Exenterus | BRITISH ICHNEUMONS. 207 

the body, nigrescent, becoming rufescent apically beneath, with g scape 
flavous beneath. Thorax stout, somewhat narrower than head, shining 
and finely punctate ; notauli distinct; an elongate callosity before radix, 
sometimes apex of pronotum and in ¢ mesopleural marks, flavous; 
metathorax with five distinct areae, of which the areola is subhexagonal 
and a little longer than broad and the lateral areae transverse. Scutellum 
apically strongly depressed and, like the whole postscutellum, flavous ; 
scutellar margins laterally subelevated. Abdomen fusiform or oblong- 
ovate, black with segments two to four transverse and bright red; apical 
margins of remaining segments broadly white; basal segment finely rugu- 
lose, gradually dilated apically, centrally sulcate with carinae extending 
beyond its centre. Legs normal; the anterior red, with coxae and base 
of trochanters nigrescent or in @ flavous; hind legs entirely infuscate- 
black, or in @ with tibiae basally red. Wings hyaline, tegulae flavous, 
stigma infuscate, areolet subsessile and triangular; nervellus intercepted 
a little below its centre. Length, 7—10 mm. 
The stout conformation and brilliant colours of this species render it 
distinct from all but Z. prc/us, of which I believe it to be a mere colour 
variety. . 
Stephens described this species from unlocalised material in Shuckard’s 
collection and it was synonymised by Marshall with 7ryphon colorator, the 
type of which was taken by Zetterstedt in Lapland during August, and 
examined by Holmgren; elsewhere it has only been noticed by Brischke 
in Prussia. ‘There are two old specimens on bead-headed pins and one 
labelled ‘“* Woking, September, 1890” in Marshall’s collection; and it is 
probably rare since no one else has found it here, though I possess three 
fine females, captured by Miss Ethel Chawner in the New Forest about 
1895, and another, which I swept from Zznarva vulgaris in the Bentley 
Woods on 22nd September, 1899. 
6. phaeorrhoeus, Hal. 
Cteniscus phacorrhoeus, Hal. Ann. Nat. Hist. 1839, p. 113, ¢. 
Abdomen apically fulvous. Anterior legs ferrugineous, basally black. 
Length, 6 mm. 
Haliday gives no locality; but, from his MS. in the Dublin Museum, it 
is evident that he himself took it commonly in Ireland. I know no other 
species of this group with the anus entirely fulvous and, consequently, 
here place a female taken on 18th June, 1907, at the “trap” in Mr. 
Adams’ garden at Lyndhurst in the New Forest; it agrees perfectly with 
Haliday’s description, given above, excepting in having the scutellar and 
postscutellar apices, whole mouth with centre and sides of the face, 
flavidous ; the abdomen is pale red from apex of second segment, and the 
hind legs are black with only extreme base of their tibiae whitish. 
7. pictus, Grav. 
Tryphon pictus, Gr. I. E. ii. 288, 9. Exenterus similatorius, Schiéd. Guér, 
Mag. 1839, p. 10, nota. E. pictus, Holmgr. Sv. Ak. Handl. 1855, p. 238, ¢ ?. 
Cteniscus pictus, Brisch. Schr. Phys. Ges. Kénig. 1871, p.98; Schr. Nat. Ges. 
Danz. 1892, p.42; Thoms. O. E. ix. 892, ¢ ?. 
A shining, punctulate and shortly pubescent, black species with centre 
of abdomen red. Head distinctly a little dilated posteriorly ; mouth, cly- 
