34 AMERICAN HYMENOPTERA. 



Ophion bifoveolatus Ashmead, Colo. Biol. Assn., Bull. I, p. 43, 



Colo 1890. 



" " Ashmead, Smith's Cat. Ins. N. J., p. 25 (also 



1900 edition, p. 581) 1890. 



bifoveo latum Forbes, Ins. 111., 18th Rept., p. 125 1891-2. 



Osborn, Partial Cat. Animals of la., p. 15. ...1892. 



Riley, Proc. Ent. Soc. Wash., II, p. 134 1892. 



" " Slosson, Ent. News, V, p. 4, Alpine regions 



of Mt. Washington 1894. 



" bifoveolatum Forbes, 111. Agr. Exp. Sta., Bull. 44, p. 272.1896. 

 " bifoveolatus Dalla Torre, Cat. Hym., Ill, p, 188, Am. bor..l901. 

 " bifoveolatum Felt, N. Y. State Mus., Bull. 76, p. 119, pi. 



II, fig. 2 1904. 



" bifoveolatus Szepligeti, Gen. Ins., Hym., 34me Fasc, p. 32, 



n. 112, Am. bor 1905. 



" bifoveolatum, Forbes, 111. Agr. Exp. Sta., Bull. 116, p. 473..1907. 



Felt, N. Y. State Mus., Bull. 124, p. 43 1908. 



Forbes, 24th Rept. 111. State Ent., p. 161, 



bred from white grubs 1908. 



Viereck, Smith's Ins. N. J., p. 621 1910. 



Fulvo-ferruginous , eyes small, distant from, base of the mandibles , 

 abdom,en not strongly compressed, discocubital vein rarely appendicu- 

 late, costal vein inclined to black. 



Length, 12-22 mm. ; wing, 9-17 mm. ; spread, 20-36 mm. ; antennae, 

 12-17 mm. 



Light fulvous to ferruginous, face broad, frequently fulvous, ocelli 

 prominent, equidistant ; eyes small, distant from the base of the mandi- 

 bles, very slightly emarginate ; antennae dark brown, their apices fre- 

 quently darker, stout, not as long as the body; clypeal foveas deep, 

 usually black. 



Thorax fulvous to ferruginous, finely punctured, with the sutures 

 sometimes darker; mesonotum convex, usually smooth. 



Scutellum and postscutellum prominent, the former sometimes light 

 ferruginous ; metathorax with a weak median transverse carina and 

 behind it several weak median longitudinal carinae, all of which are 

 more or less distinct. 



Wings hyaline or tinged with fuscous ; stigma well developed, fulvous ; 

 nervures black ; discocubital vein angularly bent but usually without 

 an appendix, though a trace of one is frequently present, and some- 

 times a distinct appendix ; bulla of the second recurrent vein usually 

 close to the tip of the discocubital vein ; nervulus interstitial to ante- 

 furcal ; nervellus broken above the middle. 



Legs uniformly fulvo-ferruginous ; claws pectinate. 



Abdomen not strongly compresssed, but relatively thicker and shorter 

 then usual ; rarely considerably compressed ; often darker at the tip ; 

 male clasps stout, rather long, obliquely rounded. 



