ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 305 



Wings with fuscous rays. 



Head oblong ; antennae strongly compressed, broad ; occipital margin and the scutellum normal. 



Cerapterocerus Westwood (type C. mirabilis Westw.)- 

 Head not oblong ; antennae neither strongly compressed nor broad ; occipital margin medially 

 and superiorly, with two strong clavate hairs ; scutellum at apex with one or two clumps 

 of hairs ; marginal vein more than twice as long as thick. 



Funicle 6-jointed, the joints wider than long, the club not especially large. 



Habrolepis Forster (type Encyrtus dalmani Westw.). 

 Funicle 4-jointed, the joints fully twice as long as thick, or a little longer, the club very, 

 large, fusiform, nearly as long as the funicle and much stouter. 



Homalopoda Howard (type H. cristata How.). 



52. Marginal vein shorter than the stigmal or no longer 55 



Marginal vein longer than the stigmal ; facial impression not bounded by a distinct arched carina 



superiorly 53 



53. Scutellum without a tuft of black bristles near apex 54 



Scutellum with a tuft of black bristles near apex. 



Head with a series of moderately large punctures ; axillae very narrow, transversely wedge- 

 shaped, with the points just meeting at base of the scutellum ; antennae compressed, the 

 scape wide Eusemion Dahlbom (type Encyrtus corniger Haliday). 



Head microscopically punctate ; axillae with their points not quite meeting ; antennae strongly 

 clavate, subcompressed, the scape subclavate, the club very large, many times larger than 



the funicle, the joints of the latter transverse, linear , ,. ..Blatticida Ashmead, g. nov. 



(type B. pulchra Ashm.). 



54. Head smooth, shining, with very fine, sparse punctures ; ocelli in an acute triangle ; axillae united at 



base of the scutellum Atropates Howai d (type A. collinsi How.). 



55. Facial impression not bounded by an arched carina superiorly 57 



Facial impression and scrobes deep, bounded by a distinct arched carina superiorly. 



Scutellum without a tuft of bristles 5G 



Scutellum with a tuft of bristles. ' 



Stigmal and postmarginal veins very long Chrysoplatycerus Ashmead 



(type Rileya splendens How.). 



56. Marginal and postmarginal veins subequal, the stigmal a little the longer ; eyes naked ; ocelli fn an 



acute triangle ; funicle not longer than the first joint of the club Asteropseus Howard 



(type A. pi'imus How.). 



Marginal longer, the stigmal and postmarginal veins not long ; eyes pubescent ; joints of the funicle 



all short and rapidly widening from the narrow pedicel, the club longer than the funicle, obliquely 



truncate from beneath towards apex ; tarsi short and somewhat thickened Anicetus HoAvard 



(type A. ceylonensis How.). 



57. Scutellum normal ; eyes pubescent ; antennae short, the scape somewhat broadly dilated toward apex ; 



the flagellum strongly incrassated, scarcely longer than the scape, the very large club longer than 

 the funicle, the joints of funicle annular ; marginal vein punctiform, the stigmal and postmarginal 

 veins very long as in Encyrtus Zarhopalus Ashmead (type Z. sheldoni Ashm.). 



58. Antennae 10-jointed, the funicle 5-jointed. 



Scape linear, wholly received in the scrobes ; marginal vein punctiform Metallon Walker 



(type M. acacallis Walk.). 



