British Braconidce. 185 



end of the 4th segment ; 5th and 6th narrower ; 7th in the 5 

 protruding only as a blunt point ; 7th segment of the <? rounded, 

 and followed by the exserted apex of the 8th. Terebra concealed. 

 (? J . Length, 2f ; wings, 6 Hn. 



Very rare in this country ; a parasite of Hylotoma 

 enodis, L. "VVesmael possessed 4 specimens taken near 

 Brussels ; Magretti has found it in Italy, at Canonica 

 d'Adda; Curtis records a <? captured in Birch Wood, 

 Kent, and a ? taken by Kirby, now in the Stephensian 

 collection ; Cameron has obtained more than one in 

 Scotland, and the 3' I possess is due to his liberality. 



XX. HELCONTIDES. 

 Maxillary palpi 6-, labial 4-jointed. Front excavated, usually 

 armed with an erect tooth ; head large, subconic, transverse. 

 Abdomen sessile or subsessile, articulated to the posterior face of 

 the metathorax near its upper edge, and much above the hind 

 coxae ; 1st segment usually elongate, forming even as much as 

 half the abdomen ; but not so in Cenocoelius, Fore wings with 

 3 cubital areolets; recurrent nervure I'ejected or interstitial; 2d 

 cubital areolet trapeziform ; radial areolet lanceolate, acute, 

 ending before the apex of the wing ; metacarpus longer than the 

 stigma ; praediscoidal areolet contigvious or petiolated. Hind 

 femora incrassated, in Helcon often toothed beneath. Terebra 

 elongate. 



The species are parasites of Coleoptera. 



The two genera to be here noticed are only distantly 

 related ; yet it is better perhaps to keep them together 

 for the present. 



Abdomen sublinear, elongate ; 1st segment forming 

 nearly half of its length ; anterior margin of the 

 clypeus unarmed ; recurrent nervure considerably 

 rejected . . . . . . . . . . . . i. Helcon. 



Abdomen elliptic, short ; 1st segment scarcely forming 

 a third of its length ; anterior margin of the 

 clypeus dentate ; recurrent nervure interstitial, or 

 nearly so . . . . . . ii. Cenoccelius. 



i. Helcon, Nees. 

 Nees, Act. Ac. L. C, 1819, p. 307 ; Mon., i., 224. 

 Occiput margined. Mesothoracic sutures distinct, rugose. Prae- 

 discoidal areolet almost touching the parastigma. Abdomen as 



