36 BRITISH ICHNEUMONS. 



The only specimens of this species I have seen were bred from Orihosia 



zipsilon, at Blackheath ; by I\Ir. Musham, at Lincohi, from Deilephila 

 euphorbiae, in June ; and by myself, at the end of April, from a Noctua 

 pupa found under aspen bark, at Brantham, in Suffolk. It would appear 

 to be known on the Continent only from Sweden. 



i6. albicillus, Grav. 



Ichneumon albicillus, Gr. M^m. Ac. Turin, 1820, p. 287; I. E. i. 177 ; Ste. 111. M. 

 vii. 141 ; Wesm. Mem. couron. Ac. Belg. 1859, p. 21 ; Berth. Ann. Soc. Fr. 1894, p. 

 550, S ; if. Thorns. O. E. xviii. 191 1. 



Body somewhat slender. Head black ; palpi, mandibles, cheeks, orbits 

 of eyes and most of face, white. Antennal scape white beneath. Thorax 

 with lines before and beneath radix white. Scutellum with basal carinae 

 and lateral margins, as well as post-scutellum, white. Abdomen blue-black, 

 strongly punctate, segments two to six a little deplanate dorsally and nar- 

 rowly red-margined ; post-petiole aciculate ; gastrocaeli large and deep. 

 Legs black ; front coxae white, anterior femora and tibiae flavous, with 

 whitish tarsi ; hind femora castaneous internally, piceous without, their 

 tibiae and tarsi fuscous. Wings sub-hyaline ; areolet deltoid ; stigma flavo- 

 fuscous ; tegulae white. Length, 11-14 mm. ; $ unknown. 



This species is very like some forms of C. lineator, from which, however, 

 the more parallel-sided body, more strongly punctate abdomen, and entirely 

 white cheeks appear to render it distinct. 



Stephens says, " Rare ; taken near London, in July." It is also rare on 

 the Continent, having been found only in Piedmont, and has never been 

 bred. 



17. moestus, Grav. 



Ischiius moestus, Grav. I. E. i. 653, $ , Ichneumon moestus, Wesm. Eul. Ac. Brux. 

 1857, p- 357 ; Berth. Ann. Soc. Fr. 1894, p. 553, <? ? . 



Head large, black; clypeus bisinuate ; cheeks inflated; mandibles and 

 apex of clypeus red ; palpi, internal and external orbits flavous ; $ also with 

 the whole of the clypeus, of the face and of the cheeks, white. Antennae 

 setaceous, hardly dilated, white-banded in $, scape white beneath in $. 

 Thorax black, pronotum and lines at radix white ; $ with a mesopleural 

 line, also white. Scutellum with lateral margins and sometimes its apex 

 white, $ always with its apex and that of the post-scutellum white. Ab- 

 domen entirely black, twice the length of the thorax ; post-petiole aciculate ; 

 gastrocaeli very large, the intervening space always finely punctate ; in- 

 cisures conspicuously shallow. Legs red ; hind coxae and tarsi black ; 

 anterior coxae and trochanters more or less white in $\ hind coxae closely 

 punctate, with no scopulae. Wings sub -hyaline ; stigma and tegulae 

 piceous in ^ , latter white in $ ; areolet deltoid. Length, 8-10 mm. 



No doubt remains, from the linear spiracles, depressed scutellum, and 

 the conformation of the clypeus and petiole, that this species is not referable 

 to Ischmis, as Gravenhorst thought. It differs, nevertheless, from all the 

 species of the present genus in having the central abdominal incisions not 

 deeply impressed, and the finely punctate base of the second segment is 

 also most distinctive. I do not find the areola described. 



It is apparently a rare species on the Continent, being known only in 



