@he Aeientific Engnirer. 
- AUGUST, 1888. 
A Short Sketch of the Ichneumons. 
By G. H. Bryan, B.A. 
CHAPTER II. 
E now pass on to the group TRYPHONID#, of 
which Colpotrochia elegans may be taken as an 
example. Its colour is shining black, with sulphur- 
yellow markings. Its legs are short and stout in 
proportion, and it has a short transverse nervure in 
the discal areolet. 
The Pimpiip# are characterised by their sessile and flattened 
abdomen, of which the extremity is, in the female, prolonged into 
a tail, sometimes short, sometimes of considerable length, and 
containing the ovipositor. The fore-wings possess three posterior 
marginal cells, of which the middle one is nearly triangular. 
The scutellum is roundish. 
The genus /imd/a is distinguished by the knobs on the upper 
side of the abdomen, and by the long ovipositor, which is 
developed into a boring apparatus, and which is covered by the 
tail. The colour of these animals is black, red, bright yellow, or 
white, never of a muddy yellow, thereby differing from the genus 
Theronia, in which the body is coloured muddy-yellow. 
Pimpla varicornis is black, legs red, with pale rings on the hind 
tibice and tarsi, also on the antenne. ‘There are similar yellow 
lines on the face in the male sex. The extremity of the scutellum 
is yellow, which colour prevails more or less on the thorax, there 
being two yellow lines across the latter between the bases of the 
wings. The first segment of the abdomen is hollowed out on the 
Vou. III. 8 
