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



observed by Bignell the larva perished before attempting 

 pupation. Cocoons white, with a satiny sheen, and 

 slightly woolly. Brischke obtained only one parasite 

 from a larva of Portliesia, and another from Acronycta 

 tridens, Schiff., which he assigns to this species, calling 

 the cocoon light brown, perhaps only another way of 

 expressing impure white. 



8. Microgaster tiro, Eeinh. (PI. VI., fig. 2). 

 Microgaster tiro, Eeinh., Berl. ent. Zeit., 1880, p. 357, 



Black ; palpi pale ; antennae sometimes rufescent beneath ; 4 

 anterior legs testaceous ; hind legs blackish, with the trochanters, 

 and base of the femora, of the tibiae, and of the tarsi, testaceous ; 

 middle coxae at the base, hind coxae entirely, black. Lateral mar- 

 gins of segment 1, and base of the belly laterally, but not in the 

 middle, testaceous. Wings hyaline, squamulae and costa testa- 

 ceous, nervures and stigma fuscous, the latter pale at the inner 

 angle. Antennae of the ? as long as the body ; of the ^ , longer- 

 Head, mesothorax, and scutellum shining, almost invisibly punctu- 

 late ; j)leuras smooth ; metathorax subrugulose, rather shining, 

 carinated. Segments 1 — 2 punctato-rugulose ; segment 1 wider 

 than in any of the preceding species, about 1^ times as long as broad, 

 with parallel sides, excavated at the base, truncated at the apex ; 

 2 broader than 1, half as long as 3, obliquely truncated at the 

 anterior angles ; suturiform articulation straight. Terebra longer 

 than i the abdomen. Valvula ventralis subacuminated, somewhat 

 surpassing the anus. Hind legs elongate, their femora and tibiae 

 incrassated. ^ J . Length, 1^ ; wmgs, 3 lin. 



Intermediate between the present section and the 

 typical Microgasters which follow. In the length of the 

 1st segment it resembles the former ; in the breadth of 

 the same segment, the compact form of the body, and 

 length of the terebra, it apin-oaches the latter. 



Described from two males and one female. One male 

 is in Fitch's collection, bred by Eaynor, June 27th, from 

 a Tortrix-lsiYYSi feeding on chamomile. From this same 

 larva issued a second and different parasite, Apanteles 

 emarginatus, Nees. Another S was bred by Fitch, April 

 26th, also from an unknown To/'^/ir-larva. The ? was 

 captured by me in Northamptonshire. Cocoons white. 



