340 PROCEEDINGS OF THE NATIONAL MUSEUM vol.94 



cariniform ledge from the lower extremities of the eyes to the anten- 

 iial fossae; the eyes are usually pubescent; the scutellum is broadly 

 rounded posteriorly, moderately convex dorsally, and finely sculp- 

 tured; the tergites, except the fifth, are not emarginate at apex; and 

 the ovipositor is always distinctly exserted. It differs from Anas- 

 tatoidca Gahan by having the scrobes never margined above, the 

 ocelli in an obtuse triangle, the frons not narrow, the frontal ledge 

 from the antenna 1 fossae to the eyes present, the scutellum broader 

 and a little more convex and with finer sculpture, the hind tibia some- 

 what compressed but never oxpandctl into a broad flange on tlie 

 posterior margin, and the posterior basitarsus not strongly com- 

 pressed. 



The eyes are more or less convergent above ; frons not narrow ; lat- 

 eral ocelli farther from each other than from the front ocellus; an- 

 tennal scrobes shallow, confluent, and not sharply margined; anten- 

 nae broadly separated at base, 13-jointed, and inserted below a line 

 connecting the lower eye margins; parapsidal grooves deep; axillae 

 separated ; propodeum deeply emarginate medially ; marginal vein 

 two to four times as long as stigmal vein, postmarginal vein usually 

 less than twice as long as stigmal; forewing in large part fuscous, 

 with or without a hyaline band; front femora distinctly thickened 

 toward apex; middle tarsus thickened basally and with a double row 

 of short, stiff spines on the ventral side of basal segments 1 to 3 ; hind 

 tibia either slender or strongly compressed and moderately broad, 

 with two apical spurs. 



The male is similar to the male of Anastafus but may be distin- 

 guished by its somewhat longer and slenderer scape, by the short anten- 

 nal club, which is obliquely truncate from base to apex, by the shallow 

 and flat scrobal cavity, by the usually pubescent eyes, by the slightl}' 

 longer head as viewed from in front, and by the incomplete or less 

 distinctly impressed parapsidal grooves. 



Genotyi^e, Eupelmvs piceus Howard. 



KEY TO THE KNOWN SPECIES OF ARACHNOPHAGA ASHMEAD 



1. Females 2 



Males 14 



2. Forewing iji large part strongly infuscated, but hyaline at base and with a 



distinct crossband beyond and just touching apex of stigmal vein, this 

 crossband distinctly angled and connected witli hyaline basal area by a 

 broad medium longitudinal stripe, crossband and median stripe clothed with 

 whitish cilia, infuscated portion of wing with dark cilia; posterior femur 

 a little thicker beyond than before middle ; costal cell densely ciliated 



at apex 1. albolinea Gahan 



Forewing infuscated but without a definite hyaline crossband and without 

 a median hyaline stripe 3 



