142 BRITISH ICHNEUMONS. 



Ilolmgr, Ent. Tidskr. 1880, p. 82, <J ? . (?) Tragus dissiiimlalor, Ste. 111. M. vii. 272 ; 

 cf. Mori. E.M.M. 1902, p. 121. 



6. Head black; palpi, mandibles centrally, clypeus and face for the 

 most part, llavous. Antennae black, scape flavous beneath. Thorax 

 black, pronotum and callosities at radix fiavidous ; metathorax dorsally 

 dull, laterally obsoletely bidentate ; areola* large and slightly transverse, 

 sub-rectangular, rounded in front. .Scutellum, and sometimes postscu- 

 tellum, flavous. Abdomen fusiform, black ; segments two to four flavous ; 

 their apices triangularly black ; anus immaculate ; post-petiole dull black, 

 finely aciculate ; gastrocaeli of normal size, a little broader than the inter- 

 vening space, which is aciculate. I^egs black ; marks on anterior coxae, 

 as well as all the tibiae and tarsi, excepting apices of hind ones, flavous. 

 Wings somewhat clouded, stigma and tegulae piceous. Length, 19 - 2 j mm. 



[Since Wesmael's query of 1859 : " Get Ichneumon ne serait-il pas le 

 male de VI. didyunis ? ? " has never been satisfactorily answered, I have 

 here quite tentatively considered it to be such. 



? . /. didyinus, Grav. : — Head black, frontal orbits sometimes red ; 

 temples not narrowed behind the eyes. Antennae stout, white-banded, 

 often ferrugineous basally below. Thorax black ; pronotum sometimes 

 red and humeral callosities rufescent or flavidous ; areola transverse, in- 

 complete apically. Scutellum strongly convex, yellow. Abdomen broadly 

 oblong-oval, black ; second segment with two marks and the apical margin 

 red, rarely entirely black ; five generally, six and seven always, dorsally 

 white ; post-petiole finely aciculate ; gastrocaeli normal, not transverse. 

 Legs black, tibiae and tarsi, excepting apices of hind ones, red ; hind 

 coxae not scopuliferous. Stigma clear red. Length, 18-20 mm. It is 

 recorded only from northern France, Germany and Finland] 



Hope captured both the original males at Netley ; Newman took T. 

 dissiiimlator at Birch Wood ; Stephens says they are rare near London, 

 in June, as well as in Salop ; and Bignell has bred it early in July, from 

 Vanessa tirlicae, in South Devon. On the Continent it occurs only in 

 France and Holstein. I know of no indigenous records of /. didymus. 



32. bellipes, IVesm. 



Ichneumon bellipes, Wesm. Nouv. Mem. Ac. Brux. 1844, p. 38 ; Berth. Ann. Soc. 

 Fr. 1894, p. 621, excl. i . 



5 . Body stout. Head black ; mandibular mark and sometimes the 

 juxta-antennal orbits of eyes red ; clypeus apically marginate, centrally 

 depressed and aciculate. Antennae stout, distinctly attenuate ; fifth fla- 

 gellar joint quadrate ; white-banded or tricoloured ; scape in part red. 

 Thorax black, pronotum obsoletely rufescent, sometimes a line beneath 

 and a dot before radix whitish ; notauli and sternauli indicated ; areola 

 nearly twice broader than long, apically broadly rounded ; apophyses 

 sub-obsolete ; costulae entire ; petiolar area sub-entire. Scutellum white ; 

 sub-glabrous, with a few dark setae, centrally de])ressed. Abdomen elon- 

 gate-ovate, stout, somewhat apically obtuse, black ; segments two and 

 three, or two to four, red, five to seven dorsally white ; post-petiole not 

 very finely aciculate, laterally rugose ; gastrocaeli somewhat large, deeply 

 impressed, rugose, and about as broad as the intervening space, which is 

 evenly punctate and narrower than centre of post-petiole. Legs clear 



