BRITISH ICHNEUMONS. 



flated ; $ with internal orbits broadly white, 3 with palpi, mandibles in part, 

 clypeus and face laterally, frontal, post-ocular, and a dot at vertical orbits 

 white. Antennae slout, l)lack, scape of ^ more or less pale beneath ; 

 white centrally above in 9 • Thorax with pronotum, callosities before and 

 beneath radix in ^, and beneath only in $, and the scutellum entirely or 

 apically, white ; metathorax obtusely bidentate. Abdomen brick-red, first 

 segment almost entirely black. Legs black ; anterior with marks on coxae, 

 femora and tibiae in front, and the tarsi, stramineous, the last being darker 

 in $ ; hind tibiae and tarsi, except apices, fulvous. Wings infumato- 

 hyaline, darker towards apex ; stigma reddish ; tegulae black, sometimes 

 externally paler. Length, 18-23 '^'^'i- 



This is the species hitherto referred to in Britain as /. similatorius, but 

 since Thomson has pointed out the true synonymy (Joe. cii) no further 

 confusion need exist. 



It is possible, though improbable, that Stephens discriminated correctly 

 between the species of this group ; in any case, he says, the present is rare 

 about London, and I know of but few records in Britain. It occurs all 

 over Europe, and has been bred from Sphinx pinastri and Hadena pisi. 



3. erythrogaster, Steph. 



Ichnettmon fusoritis, Coq. Ic. 12, pi. xi. fig. 5 (?). /. erythrogaster, Ste, 111. M. vii. 

 188, 9; cf. Mori. E.M.M. 1902, p. 120. I.fiisorun, var. i, Wesm. Nouv. M^m. Ac. 

 Briix. 1844, p 24, (5 ? ; Bui. Ac Brux. 1857. p. 363. /. Coqueberti, Wesm. Bui. 

 Ac. Brux 1848, pp. 144, 355 ; lib. cit. 1849, P 3^ ; Holmgr. Ichn. Suec. i. 13, excl. 

 ? ; cf. Ent. Tidskr. 18S0, p. 23, et Thorns. Ann. Soc. Fr. 1886, p. 14 ; Berth, lib. 

 cit, 1894, p. 523, i ? . Protichneiiinoii Jesperi, Thorns. O. E. xviii. 1900 (part). 



Much resembling the preceding species, but slightly smaller and more 

 slender. Head black, hardly narrowed behind the eyes ; cheeks very 

 little inflated ; clypeus apically truncate, bi-foveolate ; ? with palpi and 

 labrum piceous, frontal orbits narrowly and a vertical dot, white ; $ with 

 face and clypeus white, the former sometimes centrally black. Antennae 

 stout, black, strongly attenuate, and somewhat compresso-dilated before the 

 apex ; second flagellar joint more than twice the length of the first ; white 

 centrally above in 9 only. Thorax rather narrower than head, punctate ; 

 rarely entirely black, usually with callosities before and beneath radix and 

 the scutellum white ; metathorax rugulose, upper areae complete ; areola 

 semi-elliptic, apically emarginate. Abdomen brick-red, first segment black ; 

 post-petiole rugose, somewhat aciculate in ? ; gastrocaeli rather large and 

 deep, triangular ; intervening space sub-aciculate. Legs black ; anterior 

 coxae often white-marked in c?, their femora in front, tibiae and tarsi 

 pale ; hind tibiae entirely piceous or slightly castaneous centrally. Wings 

 clouded, somewhat fulvo-hyaline ; stigma reddish ; tegulae black. Length, 

 18-20 mm. 



Very like P. pisoriiis, but differs from it in having the posterior tibiae 

 nearly black, the antennae not spiral, and the areola broader. This is 

 distinct from /. Jesperi, Holmgr., in which the S has white-banded an- 

 tennae, and the $ a posteriorly truncate areola. 



Stephens says the hind tibiae of his /. erythrogaster ^xe "fuscescent, with 

 a slightly paler tint towards the base on the outside," and since no doubt 

 can remain both from his description and from the type in the National 

 Collection that /. Coqueherti is the species he refers to, the earlier name is 



