210 Rev. T. A. Marshall's monograph of 



l<))i(]i(:aiidi.s is at once known by the terebra, which is as 

 long as the abdomen. 



Two males and fom- females were discovered by 

 Bignell at Bolt Head, Devon, in July ; and a S was 

 bred by him from Diasemia litcrata, Scop. 



Section III. 

 54. AjKiiiteles octonarius, Ratz. 



Mieroijdstcr octonarhis, Ratz., Ichn.d.Forst., iii., 52, ? . 



Apanteles octonarins, Reiuh., Berl. ent. Zeit., 1881, 

 p. 35, <? ? . 



Black ; palpi j^ale ; anteniite beneath towards the base fiisco- 

 ferruginous ; belly at the base, and legs (except the coxae and 

 upper trochanters), riifo-testaceous ; segments 1 — 2 margined 

 laterally with the same coloiu* ; hind femora sometimes dusky at 

 the tips, or with a fuscous line beneath, or nearlj' all fuscous ; 

 hind tibiffi darker at the apex. Wings hyaline, squamula} and 

 stigma fuscous, nervures fusco-testaceous. Mesothorax and 

 scutellum nearly smooth, and, like the whole body, shining; 

 metathorax rugiilose ; pleurae smooth. Segment 1 longer by ■§ than 

 its breadth, very slightly narrowed at the base, subrugulose at the 

 sides and apex, broadly truncate ; 2 transverse, shorter than 3, 

 with two impressed lines converging towards the base, and 

 enclosing a smooth subtriangular space. Terebra very short. 

 Valvula ventralis not surpassing the anus. Hind coxae smooth. 

 Spurs of the hind tibiae longer than i the metatarsus. ^ 2 • 

 Length, 1^ ; wings, 3 lin. 



Distinguished from all other species of Section III. by 

 the rugulose metathorax. 



Bignell reared 4 males and 3 females, July 23, from a 

 larva of Notodonta ziczac, L., and Bridgman has taken 

 both sexes at Norwich. In Germany Ratzeburg obtained 

 8 females at the end of May from a half-grown larva of 

 Gnophria quadra, L., found on a beech tree. Observing 

 4 maggots arranged symmetrically on each side of 

 the victim, and which ai)peared to be sucking it, he at 

 first supposed them to be external parasites. "Very 

 likely," he says, " I found the caterpillar just after the 

 Microgasters had bored their wa}^ out of it. In about 

 seven days the perfect insects appeared." According to 

 Reinhard this species has frequently been reared from 

 lAllioHia complaiia, L., and Tortrlx rosana, L. ; from the 



