British Braconidae. 47 



38. Bracon barypus, n. s. 



Ater, nitidus ; mandibiilis, abdominis medio, pedibusque rufis ; 

 palpis, coxisque posticis basi supra, fiiscis ; tai'sorum articulo 

 ultimo, praesertim posticorum, incrassato, nigro. Alse fuscescentes, 

 stigmate fusco utrinque testaceo, uervis fuscis. Terebra abdominis 

 vix trientem snperans, valvis crassioribus, pilosis, truncatis. 



Deep black, shining; mandibles, abdomen in the middle, and 

 legs, rufo-testaceons ; palpi and hind coxfe above at the base, 

 fuscous ; last joint of all the tarsi, especially of the hind pair, 

 incrassated, black. Wings fascescent, nervures and stigma fuscous, 

 the latter testaceous at both ends. Terebra scarcely longer than 

 ^ of the abdomen ; valves stout, pilose, truncate. 5 . Length 

 1| ; wings, 3J lin. 



Elongate, like a Doryctes. Head subhemispherical ; antennae 

 as long as the body with the terebra, slender, filiform, 37-jointed : 

 clypeus and mandibles testaceous, the latter tipped with black. 

 Metathorax produced, carinated throughout its length, smooth and 

 shining. Abdomen as long as the head and thorax, attenuated 

 posteriorly, and subcompressed at the apex ; segment 1 half as 

 long again as its apical breadth, which is less than double that of 

 the base, aciculated, bicarinated, the lateral margins not mem- 

 branaceous, black ; 2, 3, and base of 4, rufo-testaceous, 2 with a 

 fuscous spot at the base ; all the segments except the 1st smooth 

 and shining ; suturiform articulation subobsolete ; thyridia of seg- 

 ment 2 distinct. Hind coxae with a large fuscous basal spot above ; 

 the rest of the short, stout legs rufo-testaceous, except the last 

 joint of the tarsi, which, together with the claws, is black, pale at 

 the base : the fore tarsi have the last joint somewhat incrassated, 

 the middle and hind pairs more strongly, resembhng those of 

 Acrodactyla among the Ichneumonidce, and unlike any other 

 Bracon. "Wings narrow, fuscescent, squamulse, nervures, and 

 middle of the pale stigma, fuscous ; stigma surroimded by a sub- 

 testaceous spot : 1st abscissa of the radius clouded with fuscous. 



Notwithstanding its general appearance this is a true 

 Bracon ; the occiput is not margined, and the pohra- 

 chial transverse nervure is exactly interstitial. The 

 incrassated tarsi distinguish it from all the preceding 

 species. 



My unique specimen was taken by sweeping herbage 

 near Niton, Isle of Wight, July 26th, 1884. 



