BRITISH ICHNEUMONS. 201 



2. confector, Grav. 



Ichnejivion confector, Gr. I. E. i. 579 ; Ste. 111. M. vii. 201, 9 ; cf. Wesm. M^m. 

 couron. Ac. Belg. 1859, p. 70. Ceutctenis confector, Brisch. Schr. Nat. Ges. Uanz. 

 187S, n. 6, p. 53 ; Holmgr. Ichn. Suec. iii. 373 ; Thorns. O. E. xv. 1638 ; Berth. Ann. 

 Soc. Fr. 1896, p. 338, excl. var. ; (J 9 . C. picticollis, Wesm. Nouv. JNlt^m. Ac. Brux. 

 1S44, p. 177, excl. 6 . 



This species very closely resembles the preceding, from which it may be 

 known by its colour, more distinctly excavate frons and the thyridii of the 

 $1 , which are distinctly traceable, translucent and somewhat remote from 

 the base of the second segment. In colour both sexes differ in the 

 anterior coxae and trochanters being entirely or partly red ; the ? has 

 the clypeus often apically or entirely red, the scape red, the pronotum 

 and sometimes elongate lateral callosities red ; the $ has the pronotum 

 immaculate, segments two to four discally black, the third alone being 

 sometimes entirely, like the hind femora, red. Length, 6-7 mm. 



The red scape of the ? and the conformation of the $ thyridii should 

 be especially noticed. 



Taken in August, 1834, in the gardens of the Hermitage (Stephens). 

 Mr. Beaumont took this species at Kilmore towards the end of August 

 and Mr. Piffard, at Felden, in Herts. ; I have found it in a garden at 

 Lyndhurst, in the New Forest, in August. It is common on the Con- 

 tinent, where Brischke bred it, in Prussia, from the pupa of Nonagria 

 geminipimcta ; in France it is found with C. celerator in July, but is said 

 to be of rarer occurrence. 



3. opprimator, Grav. 



Ichneumon opprimator, Gr. Mem. Ac. Sc. Torin. 1820, p. 355 > !• E. i. 595 '■> ■'^te. 

 111. M. vii. 203, excl. i. Centeterus opprimator, Wesm. Nouv. Alem. Ac. Brux. 1844, 

 p. 178, (J 9 ; Holmgr. Sv. Ak. Handl. 1854, p. 45, 9 ; Ichn. Suec. iii. 374 ; S. v. Voll. 

 Schets. I. pi. iii. f. 15 ; Thoms. O. E. xv, 1638, c5 9. 



From the last-described species, this may be known by its more strongly 

 punctate and less deeply excavate frons ; the ? has the scape sometimes 

 more or less red and the flagellum bicoloured, the pronotum red, the basal 

 segment entirely black and the hind legs more broadly black-marked ; the 

 thyridii of the $ are entirely wanting and its central segments are more 

 broadly black discally ; the anterior legs in both sexes are red and the 

 hind coxae generally red with their base black. Length, 6 mm. 



The bicoloured scape and black basal segment of the ? , the infuscate 

 central segments and the absence of thyridii in the $, will render this 

 species, which Berthoumieu has considered a variety of C. confector^ at 

 once distinct. 



This is probably our most widely distributed species of the genus. 

 Bridgman found it commonly at Brundall, in Norfolk ; Bignell took it at 

 Bickleigh, in Devon, in August, and at Yelverton, in April ; Luff has 

 captured the male in Alderney ; Mr. W. H. Bennett has given me a female 

 taken in Pett Level, near Hastings ; and I have found it at the roots of 

 grass, during hibernation, in the Bramford Marshes, near Ipswich. It 

 would appear to be attached to humid situations, but it has not yet been 

 bred. 



