BRITISH ICHNEUMONS. 267 



p. 59, t? ; Berth. Ann. Soc. Fr. 1896, p. 359, 6 9. D. decolor, Holmgr. Ichn. Suec. 

 iii. 400, i 9 . 



Head somewhat tumidous, black ; clieeks sub-buccate and laterally sub- 

 sinuate ; face protuberant ; $ with palpi pale, and mandibles weak and 

 rufescent ; c^ with mouth and most of the face stramineous. Antennae 

 of ? apically sub-attenuate, tri-coloured ; of $ with flagellum black, more 

 or less ferrugineous with the scape white, beneath. Thorax black ; ^ with 

 pronotum and lines at radix white ; metanotal areae complete ; areola 

 elongate ; petiolar area discreted. Scutellum of $ apically stramineous. 

 Abdomen narrow and black, with segments two to four or five nigrescent 

 or badious ; post-petiole punctate. Legs red ; hind femora, tibiae and 

 tarsi apically infuscate ; $, with anterior, and sometimes base of hind, 

 coxae and trochanters stramineous, and the anterior tarsi infuscate. 

 Stigma sub-testaceous ; radix and tegulae whitish, latter sometimes 

 piceous. Length, 6-8 mm. 



Taken at Hertford, in June, rare (Stephens) ; a doubtful example taken 

 in Acomb Wood, near York, in 1881 (Wilson). Gravenhorst bred it from 

 the pupa of a moth, in June, and Bignell, from Tortrix vin'dana, early in 

 August, \x\ Devon. 



6. conciliator, Wesm. 



Ichneumon opprimator, Gr. Mem. Ac. Sc. Torin, 1820, p. 355 ; I. E. i. 595, excl. ? ; 

 Ste. 111. M. vii. 203, part. Phaeogeues conciliator, Wesm. Mt5m. couron. Ac. Belg. 

 1S59, p. 73 ; Berth. Ann. Soc. Fr. 1S96, p. 386, i . 



Head finely and closely punctate ; clypeus smooth ; epistoma sub- 

 elongate and not protuberant ; palpi white ; mandibles fulvous. Antennae 

 fuscous with scape entirely, and flagellum beneath, fulvous. Thorax 

 black ; areola elongate and narrow ; petiolar area not at all concave. 

 Abdomen black, with apex of first, whole of segments two to four and part 

 of five, red ; petiole long and slender ; post-petiole convex and a little 

 dilated ; second segment sub-quadrate, narrowed and deeply impressed 

 basally ; the following segments transverse. Legs slender, red ; anterior 

 coxae and trochanters paler ; hind coxae, apices of their femora and tibiae, 

 base of latter and the tarsi, black. Stigma fuscous ; tegulae and radix 

 white. Length, 5 mm. 



This is a very little-known species, of which we have nothing but 

 Wesmael's description to rely upon ; I have provisionally included it in 

 the present genus on the strength of Thomson's remark (O. E. xv. 1630), 

 " Troligen iir iifven Wesmaels Ph. conciliator en hanne till nagon Dia- 

 droniid att doma efter det langa epistomat." 



Taken, but not commonly, about London in June (Stephens) ; this 

 record only in part refers to the present species, which, nevertheless, 

 a])pears to have been conceded a place in our fauna solely upon the 

 strength of it, for I know of no other reference to this species in Britain ; 

 and on the Continent Berthoumieu records it only from Piedmont, 



7. collaris, Grav. 



TscJuiiis collaris, Gr. I. E. i. 653, 9 . Diadromus collaris, Wesm. Noiiv. Mem. Ac. 

 Briix. 1844, p. 209; llolmgr. Sv. Ak. Ifandl 1854, p. 48, 9 ; Briscli. Sclir. Nat. Ges. 

 Danz. 1878, n. 6, p. 58 ; Thoms. O. E. xv. 1633 ; Berth. Ann. Soc, Fr. 1896, p. 355, 

 (J 9. 7'liyraeella collaris, Holmgr. Ichn. Suec. iii. 403, i 9. 



