ICHNEUMONID>E. ICHNEUMON. 127 



rougfi and opaque, supported by a rather long, linear peduncle, having an 

 obtuse angle in its middle : apex of the abdomen rather acute : ovipositor 

 concealed, or merely exposed at the apex : luiiigs moderate, the cellule* for 

 the most part 5-angular, rarely 3-angular, or pyramidal, or somewhat 

 4-angular : legs moderate. 



Of this fine genus, which embraces many of the more conspicuous 

 insects of the family, above 200 species appear to occur in Britain : 

 the principal characters of distinction, as pointed out by Graven- 

 horst, consist in the abdomen being oblong or subovate, with its first 

 segment somewhat globulous and rough, the peduncle long, linear, 

 and bent ; the cellule (or second submarginal areolet) tending to 5- 

 angular ; the antennse and legs of moderate length ; and the ovipo- 

 sitor hidden, or but very slightly exposed. 



§ I. ScuteUum and abdomen entirely black, or dark. 



Sp. 1. Monticola. Niger, metathorace suhspinoso, abdomine airo-ccerideo, 

 antennis albo aimulatis. (Long, corp.8 — 9lin.; Exp. Alar. 12 — 13 lin.) 



Tr. Monticola. Gravenhorst, i. 108. — Steph. Nomen. 2d. edit. col. 131. 



Black: antennse with the 10th to 18th joints white; metathorax shagreened 

 with two acuminated tubercles ; abdomen deep blue, with the 1st segment 

 deeply channelled, the 2nd punctured and somewhat opaque, the rest 

 shining : anterior legs with the tibite and tarsi straw-coloured in front ; 

 wings hyaline, slightly stained, stigma ferruginous ; scales and costa black ; 

 cellule 5-angular. 

 This fine insect appears to be very rare ; the only examples I 



have seen were captured in South Wales, in July. 



Sp. 2. comitator. Niger, orbitis ocidorum internis pallidis, antennarum annulo 

 albo. (Long. corp. 5—7 lin.; Exp. Alar. 9 — lO^lin.) 



Ic. comitator. Linne.— Steph. Catal. 346. No. 4322. 



Black : inner orbits of the eyes above more or less whitish, or ferruginous, 

 and sometimes a minute dot on the occipital edge; antennae half the length 

 of the abdomen, the tip curved inwards, the 9th to 15th articulations white 

 above and on the sides, the following rusty or fuscous beneath; abdomen 

 oblong-ovate, black or bluish, the 2nd segment sometimes of a dusky-black, 

 with the extreme margins chestnut ; anterior legs with the apex of the 

 femora, and their under side, and that of the tibiae dull-yellowish, the last 

 sometimes fuscescent ; middle femora at the apex beneath, and the tibiae 

 beneath, rusty; posterior for the most part black, the femora beneath and 



* The small areolet on the disc of the anterior wings, or the central sub- 

 marginal one, when 3 are present, represented in plate xxxix., beneath the 

 figures. 



