Vol. V, ] [ No. 3. 



ORIGINAL COMMUNICATIONS. 



1.— DESCRIPTION OF A NEW GENUS IN THE PIRENIN&, 

 FAMILY CHALCIDID&, ORDER HYMENOPTERA. 



By William H. Ashmead. 



Eurycephalus, new genus. 



This genus differs from all the other genera in the Pirenin.se 

 except Ecrizotes, Forster, by the non-pubescent eyes, and in a table of 

 the genera comes between Pirene, Haliday and Ecrizotes, Forster, the 

 last mentioned being the only other genus with non-pubescent eyes. 



These two genera may be separated as follows : — 



Females. 



Ovipositor not exserted ; antennae clavate, g-jointed, the funicle 

 joints 3 — 5 unequal, wider than long; post-marginal and stigmal veins 

 short, much less than half the length of the marginal vein ; head 

 much wider than the thorax, deeply concave behind, the eyes large, 

 round 5 metathorax very short, the hind angles acute, the scutellum 

 convex, projecting and covering the very short abdominal petiole. 



Eurycephalus. 



Ovipositqr exserted ; antennas io-jointed, the funicle joints 2-5 

 of an equal length ; post-marginal and stigmal veins not short, at least 



half the length of the marginal vein. 



ECRIZOTES, Forster. 



(=ffenicetrus, Thomson.) 



Males. 



Marginal vein more than twice longer than the stigmal vein ; 

 antennae Q-jointed, the flagellum filiform, the pedicel very small, not 

 longer than wide, the first funicle joint the longest, curved, nearly 

 five times as long as thick, the second joint about thrice as long as 

 thick, the third and fourth about equal twice as long as thick, the r 

 club 3-jointed, not longer than the first funicle joint. 



Eurycephalus. 



