British Braconidce. 257 



femora black at the base, or with a black stripe above and beneath, 

 most conspicuous on the middle, and least on the hind pair. 

 Length, about If lin. 



Var. 3, M. vulgaris, Ruthe. Metathorax and segments 1—2 

 more finely rugulose ; coxae and femora black ; fore femora with 

 the ai^ical half, middle femora only at the tips, and hind femora 

 enthely, black or fuscous ; anterior tibiae and tarsi entirely rufous ; 

 hind tibife at the tips, and then* tarsi, generally black, or the last 

 wholly rufous. Length, If — 2 lin. 



Var. 4, M. litctuosus, Hal., <? . Palpi fuscous; fore legs with the 

 knees, tibiae, and tarsi, rufescent ; middle tibiis the same with the 

 apex fuscous ; hind tibiae rufescent only at the base ; wings very 

 dark; lateral margins of segment 1 narrowly testaceous. Length, 

 2 Hn. 



Very common. A solitary parasite of small Lepi- 

 doptera. Bred by Bignell from Emmelesia decolorata, 

 Hiib. The pupte were buried during the winter. A ? in 

 Fitch's collection, answering to messorius, Hal. (tibiae 

 testaceous, wings very dark), was reared by Elisba, 

 June 9th, from Peronea Shepherdana, Ste, Brischke 

 bred it from Tachi/ptilia popnlella, Clerck. I possess 

 19 specimens, including most of the above varieties, 

 collected throughout the country, from Eannoch to the 

 Isle of Wight. Cocoons white. 



16. Microgaster hospes, n. s. 



Niger, palpis fuscis, tibiis rufis ; femoribus feminae anterioribus 

 apice, posticis etiam lateribus, rufis, maris totis nigris. Alae hyalinae, 

 squamulis nigris, nervis et stigmate ferrugineo-fuscis. Caput cum 

 mesothorace nitiduxQ subtihssime confertim punctulatum ; scutellum 

 laeve ; metathorax et segmenta 1 — 2 punctato-rugulosa, ille hand 

 carinatus. Segmentum Imum subquadratum, basi non angixstatum ; 

 2dum 3tio aequale, hoc et seqq. laevia nitida. Terebra abdominis 

 dimidio sequalis, curvata, valvulis clavatis. Valvula ventralis 

 magna, picea, acuta, anum non superans. Pedes quam M. novicio 

 crassiores, breviores, praesertim feminae. Calcaria postica meta- 

 tarsi dimidio breviora. 



Black ; palpi fuscous, tibiae rufous ; anterior femora of the $ at 

 the apex, hind femora also at the sides, rufous, those of the ^ 

 entirely black. Wings hyaline, squamulae black, nervures and 

 stigma reddish fuscous. Head and mesothorax shining, thickly 

 and very finely punctulate ; scutelhma smooth ; metathorax and 

 segments 1 — 2 ptmctato-rugulose, the former not carinated. Seg- 

 ment 1 subquadrate, not narrowed at the base ; 2 as long as 8, 



TBANS. ENT. SOC. LOND, 1885. — PABT I. (aPEIL.) S 



