



the face and genae .......... 97 



97 (96) Pronotal collar either immarginate, or at most weakly margined over its 



middle third ; medially one seventh to one sixth as long as the meso- 

 scutum. Propodeum medially one third as long as the scutellum or 

 slightly more, its median area smooth or weakly sculptured, without or 

 with a weak costula ; spiracles long-oval, nearly touching the metanotum 



HABROCYTUS Thomson (p. 494) 



- Pronotal collar sharply margined throughout except sometimes just at the 



sides ; medially sometimes much less than one seventh as long as the 

 mesoscutum. Propodeum sometimes different in length or sculpture, its 

 spiracles sometimes smaller ........ 98 



98 (97) Propodeum short, medially from slightly less than one quarter, to one third, 



as long as the scutellum ......... 99 



- Propodeum longer, about half as long as the scutellum . . . .100 



99 (98) Basal cell of fore wing with hairs scattered over its distal half or more ; 



wing beyond the speculum with dense pilosity ..... 101 

 Basal cell of fore wing, not counting hairs on basal vein, bare or with at most 

 a few hairs distally ; wing beyond speculum with pilosity less dense 



CECIDOSTIBA Thomson (p. 564) 



100 (98) Propodeum (Text-fig. 356) with petiolar foramen deeply, semicircularly 



excised ; costula absent. Fore wing with marginal vein 1 -5 to 2 times as 

 long as the stigmal vein ; stigma small. Anterior margin of clypeus 

 (Text-fig. 355) with two curved lobes between which there is a narrow 

 incision. Hind tibia with two apical spurs MOKRZECKIA Mokrzecki (p. 478) 

 Propodeum with petiolar foramen only shallowly excised ; costula often 

 present. Fore wing with marginal vein hardly 1-5 times as long as the 

 stigmal vein ; stigma rather large, its height about half the distance 

 between its upper edge and the costal margin of the wing. Anterior 

 margin of clypeus with a broader incision, its lobes often pointed. Hind 

 tibia usually with one spur (if two, the second weak) . . . .101 



10 1 (99) Either the distal half of the basal cell in the fore wing is hairy ; or else the 



propodeum has a strong costula and the panels of its median area are shiny 

 and have little if any fine reticulation, though some coarser wrinkles may be 

 present CAENACIS Forster (p. 569) 



- Basal cell of fore wing bare or with at most a very few isolated hairs distally ; 



median area of propodeum relatively dull, finely and nearly uniformly 

 reticulate, the costula tending to be weak or even absent 



DINOTOIDES Boudek (p. 571) 



102 (93) Antenna (Text-figs. 651, 652) with first funicular segment elongate, slightly 



constricted in its proximal half, longer than the pedicellus and much longer 

 than any of the other funicular segments ; clava very short, at most about 

 1 -5 times as long as broad, asymmetrical. Fore wing usually with a fuscous 

 cloud below the marginal vein. Propodeal nucha represented merely by a 

 lunate strip which is weakly sculptured or smooth ; propodeum often 

 with some indication of a costula . ARTHROLYTUS Thomson (p. 789) 



