2l8 BRITISH ICHNEUMONS. 



Antennae long and very slender, flavous or ferrugineous beneath towards 

 the base ; of ? semi-annulated with white. Thorax black ; areola sub- 

 pentagonal, costae strong ; costulae entire ; coxal arcae not discreted ; 

 apophyses somewhat short, distinct ; spiracles ellii)tic. Scutellum black ; 

 of ^ convex. Abdomen sub-linear or fusiform, black ; basal segment 

 centrally arcuate, gradually dilated from base to apex, rugosely punctate 

 and narrowly margined ; second and third segments dull, the remainder 

 nitidulous ; gastrocaeli small, transverse, not deeply impressed with the 

 intervening space narrower than centre of post-petiole ; third segment 

 transverse ; fourth ventral segment of S plicate. Legs normal, red ; 

 coxae, trochanters and apices of hind tibiae and tarsi, black. Wings 

 slightly clouded ; stigma piceous, radix and tegulae black ; areolet strongly 

 narrowed, sometimes coalesced, above. Length, 11-13 mm. 



Closely allied to the next species, from which it differs in the characters 

 enumerated under the latter. 



This species is not uncommon on the Continent, and Bridg.-Fitch say 

 it is the commonest of the genus with us. It has, I think, been but once 

 bred — by Marshall, from British Gnophria rubricollis ; and is recorded 

 from Essex. 



4. tristis, Grav. 



Ichneumon tristis, Gr. I. E. i. 137, " (5 " ; Ste. 111. M. vii. 134. Enrylahtis tristis, 

 Wesm. Bui. Ac. Brux. 1853, p. 307 ; lib. cit. 1857, p. 405 ; Ilolmgr. Ichn. Suec. ii. 306 ; 

 Thorns. O. E. xix. 2102 ; Berth. Ann. Soc. Fr. 1896, p. 310, tJ ? . E. coi-viniis, Wesm. 

 Nouv. Mem. Ac. Brux. 1844, p. 152; Bui. Ac. Brux. 1853, p. 305, ? . 



Black, shining ; clypeus convex ; $ with facial orbits, and flagellum 

 beneath, pale ; metathorax sub-bidentate ; scutellum of $ often apically 

 white-dotted ; legs red, with coxae, trochanters, hind tibiae towards their 

 apices, and their tarsi, black. Length, 11-13 mm. 



So closely related to the last-described species as to need no repetition. 

 It is, however, abundantly distinct in being rather broader, in its more 

 convex clypeus, which is sparsely punctate, not depressed laterally nor 

 apically bigranulate \ the antennae of the ? are shorter and centrally im- 

 maculate ; the costae of the areola are sub-obsolete ; the metathoracic 

 spiracles shorter ; the third segment quadrate ; gastrocaeli smaller and the 

 legs stouter ; moreover the fourth ventral segment is not plicate. 



This species is much mixed with E. iorvits ; it has been bred from 

 Trachea piiiiperda, Dianthaecia carpophaga and, in Britain, from D. cap- 

 sincola. Stephens tells us it is somewhat rare, but has been taken about 

 London, in June ; Marquand records it from the distict of Land's End ; 

 Harvvood from Essex ; and Bradley has met with it at Barmouth. Bignell 

 has taken it in the act of piercing the last-named host, at the end of April, 

 bred it therefrom early in July, and has also found the species, at Starcross, 

 early in August ; Davies has found it at St. Ervan, in Cornwall. 



5. rufipes, Stepli. 



Ichneumon rnfipes, Ste. 111. 1\I. vii. 131, i ?. Eurylalms rufipes, Mori. E.M.M. 

 1902, p. 119, (J ?. E, ruficornis. Berth. Rev. Sc. Bourb. 1894, p. 181 ; Ann. Soc. Fr. 

 1S96, p. 309, 6. 



A slender, shining, finely punctate, black species. Head transverse, 

 black, with cribrary organs and clypeal foveae usually rufescent ; clypeus 



