British Braconidce, 95 



? Bracon chlorophthalmus, Spin., Ins. Lig., ii., 133, ? . 

 M. chlorophthalmus, Hal., Ent. Mag., iii., 26, <? ? . 



Rufo-testaceous ; antenna? fuscous except at the base ; front, 

 vertex, occiput, thorax, especially the metathorax, and petiole of 

 the 1st segment, often more or less infuscated; eyes during lifo 

 green ; stemmaticum, claws, and valves of the terehra fuscous ; 

 hind tarsi often whitish at the apex. Wings testaceo-hyaline, 

 squamulse and stigma luteous ; nervures fusco-testaceous ; prse- 

 brachial areolet of the fore wings longer than, or sometimes equal 

 to, the pobrachial ; recurrent nervure interstitial (seldom sub- 

 rejected) ; radial areolet of the hind wings not divided, or rather, 

 the transverse nervure is decolorous. Terebra more than f the 

 length of the abdomen. $ 2 . Length, 2^ — 3^ ; wings, 5 — 6i lin. 



The sexes are alike in colour, and subject to the same variations; 

 Ruthe and Wesmael had males with the entire thorax fuscous, but 

 usually the infuscation is confined to the parts above mentioned. 

 Head as in the last species, but the eyes are much smaller, and not 

 glabrous. Antennae longer than the body, setaceous, those of the 

 $ 38 — 42-, of the J 31 — 39-jointed. Mesothorax punctulate, the 

 sutures distinct, enclosing a large rugulose depression before the 

 scutellum. Mesopleura? punctulate throughout, and beneath the 

 (usually fuscous) furrow, almost rugulose. Metathorax short, regu- 

 larly rounded, finely rugulose and reticulated, more strongly 

 behind, where it is beset with white pubescence, and having a fine 

 medial carina. Abdomen as long as the head and thorax, rather 

 narrower than the latter ; that of the 5 not subfalcate, and hardly 

 compressed ; suturiform articulation nearly effaced ; segment 1 

 more or less finely punctato-rugulose, often smooth posteriorly, 

 forming § of the whole abdomen, about three times wider at the 

 apex than at the base ; petiole very slender ; tubercles antemedial; 

 tracheal grooves distinct. "Wings hyaline with a yellowish tinge, 

 sometimes subfusco-hyaline ; stigma luteous in both sexes : radial 

 areolet of the hind wings at first sight not divided; the transverse 

 nervure, however, is visible in certain lights, paler and more 

 attenuated than in M. caligatus; 2d cubital areolet subquadrate. 

 The terebra is not black, as described by Ruthe, but rufous, subu- 

 late, with stout fuscous valves. 



This species is difficult to distinguish from M. deceptor, 

 in the female sex ; but in chrysophthalmus the praebrachial 

 areolet of the fore wings is never shorter than the 

 pobrachial. Bracon chlorophthalmus, Spin., referred by 

 Haliday to this species, but by Nees to the genus Rhogas, 

 cannot now be certainly determined. 



