Catalogue of British Ichneumonidcs. 145 



with the two transverse lines distinct, between them fine 

 longitudinal rugae ; in the male there are scarcely any 

 rugae, but the lateral lines are perceptible, forming a 

 supero-medial area, longer than broad, wider in front 

 than behind, rounded in front ; back part with the two 

 central longitudinal lines ; thorax a little longer than 

 high ; metathorax of ordinary length, back part nearly 

 upright. Legs slender. Wings, the outer nervure of 

 areolet wanting, or so thin as to be hardly visible, the 

 exterior inferior angle of the discoidal cell quite beyond 

 the corresponding angle of the areolet, no trace of nerve- 

 let, transverse ordinary interstitial, transverse anal 

 nervure of hind wings, before the fork, divided one-third 

 from the bottom ; emitting nervure indistinct. Abdo- 

 men, 1st segment without projecting spiracles, faint in- 

 dications of them in the female, gradually widening from 

 base to apex, finely aciculate in the female, aciculations 

 hardly visible in the male, but in the centre of the post- 

 petiole a distinct oval pit ; 2nd segment aciculate, the 

 aciculations caused by punctures running into one 

 another, quadrate in the male, about one-fourth wider 

 than long in the female ; the remaining segments of 

 both sexes transverse, the 3rd segment of the female the 

 widest ; abdomen of male cylindrical from the 2nd seg- 

 ment ; 3rd distinctly punctate, apical margins of 1 to 3 

 and remaining segments entirely polished, but with fine 

 hairs, and their pits, these not dense, a slight transverse 

 depression before the apex of the 2nd and 3rd segments ; 

 aculeus one-third the length of the abdomen. 



? . Scape of antennae beneath, and a distinct fine 

 line on apical margin of all the abdominal segments, 

 except the 1st, pale straw-colour ; legs pale fulvous ; 

 front and middle coxae, and all the trochanters, yellow ; 

 front and middle tarsi dark at the apex ; intermediate 

 knees and apex of tibiae brownish ; hind legs, coxae 

 black, femora slightly browned above, extreme knees, 

 apex of hind tibiae and tarsi black-brown ; tegulae, stigma, 

 and base of wings pale yellow, nervures brown. Male 

 only differs from the female in having the yellow bands 

 of the abdomen less distinct, and the abdomen more 

 pubescent. Length, 4 — 5 mm. 



Taken by Mr. P. Cameron. 



