ABT. 16 



NORTH AMERICAN ICHNEUMON-FLIES CUSHMAN 



(Mesosteniis) Agonocryptus chichimecus (Cresson) (new combina- 

 tion). 



{Cryptus) Agonocryptus heathi (Brues) (new combination). 



AGONOCRYPTUS DISCOIDALOIDES (Vicreck) (new combinaUon) 



Figs. 2a, 3&, 6a, 7 



Mcsosienus discoidaloides Viereck, Ti"ins. Kansas Acad. Sci., vol. 19, 1905, 

 p. 319, female. Type. — Kans. Univ. Coll. 



Discussion based on seven specimen^ of each sex in the National 

 Collection determined by the author from Viereck's description 

 and from notes on the type 

 by A. B. Gahan. 



FeTihole. — Face very 

 slightly narrower than 

 frons, two-thirds as long 

 as broad, usually more or 

 less obliquely rugulose on 

 eacli side above ; malar 

 space three-fourths basal 

 width of mandible; diame- 

 ter of lateral ocellus two- 

 thirds ocell - ocular line. 

 Thorax coarsely punctate, 

 rugose in pronotal and 

 mesopleural impressions ; 

 propodeum transversely ru- 

 gose in middle between 

 carinae, apical area longi- 

 tudinally so ; n e r V e 1 1 u s 

 broken at or somewhat 

 above middle. Abdomen 

 coarsely and rather densely 

 punctate, more finely and 

 sparsely so at apex; first 

 tergite sparsely so, pobshed 

 at base and apex, two- 



. 1 . T 1 T , Fig. 7. — Agonocbyptus discoidaloides (Viebbck) 



thirds as broad at apex as 



long ; second tergite distinctly longer than broad at base ; ovipositor 



sheath half as long as abdomen. 



Black with j^rofuse yellow markings; head yellow except mandi- 

 ables at apex, spot in malar space extending up to clypeal fovae, 

 middle of frons and vertex, and occiput which are black or blackish ; 

 antenna black with a small spot on scape and a broad annulus cen- 

 tering at about the eighth joint yellow; thorax yellow as follows: 

 Pronotum dorsally and ventrally, propleurum, round or oval median 



