26 BRITISH ICHNEUMONS. 



apically flavous, their tibiae in part white ; hind tibiae with a broad con- 

 spicuous white band before the base ; tarsi not pale-marked ; anterior coxae 

 entirely black ; $ scopulae short and distinct. Wings a little clouded ; 

 stigma piceous ; sides of areolet almost contiguous above. Length, 

 14-18 mm. 



The variety /. sub^^^uitatus has a minute white dot on either side of the 

 first, and sometimes also of the second segment, which affiliates it with the 

 preceding species of this genus, from which, however, the distinct tibial 

 band at once distinguishes it ; the post petiole is said to be also narrower 

 than in the type form. 



This species may be distinguished by the lateral glabrosity of the 

 antennal scrobes ; by the distinct tufts on the ? hind coxae ; and the white 

 apex of the scutellum, which last appears to be, as is not often the case, a 

 pretty constant marking, although I possess a $ in which it is absent. 



From Eupalatims oscillator^ ^Vesm., to which it bears some resemblance, 

 it may be at once distinguished by the aciculate post-petiole of the ? , and 

 by the quadrate areola of the $ . 



Taken near London and in Salop, in June (Stephens) ; not very common 

 in Devon (Parfitt) ; captured at Slade, Cornwood, 20th August (Bignell) ; 

 Swansea, in August (Beaumont); Maldon, in Essex (Harwood); Miss 

 Chawner has taken both sexes in the New Forest, where I also met with it, 

 at Lyndhurst, in Mr. F. C. Adams' garden. A series was bred in Britain, 

 from larvae oi Acronycta myricae {cf. Ent. Rec. v. p. 19 ; and E.M.M. 1896, 

 p. 93). It has also been bred on the Continent, where it is common, from 

 an unidentified Nodua. The variety subguttatus has been bred from an 

 unknown host and captured at Alphington, in Devon (Parfitt). 



5. periscelis, Wesm. 



Ichneumon pallifrons, Gr. I. E. i. 117 ; Ste. III. M. vii. 129 ; excl. i . I. fiistipes 

 var. 2 bis, Wesm. Mem. couron. Ac. Beli^. 1859, p. 59, 9. /• periscelis, Wesm. Nouv. 

 Mem. Ac. Brux. 1S44, p. 32, 9; Ilolmgr. Ichn. Suec. i. 42; Berth. Ann. Soc. Fr. 

 1894, p. 550, (5 9. /. dubius, Tisch. Stett. Zeit. 1876, 9. I. falcatus, Tisch. ///'. cit. 

 1873, i' Coelichneiunon periscelis, Thorns. O. E. xviii. 1905, <J 9. 



Much resembles the last-described species, but is at once known by the 

 characters given. Dull, finely punctate, Head black, somewhat buccate ; 

 cheeks and temples finely and isolatedly punctate ; mandibles and angles 

 of clypeus rufescent ; frontal and a point at the vertical orbits of $ , palpi, 

 mandibles, clypeus, and face of 6 also, white. Antennae a little dilated, 

 attenuate ; ? white-banded ; 6 scape pale flavous, and flagellum reddish, 

 beneath. Scutellum entirely black in both sexes. Thorax entirely black 

 in $, lines at radix white in $ ; metathorax alutaceously punctate; upper 

 areae complete ; areola emarginate posteriorly. Abdomen bluish-black, 

 second segment sometimes apically rufescent in $ ; gastrocaeli large ; 

 post-petiole aciculate, sometimes bi-maculated with white in S. Legs 

 black ; anterior tibiae internally whitish, hind ones with a broad, con- 

 spicuous white band ; anterior coxae white-marked in c^ ; hind ones with 

 no trace of scopulae. Wings sub-hyaline ; stigma piceous ; sides of areolet 

 narrowed, though not contiguous, above. Length, 12-18 mm. 



The ? is very similar in general facies to that of C. leucocenis, from which, 

 however, it may with ease be distinguished by the simple posterior coxae, 



