BRITISH ICHNEUMONS. I53 



flavous or with only a basal black mark, the intermediate broadly red 

 apically ; 'the $ has the vertex of the head narrower ; scutellum white, 

 somewhat strongly elevated ; abdomen broader, the gastrocaeli and thyridii 

 rather larger, the latter hardly narrower than the rugosely punctate inter- 

 vening space, fifth segment with a small transverse and the sixth and 

 seventh with larger white marks ; c? flagellum is piceous beneath the 

 scape, clypeus and sides of the face broadly pale yellow, segments two 

 and three red, sometimes seven or also six, white-marked. 



It should be remembered that Iclineumon raptorius, of Linnaeus, is said 

 to be Spilichiieumon Grave ?ihorsti, of AVesmael, and quite distinct from 

 the present insect, which was renamed I. Nereni by Thomson, because 

 Gravenhorst had mistaken Linnaeus' species. Berthoumieu believes the 

 Linnean species to be neither of these ; undoubtedly the present is that 

 described by Gravenhorst, as proved by Wesmael, and if the Linnean /. 

 raptorius prove to be an Amblyteles, I see no reason why it also, being 

 included under a different genus, should not stand. 



Stephens, who certainly does not refer to the species as we now under- 

 stand it, says it is abundant about London, at the end of summer, and 

 common at the roots of trees in the winter, but neither Bridgman nor 

 Bignell seem to have taken it. On the Continent, where it appears to be 

 very common, it has been bred from Satyrus Janira and Liparis ?nonacha. 



45. submarginatus, Grav. 



Ichneumon suhinarginaliis, Gr. I. E. i. 244 ; Ste. 111. M. vii. 155, ? ; Wesm. M^m. 

 couron. Ac. Eelg. 1859, p. 28 ; Thorns. O. E. xviii. 1937 ; Berth. Ann. Soc. Fr. 1894, 

 p. 596,(5 9. /. subreptoriits, Wesm. Bui. Ac. Brux. 1855, p. 374,?; Holmgr. Ichn. 

 Suec. i. 125, i 9 . 



Head a little narrowed behind the eyes ; 9 ^pex of palpi, mandibles 

 centrally and the frontal orbits, sometimes red ; $ palpi piceous and facial 

 orbits narrowly flavous. Antennae stout, setaceous, dilated towards apex, 

 basal joint of flagellum twice longer than broad, black ; of ? white-banded, 

 of $ with flagellum ferrugineous beneath. Thorax of $ with white lines 

 beneath the radix ; metanolum with complete upper areae, of which the 

 areola is sub-quadrate, apically scalloped. Scutellum convex, sparsely 

 punctate ; entirely, or in ^ apically, white. Abdomen lanceolate-oval in 

 (?, sub-ovate in 5 ; black, second segment badious, with its base centrally 

 and the lateral margins sometimes rufescent, two to four with apical margin 

 red, paler in ? , wliich sex alone has the fifth with a minute and six and 

 seven with larger stramineous marks ; post-petiole aciculate, gastrocaeli 

 normal, sub-circular, the intervening space rugosely punctate in $ , coarsely 

 aciculate in $ ; terebra very slightly exserted. Legs black ; front femora 

 apically, tibiae except generally apices of the intermediate and always apical 

 half of hind ones, and tarsi except apex of hind ones, red. Wings slightly 

 clouded ; stigma reddish, tegulae darker. Length, 10-14 ri""''i- 



Wesmael thought the coloration of the ? nearly identical with that 

 of /. cotnputalorius. from which, he says, it may be known by its more 

 slender antennae, more convex scutellum, its shorter and quite quadrate 

 areola, and by the shorter, more ovate abdomen. 



Holmgren points out that the $ is also very like that of / conipnta- 

 toriiis, but the thorax is obviously higher in front, and adds the ? may be 



