CHARLES W. HOOKER. 81 



Ophion purgatus FsintovL, Ent. Soc. Ont., Twenty-seventh Rept., 



p. 51 1897. 



E?ticospilus purgatus Dimmock, Proc. Ent. Soc. Wash., IV, p. 



153, n. 45 1898. 



purgatum Ashmead, Smith's Ins. N. J., p. 580, fig. 274..1899. 



Ophion purgatus Dalla Torre, Cat. Hym., Ill, p. 198 1901. 



Enicospilus purgatus Ashmead, Proc. Wash. Acad. Sci., 28, p. 



233, one 9 , Fox Point, Alaska 1902. 



Enisocpilus " Felt, Nineteenth Rept. State Ent. N. Y. 



(N. Y. St. Mus., Bull. 76), p. 108 1904. 



" " Ashmead, Harriman Expedition, Vol. 



VIII, Part I, Fox Point, Alaska, July 28.. .1904. 

 Ophion purgatus Szepligeti, Gen. Ins., Hym., 34me Ease, p. 32, 



n. 119 1905. 



Henicospilus purgatus Schvilz, Spolia Hymenopterologica, p. 98, n. 



198 1906. 



Enicospilus purgatus Viereck, Smith's Ins. N. J., p. 620, fig. 252..1910. 



Fulvous, vertex flavous to fuscous ; wings hyaline, iridescent, with two 

 macules, the larger subtriangular, often with an appendix separated from, 

 but clearly defined below, the smaller macula, ivhich varies in shape from 

 circular to semicircular, and sometimes nearly crescentic. 



Length, 14-24 mm. ; wing, 11-15 mm. ; spread, 23-32 mm. ; antennae, 

 15-25 mm. 



Fulvous, varied with flavous and fuscous ; head flavous, occasion- 

 ally darker, vertex of general color ; ocelli large, prominent, well sepa- 

 rated, equidistant ; antennae as long as the body, dark flavous ; eyes 

 large, emarginate ; clypeal foveae distinct ; mandibles bidentate, tipped 

 with black. 



Thorax sericeous, smooth, fulvous, tinged with fuscous or ferrugin- 

 ous ; mesonotum smooth, frequently more or less tinged with fuscous, 

 parapsidal furrows indistinct ; metathorax with a more or less distinct 

 anterior transverse carina, in front of which it is smooth, behind finely 

 rugose and occasionally with distinct carinae ; wings hyaline, iridescent, 

 sometimes tinged with fulvous, stigma flavo-fulvous, nervures slightly 

 darker ; basal half of radial vein thickened but narrowed near the 

 stigma ; discocubital vein siniate, its bulla scarcely one-fourth the width 

 of the third discoidal from its apex ; nervulus antefurcal to interstitial ; 

 nervellus broken far below the middle, discocubital cell with two ma- 

 culae, the larger subtriangular, often with an appendix separated from 

 it, but distinct below the smaller macula, which varies in shape from 

 circular or semicircular to nearly crescentic -in one specimen it is 

 nearly colorless — while the distance from the larger macula shows 

 considerable variation. 



Legs flavous or slightly reddish ; claws pectinate. 



TRANS. AM. ENT. SOC, XXXVIII. (11) 



