310 



MEMOIRS OF THE CARNEGIE MUSEUM 



81. Stigmal vein very short, not or scarcely so long as the marginal and postmarginal veins united ; axillse 



meet at their inner basal angles 82 



Stigmal vein much longer than the marginal, as long or longer than the marginal and postmaginal 

 veins united ; axillse do not quite meet at their inner basal angles. 



Antennse with the scape rather short and stout, not reaching to the front ocelli, the flagellum 

 elongate filiform, clothed with sparse moderately long hairs, the funicle joints about thrice as 



long as thick, or nearly Pseudencyrtus Ashmead. 



Antennse with the scape long, slender, reaching to or beyond the front ocellus, the flagellum elon- 

 gate filiform, the funicle joints more than twice longer than wide, with long sparse hairs ; scutel- 

 lum shagreened or striate Microterys Thomson (part). 



82. Stigmal vein not longer than the marginal and postmarginal veins united, usually distinctly shorter, 



the postmarginal very short, or shorter than the stigmal Epiencyrtus Ashmead. 



Antennae with the scape short, not extending beyond the middle of the face, the flagellum fili- 

 form, sparsely pilose, the funicle joints about two and a half times as long as thick ; lateral 



ocelli about or nearly twice their width from the eye margin Syrphophagus Ashmead. 



Stigmal vein very short, not so long as the marginal and postmaginal united, the former being not more 

 than or hardly twice as long as thick, the postmarginal never well developed, although acuminate 

 and longer than the short marginal. 



Flagellum filiform, pilose, the joints of funicle about twice as long as. thick ; lateral ocelli 

 at least their width from eye margin Aphidencyrtus Ashmead. 



83. Scutellum neither triangular nor acute at apex 84 



Scutellum triangular, acute at apex. 



Antennse simple, subfiliform, pubescent Choreia Westwood. 



84. Funicle 6-jointed 85 



Funicle 2-jointed, the club unusually long and cylindrical (teste Mayr) Habrolepis Forster. 



85. Head with vertex autero-posteriorly broad, the face much iuflexed, the frons regularly punctate ; an- 



tennse with the scape and flagellum usually strongly compressed, broad ; wings fuscous or with fus- 

 cous rays 86 



Head always semiglobose, the face less distinctly inflexed, the scrobes always forming a semicircle ; 

 antennse simple, filiform, the joints long, cylindrical, distinct^ sepai'ated and haiiy, rarely slightly 

 compressed ; wings usually fusco-radiate or partly fuscous, rarely entirely hyaline. 



Scape elongate, extending to or beyond the front ocellus, the flagellum very long, clothed 



with rather long hairs Cheiloneurus Westwood. 



8G. Wings fuscous, with narrow white tips 87 



Wings hyaline, the marginal vein rather long, stout, as long as the stigmal vein, the latter not short, 

 the postmarginal not developed ; antennse long, filiform, the flagellum with sparse moderately long 

 hairs ; fuuiclejoiuts 1-6 constricted at apex or subpedunculate, somewhat similar to the male in 

 Eurytoma Cerapterocerus Westwood. 



87. Marginal vein shorter than the stigmal 88 



Marginal vein longer than the stigmal. 



Facial impression not bounded by a distinct carina superiorly Eusemion Dahlbom. 



88. Facial impression and scrobes deep, bounded by a high carina superiorly. 



Scutellum with a tuft of bristles ; stigmal and postmarginal veins very long. 



Chrysoplatycerus Ashmead. 



Scutellum without a tuft of bri.stlcs ; stigmal and postmarginal veins not long. Anicetus Howard. 



Facial impression not bounded by a carina superiorly 2arhopalus Ashmead. 



