234 BRITISH ICHNEUMONS. 



angles quadrate ; gastrocaeli somewhat superficial, transverse ; anus of ? 

 densely ciliate, its hypopygium not concealing the shortly exserted terebra. 

 Legs normal, red; coxae, trochanters, hind tarsi and apices of their tibiae, 

 black ; anterior coxae of ^ white ; tarsi slender, of $ spinulose. Stigma 

 red or fuscous ; tcgulae of c^ white ; areolct pentagonal, narrowed above ; 

 nervellus vertical. Length, 5-8 mm. 



This pretty little species is probably not common in Britain. I possess 

 an example found in the London district ; Bridgman took it, at Earlham, 

 near Norwich, and is said to have bred it from Eiipitliecia viinutata. On 

 the Continent, it has emerged from E. absynthiaia, and is frequent on 

 bushes, in France, Belgium, Sweden and Germany. 



18. dimidiatus, Grav. 



Hoplismemis dimidiatus, Gr. I. E. ii. 421, 9. Platylahiis diniidiatiis, Wesm. Nouv. 

 Mem. Ac. Brux. 1S44, p. 160; Bui. Ac. Brux. 1848, p. 311 ; Ilolmgr. Ichn. Suec. ii. 

 332 ; Thorns. Ann. Soc. Fr. 188S, p. 126 ; Berth. ///'. cit. 1896, p. 329 ; Thorns. O. E. 

 xix. 2113, d ?. rhygadenon discedeiis, Gr. I. E. ii. 673, i. 



Llead triangular anteriorly, strongly narrowed behind the eyes, black ; 

 vertex short ; clypeus centrally flat, laterally rounded ; frons coriaceous, 

 scrobes small and lunate. Antennae slender, black, centrally white-banded 

 in both sexes ; of $ usually red towards the base. Thorax red ; meso- 

 notum, especially of $ entirely or partly black, the latter more often has 

 the metathorax also black ; notauli distinct, short ; areola transverse ; 

 costulae entire ; apophyses obsolete or wanting ; spiracles small, sub- 

 circular. Scutellum black, very often red or red-margined, its lateral 

 carinae entire. Abdomen somewhat short, black, with the two basal seg- 

 ments red and the apical three broadly white-margined ; petiole deplanate ; 

 post-petiole bicarinate, glabrous ; gastrocaeli superficial, narrow, obliquely 

 longitudinal ; hypopygium not hiding the shortly exserted terebra. Legs 

 somewhat slender, red ; hind tarsi and apices of their tibiae, occasionally 

 the coxae and trochanters, black ; tarsi slender, of ? spinulose. Stigma 

 dark ; tegulae nigrescent ; areolet pentagonal, narrowed or coalesced 

 above ; nervellus vertical. Length, 6-8 mm. 



The coloration of this species is somewhat variable, especially in regard 

 to the extent of the thoracic and, in $ , antennal red ; the latter occasionally 

 has the legs black, with the posterior coxae in part red ; the $ rarely has 

 the two basal segments black with the second red-marked. 



This handsome little insect is by no means uncommon, in August and 

 September, on shrubs, in Britain, and is somewhat widely distributed on 

 the Continent, where the female is known to hibernate among moss, etc. 

 It has been bred from Depressaria hcracleana and D. depressella ; and in 

 England, from Melanippe fluctuata, and in the middle of INLay from the 

 equally common AT. moiitanata. It is recorded from Land's End, South 

 Devon, Essex, Mousehold Heath near Norwich, Hastings, and Kenmare 

 in S.W. Ireland early in July. I have examples taken at Leiden in Herts., 

 Lewisham in the middle of June, and in the New Forest ; Beaumont has 

 found it at Catford, Chobham, Malvern, Colwyn and Kilmore ; Luff, in 

 Guernsey ; and Chitty, at Parley, Surrey, in May. 



