BRITISH ICHNEUMONS. 57 



generally black, and the slightly exserted terebra of the ? , the paler 

 colour of the anterior legs and the small red circular thyridii of the S , will 

 serve to distinguish this species from its allies. The 6 closely resembles 

 those of C. sicarius and varipes. 



Stephens, who thought the female should be referred to the genus 

 Phygadeuon, on account of the slightly exserted terebra, found both sexes 

 rarely at Darenth Wood, &c., around London, in June and July. Bignell 

 took it at Plym Bridge, in May, and at Bickleigh, in S. Devon, early in 

 July. Mr. E. A. Butler has taken it at Highgate ; Mr. Piffard, at Pateley 

 Bridge, and Felden, in Herts. ; Mr. Dalglish, at Carnbuslang, in Lanark., 

 at the end of June ; Mr. Adams, at the end of June, in the New Forest. 

 I have frequently found it in Bentley Woods, near Ipswich, at Brandon 

 and Staverton, where it is not uncommon upon the undergrowth. It has 

 been bred on the Continent, where it is found, not uncommonly, in woods 

 and fields, from Lithosia riihricollis and Cidaria corylata, Thunb. (= rup- 

 iata, Hb.). 



6. nigritarius, Grav. 



Ichneumon nigritarius, Gr. Mem. Ac. Sc. Torin, 1820, p. 281 ; I. E. i. 1 13, form, 

 typ. ; Ste. 111. J\i. vii. 128, i ; Wesm. Nouv. Mem. Ac. Brux. 1844, pp. 68, 219 ; Bui. 

 Ac. Brux. 1848, p. 167 ; ///'. cit. 1857, p. 382 ; Ratz. Ichn. d. Forst. iii. 163 ; Holmgr. 

 Ichn. Suec. i. 138, excl. ? ; cf. Ent. Tidskr. 1880, p. 85 ; Thorns. Ann. Soc. Fr. 1S87, 

 p. II ; Berth, lib. cit. 1895, p. 258, i ^ . I. coinitator, Ratz, Ichn. d. Forst. i. 134, cf. 

 iii. 164, ? . CratichneiuHon nigritarius. Thorns. O. E. xviii. 1949, 6 9 ■ Var. Ichneu- 

 mon aethiops, Gr. I. E. i. 130 ; Ste. 111. M. vii. 132 ; Ratz. Ichn. d. Forst. iii. 166, {,. 

 I. annulator, var. 3, Gr. I. E. i. 147, excl. 9 orbitis frontalibus testaceis, 9 ; var. /. annu- 

 lator, var. i., Wesm. Nouv. M^m. Ac. Brux. 1S44, p. 67, S . 



? . Head black ; cribrary organs red ; cheeks and temples somewhat 

 inflated, angles of clypeus broadly rounded. Antennae incrassate, fili- 

 form, white-banded; the post-annellus longer than broad; fifth joint 

 quadrate. Thorax stout, slightly nitidulous ; mesothorax strongly punctate ; 

 areola sub-quadrate or slightly longer than broad, a little emarginate 

 apically, its costae complete and well defined. Scutellum black, strongly 

 punctate (var. Brischkei, Berth., has scutellum and post-scutellum red). 

 Post -petiole scabriculous, not smooth centrally, and somewhat broad ; 

 second segment very coarsely punctate, almost rugose at the base, not 

 shining ; thyridii and gastrocaeli not large though distinct ; segments two 

 to seven somewhat dull, gradually becoming more finely punctate towards 

 the apex ; basal segments black, or badious with the incisures paler ; 

 Wesmael says the seventh segment is often pale above. Legs black ; 

 femora stout, often red ; hind tibiae with a narrow white half-band in the 

 centre externally ; tarsi black ; hind coxae carinate, with small but distinct 

 grey-haired scopulae ; terebra hardly exserted. Wings a little clouded ; 

 stigma fulvous ; areolet narrowed above ; radius externally a little inflexed. 



6 . Head black ; palpi and mandibles rufescent ; face black or with 

 orbits white ; vertex immaculate. Antennae black, rufescent beneath ; 

 broadly banded with pure white. Thorax black, rarely white-marked at 

 radix ; areola sub-quadrate. Abdomen black, with anterior incisures or 

 several segments rufescent ; post-petiole finely aciculate, sometimes sub- 

 rugose ; gastrocaeli sub-obsolete ; segments two to six parallel-sided. Legs 

 for the most part black, hind tibiae rarely centrally red ; Gravenhorst says 

 anterior femora pale beneath, tibiae rufescent above, paler below; hind 



