BRITISH ICHNEUMONS. 



above. Wings hyaline ; stigma and tegulae of ? piceous ; areolet some- 

 what narrowed above. Length, 6-8 mm. 



The extent of the red on the thorax and face of the ? varies ; the <? 

 may have all the coxae black and two black lines on the face ; or the fifth 

 segment entirely, and a mark on the fourth, black ; both sexes sometimes 

 have the face and hind femora nearly entirely black. 



The thoracic tubercle and the transverse thyridii, which are not smaller 

 than the intervening space, the head narrowed behind the eyes, the un- 

 discreted clypeus, besides the arrangement of the white markings will 

 render it distinct. The superficial gastrocaeli, dullish mesonotum, sub- 

 quadrate areola and posteriorly narrowed head, ally it with Stenichneumon 

 pictus, Grav. Superficially it somewhat resembles Hoplismenus uuigutiatiis, 

 which, however, has the scutellum strongly convex and no prothoracic 

 tubercle. 



Bridgman took the male, at Eaton, in July; and Bignell found the species 

 at Langstone, Horrabridge, on 23rd August, and at Laira ; I possess an 

 example taken at Felden, in Herts., on 8th August, by Mr. Albert Piflard. 

 It is probably not very common in Britain, and does not appear to have 

 been here noticed by the older authors. 



4. sexalbatus, IVesvi. 



Ichneumon sexalbatus, Gr. I. E. i. 346, ? (?) ; Wesm. Nouv. INIcjm. Ac. Brux. 1S44, 

 p. 95 ; Bui. Ac. Brux. 1S48, p. 46 ; Mem. couron. Ac. Belg. 1859, p. 41 ; Berth. Ann. 

 Soc. Fr. 1895, P- 252, i 9 ; cf. Thorns, lib. cit 1888, p. no. /. sedulus, var. 5, Gr, 

 I. E. i. 496, 6 . /. lepidus, Gr. lib. cit. 349, excl. i . 



Very like B. ificubiior ; the puncturation is close, and the pubescence of 

 the male white. Head finely punctate, black ; palpi, frontal and vertical 

 orbits, white ; $ also with mandibles entirely, clypeus and face laterally, 

 and external orbits in part, white. Antennae black, of ? sub-filiform, 

 setaceous and white-banded, of $ fulvous, with the scape usually white- 

 marked beneath. Thorax somewhat shining, black ; pronotum and cal- 

 losities before and beneath radix, white, or in ? fulvous ; $ often has two 

 white dots on the metathorax, and the spiracles linear ; areola sub-cordi- 

 form, in ? apically emarginate. Scutellum white, of $ basally black ; 

 post-scutellum sometimes red or white. Abdomen red ; first and seventh 

 segments, and sometimes sixth, black ; first with the apical angles rarely 

 white, and seventh rarely with a white dot in S ; sixth and seventh white- 

 marked in $ ; gastrocaeli small ; post-petiole distinctly punctate. Legs 

 black, with anterior femora mostly, and tibiae, except apices of hind ones, 

 red ; anterior tibiae of $ flavous in front, its hind tarsi piceous ; coxae 

 black, not red, closely punctate, hind ones of ? with small white scopulae, 

 anterior of $ in part white ; femora stout. Wings of $ with tegulae 

 and radix white, and stigma black ; stigma of ? piceo-rufous. Length, 

 8-10 mm. 



The British example of the male differs slightly from the above descrip- 

 tion of authors in having : — The mandibles entirely ferrugineous, the 

 capital and thoracic markings flavidous, the scape immaculate, the tegulae 

 piceous with white lunulae in front and radix fulvous, and, though the 

 gastrocaeli are small, the thyridii are as deep and nearly as broad as in 

 £. ificubilor, nevertheless " intervallo inter gastrocoelos paulo latiore," as 



