lOO BRITISH ICHNEUMONS. 



Strongly punctate, black ; frons very coarsely punctate and deplanate; cly- 

 peus separated, sparsely punctate in $ and truncate, apically reddish with 

 the lateral foveae small ; ? with mandibles, extreme apices of cheeks, dots 

 at vertex and sometimes the internal orbits, red; 6 with vertical lunulae and 

 usually facial orbits distinctly white. Antennae of $ sub-filiform, strongly 

 dilatocompressed beyond the middle, which is white-banded, basal joints 

 and scape beneath often red ; of 6 attenuate, usually reddish beneath. 

 Thorax very dull, black, and strongly punctate ; ? with pronotum some- 

 times reddish ; S with pronotum, and, rarely, a dot beneath radix white ; 

 sternauli distinct ; metanotum more finely punctate, with the areae com- 

 plete ; areola scarcely longer than broad, rounded at base and apex, with 

 angles of latter acute, broader with apex emarginate in S. Scutellum 

 sparsely punctate, shining white ; post-scutellum often pale. Abdomen 

 elongate-oval ; of c? sub-cylindrical ; dull, and somewhat strongly punc- 

 tate ; red, the fourth and fifth segments, and sometimes the first of ^ , black, 

 sixth and seventh, and sometimes fifth of <$ , dorsally white; post-petiole 

 strongly and closely punctate throughout, not very shining, the carinae 

 not strong and the apex rectangular ; second segment faintly transversely 

 impressed in the centre ; gastrocaeli small and oblique ; terebra somewhat 

 exserted, piceous. Legs black ; femora rather stout and in part red, front 

 ones a httle dilated beneath, especially in ? ; tibiae and tarsi red, hind or 

 posterior apically infuscate ; basal joint of front tarsi strongly excised 

 beneath, less so in c? ; coxae somewhat closely punctate, with no scopulae. 

 Wings sub-hyaline, stigma and often nervures fulvous ; tegulae and radix 

 piceous, the former with white dot in front in S ; areolet narrowed above ; 

 in 3 extreme apex of radial nervure distinctly curved. Length, 8-io mm. 



Head sub-triangular, with a small pale vertical dot ; frons not convex, 

 sub-rugosely punctate ; antennae of ? dilated before the apex ; sternauli 

 indicated ; mesonotum and segments two and three coarsely punctate, 

 nearly opaque; legs slender; tibae sub-mutic; male has the external orbits, 

 mouth and clypeus entirely black ; the antennal scape not white beneath ; 

 thorax sometimes entirely black ; the fourth abdominal segment is black, 

 with the basal angles or whole base red, and it is not white-marked. The 

 female differs from B. callicerus, &c., in having the metanotal areae com- 

 plete, and the fifth segment immaculate, and by its rufous markings. 



This species is very like B. lepidus, but has a distinct white vertical dot, 

 the frons is flattish, and the mesonotum more strongly punctate. 



The colour of the legs appears to vary much in the extent of the black 

 markings. 



Stephens, whose " deceptor " is in part referable to this species, says it 

 is not uncommon in the vicinity of London, and is also found in Norfolk, 

 Salop, Scotland, &:c. ; Bridgman quotes this, and also records B. vestigator 

 from Norwich ; Essex ; Bignell captured it at Bickleigh, in Devon, on 

 September 6th ; I have found it about Ipswich ; at Eye, in Suffolk, on 

 Afigelica ; and at Lyndhurst, in Hants., on Scutellaria, in August. Felden, 

 Herts. (Piffard) ; Tostock, in July and September (Tuck) ; Cornwall, in 

 September (Davies) ; both sexes in the New Forest (Miss Chawner) ; 

 Kilmore, Woking, Oxshott, Catford, Weybridge and Blackheath (Beau- 

 mont) ; Oxford (Hamm). It does not appear to have been bred, though 

 it is undoubtedly not uncommon in Britain, and on the Continent. The 

 female is said to hibernate. 



