The Enemies of the Wheat Fly, 



453 



Fig. 1. Platygaster Tipulce. 



named by Mr. Kirby Ichneumon Tipulce, and is uow described 

 as the — 



1. P. Tipuiae. fig. 1 ; a, the 

 natural size. — Female pitch- 

 coloured, shining : antenna3 nearly 

 as long as the body, inserted at 

 the lower part of the face, slender, 

 clavate, geniculated or angulated ; 

 as if broken, slightly pubescent ; 

 ochreous, and ten jointed, the four 

 terminal joints brown and obov- 

 ate, the apical one conical ; basal 

 joint long, curved, and clavate ; 

 second and third subovate, the latter very slender ; fourth a little 

 longer ; fifth and sixth minute (fig. b) ; head black, subglobose, 

 thickly and finely punctured, with a minute tooth between the 

 base of the antennae ; eyes oval and lateral, ocelli large and placed 

 nearly in a straight line across the crown ; thoi^ax somewhat glo- 

 bose with minute pale pubescence ; ecutellum horizontal, long, 

 conical, and mucronated ; the spine ferruginous ; abdomen small, 

 scarcely larger than the thorax ; slightly depressed, obovate, black 

 and very shining, attached by a short stout pedicel which is fer- 

 ruginous at the base ; the second segment forms a convex shield, 

 which nearly covers the back, with three or four rings towards 

 the apex ; the flexible tip is armed with a very long curved ovi- 

 positor, like a hair, which is concealed in the abdomen when at 

 rest : the four wings transparent, iridescent, pubescent, and cili- 

 ated, destitute of nervures, the superior much the largest, the auex 

 quite round : leg strong, bright ochreous ; thighs thickened at their 

 extremities ; tibiae spurred at the apex, very clavate, hinder with 

 the knob sometimes fuscous ; tarsi slender and five-jointed. " Male 

 black, shining, very smooth, sparingly clothed with short pubes- 

 cence : head excessively finely punctured, slightly shining : eyes 

 and ocelli pitchy black : antennae pitchy, first to fifth joints red- 

 dish : apex of scutellum fuscous ; metathorax and first abdominal 

 segment rough, obscure, pilose : abdomen smooth, shining ; second 

 segment with two little pits at the base ; legs pale reddish ; hinder 

 tibiae and apex of tarsi pitchy : wings somewhat transparent : 

 scales pitchy." 



" It seems that the males do not differ, except in a trifling deo-ree, 

 in the structure of the horns, in which, I believe^ the fourth joint is 



