British Braconidce. 89 



(22) 21. Head and mesothorax testaceous, im- 

 maculate ; stigma yellow, sometimes 

 fuscous at the apex . . . . . . 12. armatas, Wesm. 



(21) 22. Head and mesothorax more or less 

 black ; stigma fuscous, with a pale 

 spot at the base . . . . . . 11. vittiger, Wesm. 



1. Rliogas dissector, Nees. 



Rogas dissector, Nees, Mon., i., 208, <? ; Eeinb., Berl. 

 ent. Zeit., 1863, p. 25'2, <? ? ; S. v. YolL, Pinac, 

 pi. iv., fig. 4. 



B. rugulosus, Hal., Ent. Mag., iv., 97, ^ ? (nee Nees). 



Black, mouth and legs rufous, the latter stouter than in the other 

 British species ; hind tibiae pale, broadly black at the apex ; hind 

 tarsi black. Mesopleiu-ae smooth and shining, rugose above, thinly 

 puuctulate on the hinder margin. Abdomen attenuated at the 

 base, ruguloso-jtunctate. Second cubital areolet about twice as 

 broad as its length; 1st intercubital nervm-e oblique. J $. Length, 

 85 — 3f ; wings, 5^ — 7 lin. 



Antennae somewhat longer than the body, black, about GO — 64- 

 jointed, a niimber reached by no other British species. Face 

 transversely rugose. Mandibles rufous ; palpi fiTscous orrufescent. 

 MesopleursB often with a longitudinal rufous stripe. Metathorax 

 flattened, ruguloso-ininctulate, with a medial carina. Abdomen 

 narrower than in the other species, gradually widening to the end 

 of the 3d segment ; segments 1 — 2, and 3 at the base, rugulose, 

 the rest smooth and shining ; segment 1 at the apex twice as broad 

 as its base ; segment 2 as long as its basal breadth. Abdomen of 

 the ? somewhat compressed at the apex ; terebra very short. 

 Wings ample ; 2d cubital areolet as long as the podiscoidal ; stigma 

 more attenuated than iisual at the apex ; radial areolet narrow. 

 CoxEe rufous ; hind femora subinfuscated at the apex. 



Var. a. Abdomen wholly black. 



Var. /3. Segment 1 at the apex more or less, and 2 entnely, 

 piceous. 



Var. 7. Segments 1 — 2 bright rufous. 



I have not seen this species, -which, according to 

 Haliday, is not rare in Ireland, frequenting umbelliferous 

 flowers in autumn. In Eeinhard's table it is ranked 

 among species with the abdomen wholly black, which, 

 considering the varieties mentioned by Nees and Haliday, 

 may sometimes lead to difficulty. The true rugulosus, 

 Nees, has not yet been identified in England ; it has 

 been bred by Brischke from Acronycta euphorhiie, Fab., 

 and A. ahscondita, Tr. 



