ASHMEAD : CLASSIF'ICATION OP THE CHALCID FLIES 309 



not well develoi)ed, scape slender or at most sabclavate, never dilated ; frons usually rather 

 narrow, the eyes, as seen from in front, slightly converging above. - 



Scape slender, or at most subclavate ; frons rather narrow 76 



Scape and flagellum abnormally compressed and broad, the funicle joints 1 to 4 wider 

 than long Mirocerus Ashmead, n. g. (type M. peyelse Ashm.). 



76. Flagellum with the hairs on the funicle joints not arranged in half whorls. 



Lateral ocelli touching the eye margin ; flagellum with long hairs. 



Eyes bare ; postmarginal vein not developed &r so slightly developed as not to be con- 

 sidered Ooencyrtus Ashmead. 



Eyes pubescent ; postmarginal vein as long as the marginal.. Ageniaspis Dahlbom (part). 

 Lateral ocelli not close to the eye margin ; postmarginal vein somewhat developed ; flagellum 



filiform, with a short pubescence Psyllaephagus Ashmead. 



Flagellum with the hairs on the funicle joints arranged in half whorls Coccidencyrtus Ashmead. 



77. Species metallic or submetallic 78 



Species Tiot metallic ; head and thorax oj^aque or subopaque, alutaceous, closely microscopically punc- 

 tate or shagreened, and pubescent. 



Postmarginal vein present. 



Pedical longer than the first joint of funicle ; flagellum clothed with hairs, the funicle 

 joints, except the first two or three joints, not or scarcely longer than thick. 



Aphycus Mayr. 

 Pedicel very short ; flagellum elongate, the club only slightly enlarged, the funicle joints 

 elongate, cylindrical, and clothed with sparse, long hairs. . . . Heterarthrellus Howard. 

 Postmarginal vein wanting. 



Pedicel as long as the first funicle joint ; flagellum subclavate, the club not quite so long 

 as funicle joints 4-6 united, fii'st joint of funicle the longest, the following gradually 

 shortening, clothed with a short, rather dense pubescence Astymachus Howard. 



78. Thorax without a scaly pubescence, and without white lunulse before the tegulse 79 



Thorax with a scaly pubescence, and with white lunuloe before the tegulse. 



Flagellum elongate, the funicle joints long, excised or subexcised at apex with whorls of long 

 hairs Blastothrix Mayr. 



79. Scape normal, not expanded or dilated beneath, at the most subclavate ; wings hyaline 80 



Scape usually dilated or expanded beneath, or at least with a carina, rarely simple, unlike the female ; 



wings fuscous or subfuscous, with transverse hyaline bauds, rarely hyaline. 



Thorax smooth but microscojiically coriaceous, with sparse punctures scattered over the surface ; 

 frons with a series of punctures, especially on the orbits Microterys Thomson. 



80. Thorax finely coriaceous, subopaque, without punctures scattered 'over the surface ; frons punctate ; 



scutellum with a delicate impressed median line ; wings pubescent, with an oblique hairless line 

 from base of stigmal vein ; flagellum subfiliform, clothed with a short, dense pubescence, the funicle 



joints a little wider than long Holcencyrtus Ashmead. 



Thorax smooth, impunctate, or at the most microscopically reticulate, or with fine longitudinal striae 

 on the mesonotum. 



Mesouotum smooth, impunctate, or at the most microscopically reticulate 81 



Mesonotum with fine longitudinal striae. 



Stigmal vein scarcely longer than the marginal, the postmarginal vein longer than the 

 marginal and stigmal veins united ; eyes pubescent Ageniaspis Dahlbom. 



