British Braconidse. 39 



and the tibiae at both ends, dull liiteous. Abdomen very elongate, 

 turned up at the extremity ; 1st segment granulate, not shining, 

 gradually dilated from base to apex, though the increase in width is 

 very ^mall ; tubercles scarcely discernible ; anterior segments in- 

 fuscated above. Terebra slender, its valves black, ascending, curved, 

 about as long as half the 1st joint of the hind tarsi. $ Unknown. 

 Length nearly 2-2^ ; exp. 3 lines. 



Found very seldom on Pinus sylvestris, the Scotch fir. 

 This species, the four following, and doubtless many more 

 occurring in palaearctic forests, form a section apart, distin- 

 guished by greater size and consequent distinctness of the 

 generic characters, as well as by their parasitism on the 

 larger Aphidse {Lachnus, etc.) which infest coniferous 

 trees. These peculiarities, however, are insufficient to 

 justify the establishment of a new genus. The synonymy 

 given in the catalogue (1872) p. 110, under A. varius, 

 which includes pictus, Hal, seems dubious, and is therefore 

 omitted in this place. 



4. Aphidius infulatus, Haliday. 



A. infulatus, Hal., lib. cit., 96 ; Marsh., lib. cit., p. 

 546, $ ?. 



$ Head riifo testaceous ; vertex and eyes black ; thorax black ; 

 abdomen rufotestaceous. Antennae black, scape testaceous, 5 or 6 

 apical joints yellow, the terminal joint fuscous at the extremity. 

 Prothorax luteous beneath ; mesonotum shining, finely and vaguely 

 punctulate. Wings hyaline, infumated below the stigma and 

 towards the tip ; squamulse and radicles stramineous ; nervures 

 fuscous ; stigma fusco-ferruginous. Legs luteous, the 4 posterior in 

 great part clouded with an obscure tinge ; hind coxae with a fuscous 

 spot. Anterior segments of the abdomen infuscated above, the 

 posterior immaculate ; 1st segment as in sp. 3, but less dilated at 

 the apex, black. ^ Black ; antennae more slender than in the 

 allied species, entirely black ; wings hyaline ; squamulse and radicles 

 dull stramineous ; nervures and stigma fuscous ; fore legs strami- 

 neous, duller on the outer side ; 4 posterior legs fuscous with almost 

 the whole of the trochanters, both ends of the tibiae, and base of the 

 tarsi stramineous ; all the coxae, black ; abdomen piceous with a 

 luteous patch in the middle above ; 1st segment scarcely dilated at the 

 extremity. Length nearly Ij-l^ ; exp. 2^2| lines. 



Found rarely upon Abies larix, the larch. 



