British Braconidce. 85 



skin. At Vienna this parasite has been reared by Giraud 

 from Heterogenea limacodes, Hufn. 



iii. Pelecystobia, Wesm. 



Wesm., Nouv. Mem. Ac. Brux., 1838 p. 91. 



Third joint of the maxillary palpi dilated internally, securiform ; 

 suturiform articulation diRtiuct, crenulate ; 3 cubital areolets, the 

 2d trapeziform ; recurrent nervure interstitial ; pobrachial areolet 

 longer than the prsebrachial ; anal nervure not interstitial ; terebra 

 5 exserted. This genus approaches BJiogas and Heterogamns 

 more nearly than any of the preceding, but differs in the unique 

 structure of the maxillary palpi, the exserted terebra, and the 2d 

 cubital areolet, which is not exactly rectangular. 



1. Pelccystoma lutea, Nees. (PL III., figs. 6, Ga). 



Rogas luteus, Nees, Mon., i., 218 (excl. syuon.) ; 



Schaff., F. G., 156, 9. 

 Pelccystoma lutemn, Wesm., Nouv. Mem. Ac. Brnx., 

 1838, p. 92, pi., fig. 12 (wing) ; Eeinh., Berl. ent. 

 Zeit., 1865, p. 244, <? ? ; S. v. Voll., Pinac, pi. iv., 

 f. 1 (with details of maxillary palpus and antenna). 

 Bracon luteus, Eatz., Ichn. d. Forst., ii., 36, (? ? . 

 Testaceous ; antennae fuscous, excej)t at the base, 2d joint much 

 shorter than the 1st ; stemmaticum, mandibles at the apex, and 

 tips of the tarsi, black ; abdominal segments 1 — 4 rugulose ; tere- 

 bra $ hardly equal to \ of the abdomen. ^ $ . Ijength, 3 — 4 ; 

 wings, 6^ lines. 



Antennse 2 somewhat longer than the body, 5o-jointcd in one 

 British specimen ; mesothorax very convex, sutures distinct, sides 

 smooth, with an impressed line ; metathorax rugose ; 1st abdo- 

 minal segment with a bifurcate carina from the base to the middle ; 

 wings hyaline, stigma and nervures testaceous, 1st intercubital 

 transverse nervure somewhat oblique. The (J is similar. 



The right of this species to be considered British is 

 established by two females, one mutilated, in Fitch's 

 collection ; this was bred by Sang from a doubtful 

 Geometer feeding on fir, Ello})ia ■prosapiaria , L., Thcra 

 fii-mata, Hiib., or variata, Schiff. The other from Hetero- 

 genea limacodes, Hufn., by Piaynor on June 22nd. Pieissig 

 and Goureau have both reared it on the Continent from 

 this host. Wesmael describes also P. tricolor, not yet 

 known as British, having the first two joints of the 

 antennpe equal, and the abdomen fuscous in the middle, 

 which Giraud has likewise obtained out of Heterogenea. 



