MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPIPiE. 2C1 



farther away from the niariiiuof the eye than to the front oeellus; «yes 

 ovate, villose. 



Aiitenii?e inserted on a tubercle Just above the clypeus, 12-jointed in 

 both sexes, in the 9 terminating in a G jointed clnl), funiclar joints 3 

 and4minnte; in the $ long, filiform, the tiagelhir joints all cylindrical, 

 the third not angnlated. 



Maxillary palpi o-jointed. 



Mandibles birtd, the teeth eqnal. 



Thorax subovoid, the mesonotum without furrows, rarely with traces 

 of furrows posteriorly; scutellnm short, semicircular, with a punctate 

 frenum ; post-scutellum produced into a small spine; metathorax short, 

 the angles obtuse or acutely produced. 



Wings occasionally wanting; when present with the venation as 

 in Tdeas. 



Abdomen broadly oval or oblong-oval, the first segment transverse, 

 rarely as long as wide, striated, the third segment very large. 



Legs as in Gryon. 



Differs from Prosacantha Nees by the short transverse first abdom- 

 inal segment, and by having the teeth in both mandibles equal; and 

 from Gryon Hal. by having the iiostscutellum spined or tubercular. 



TABLE OF .SPECIES. 



FEMALES. 



Wingless sppcios 3 



Winged. 



Wings abbreviated, narrowed, when folded not reaching to the tip of the 



abdomen 2 



Wings extending to or beyond the tip of the abdomen. 

 Thorax and scntellnm closely minutely pnnctnlate. 

 All cox:e black. 

 Legs more or less fnscons or brown. 



Antenna' wholly black or brown black, except sometimes the scape at 

 base. 

 First and second abdominal segments striated. 



Third abdominal segment finely punctate . . H. loxgipexxis, sp. nov. 

 Third abdominal segment polished, impunctate. 



Wings hyaline: hind femora and tibia' fuscous, the tarsi pale. 



H. MINUTISSIMUS Ashm. 



Wings smoky; all tibia- and tarsi fuscous, the femora pale. 



H. TIBIALIS, sp. nov. 

 Cox.'e and legs yellow. 



Wings hyaline; scutellnm polished; third abdominal segment smooth, 



polished H. clakipennis, sp. nov. 



Wings subhyaline; scutellnm punctate; third abdominal segment punc- 

 tate H. PTKRiDLS, sp. nov. 



2. Coxa' and legs brownish-yellow. 



First and second abdominal segments striated, the first yellowish, the third 

 smooth H. 15HACHYPTERUS Ashui. 



