Siidopisthtis] BRITISH ICHNEUMONS. 337 



2. laticeps, Thonis. 



Stictopisflins hiticcps. Thorns. Ann. Soc. Ent. France, 1S85, p. 344, ,i ? . 



A black species with red markings, the head broader tliau thorax and 

 constricted behind the eyes. Length, 4-5 mm. 



This shortly diagnosed species is known from the last by the form of 

 the head, the convex face, the short and setaceous and stouter antennae, 

 the discally punctate mesonotum which is deplanate before the scutellum, 

 and by the stouter legs. 



" Patria : Suecia et Anglia " (Thoms.) ; bred by Fletcher from Gclcchia 

 notaklla found in Wicken Fen, Cambridgeshire, during June, iH(S5 (Trans. 

 Ent. Soc. 1886, p. 353). I have taken it at Reydon and on fennel llowers 

 at Alderton in Suffolk ; Ranworth Broad in Norfolk ; Capron had one 

 from Shere in Surrey; and Peachell has sent it me from Weymouth, bred 

 through ApanUUs species from Abraxas grossulan'ala in tlie middle of 

 June. 



3. formosus, Bridg. 



Mcsoc/tonts foniiosiis, Bridg. Trans. Ent. Soc. 1882, p. 154; Tlioms. Ann. Soc. 

 Ent. Fr. 1885, p. 343, <? ? . StictopistJius fonuosiis, Schm. O^jusc. Ichn. p. 2008, 



Black with the abdomen centrally and legs flavous, ba.sal nervure nearly 

 continuous through the median. Head constricted posteriorly, flavous 

 with ocellar region and mandibular apices nigrescent and 9 f'^^<-^ apically 

 infuscate ; face quadrate, clypeus apically rounded, not basally discreted 

 and mandibular teeth of subequal length. Antennae longer than body 

 with first flagellar joint half as long again as second and about six times 

 longer than broad; of ^ testaceous, with scape flavous beneath. Thorax 

 smooth and infuscate ; of 9 nearly entirely black ; areola elongate with 

 its sides centrally explanate. Abdomen slender and nigrescent with a 

 flavidous loniritudinal mark from centre of second to that of third se<ir- 

 ment, and the anus laterally piceous ; basal segment slightly longer than 

 hind trochanters, with postpetiole somewhat irregularly aciculate; second 

 a little longer than broad, and the third quadrate and apically strongly 

 constricted, with anus thence distinctly compressed ; anal styls of ^ 

 stramineous; terebra about as long as basal segment. Legs pale flavous, 

 with only hind tibiae apically piceous. Wings hyaline with stigma and 

 nervurcs difll white, tegulae stramineous ; ari:t)let emitting recurrent 

 nervure before its centre ; basal nervure continuous ; nrrvellus not inter- 

 cepted. Length, 3-4 mm. 



Thomson placed this sj)ecies in Mi sm /urns proper, doubtless on account 

 of its continuous basal nervure and elongate terebra; but .Schmiedeknecht 

 was surprised at his doing .so, on account of the postpetiolar sculpture, 

 which he considers typically that of the present genus. The former 

 thought it very similar to J/, anoma/ns tht)Ugh with the second .segment 

 triangularly flavescent as in J/, facialis, the cheeks and petiolar area a 

 little shorter, the head strongly constricted and tlu' hind calcaria a little 

 shorter. 



It does not appear to be rare in northern and central lOurope, though 

 not yet much known. Both sexes were described from examples bred by 



