218 Rev. T. A. Marshall's monograitli of 



63. Apanteles formosus, Wesm. 



Microgaster foniiosiis, Wesm., Nouv. Mem. Ac. Brux., 



1837, p. 60, pi., f. I. ( ? ?). 

 Apanteles formosus, Eeinli., Berl. eiit. Zeit., 1881, p. 50, 



^ ?". 



Black; mouth, palpi, squamiilae, Ist abdominal segment, belly 

 at the base, and legs, flavo-testaceus ; hind coxae at the base, or 

 wholly, black ; hind femora and tibiae darker at the tips, their tarsi 

 also infuscated. Wings hyaline, stigma fuscous. Thorax very 

 smooth and shining ; metathorax with the apex produced, and a 

 wide shallow depression on each side, giving it somewhat the form 

 of a saddle. Segment 1 smooth and shining, more than twice as 

 long as its breadth, the sides parallel nearly as far as the rounded 

 apex, where it is somewhat rugulose ; 2 shorter than 3, transverse, 

 with two oblique basal impressions, smooth and shining, like the 

 remaining segments. Terebra short. Valvula ventrahs sm'passing 

 the anus. Internal spur of the middle tibiae slightly curved at 

 the apex. (J J . Length 1§ ; wings 4§ lin. 



A species remarkable for structure, colour, and the 

 doubt connected with its earlier state. In addition to 

 the form of the metathorax above described, the 2d 

 abdominal segment is peculiar. The two oblique basal 

 impressions fail before reaching the posterior margin, and 

 consequently do not enclose a triangular space ; and the 

 middle of the anterior margin is angularly produced. 

 The 1st segment differs from that oi A.fidvipes, Hal., and 

 its allies, in being broader, shorter, and not attenuated 

 hindwards till just before the apex. The abdomen of the 

 (? is smaller and narrower than that of the ? , and the 

 1st segment infuscated towards the apex. The unknown 

 Ichneumon intercus, Schr. (Enum. ins. Austr., 764), as 

 to its description, agrees very closely with the $ of 

 this insect. 



Wesmael's original specimen, of doubtful sex, was 

 taken near Liege. According to Reinhard, both sexes 

 have since been reared at Vienna from Orgji'ia aiitiqna, L., 

 making pure white cocoons. Bignell, in England, bred 

 a $ , June 20th, 1881, from a half-grown larva of Tcenio- 

 (■(tmpd stdhilis, View., which is preserved with it, together 

 with a white cocoon of the usual appearance. But he 

 has also reared the <? from Uropferi/.r sdmbucarid, L., 

 and in this case the cocoon is totally different, being 

 3'ellowisli brown, of a shining gummy texture, and raised 

 upon a long stiff' footstalk of the same material. This is 



