256 



BRITISH ICHNEUMONS. 



i8. ischiomelinus, Grav. 



Ichtiettmon ischiomeliiiits, Gr. I. E i. 608, i , cxcll. varr. Phaeogenes ischioniclimis, 

 Wesm. Nouv. Mem. Ac. Brux. 1844, p. 192; Ilolmgr. Sv. Ak. IJandl. 1854, p. 47; 

 Ichn. Suec. iii. 456; Thorns. O. E. x\'. 1653; Berth. Ann. Soc. Fr. 1896, p. 379, 6 ?. 



Head not or hardly narrowed behind the eyes, black ; palpi pale ; frons 

 closely and evenly punctate, shining ; temples and cheeks somewhat 

 broad, latter very distinctly a little produced below the red mandibles ; 

 clypeus shining, sparsely punctate. Antennae of c? slightly attenuate 

 apically and more or less ferrugineous beneath ; of ? stout, filiform, with 

 fifth flagellar joint sub-quadrate, centrally white-banded with base of fla- 

 gellum and most of scape rufescent. Thorax black ; mesonotum punctate, 

 notauli distinct ; metanotum sub-rugosely punctate ; areola not or hardly 

 longer than broad, slightly emarginate apically ; petiolar area discreted 

 and centrally concave. Abdomen black with segments two to four or 

 five red, the following ones apically rufescent ; post-petiole aciculate, in $ 

 gradually narrowed basally ; second segment entirely impressed and some- 

 times black basally, in $, rugulose ; third transverse, punctate and shining; 

 terebra slightly exserted. Legs normal ; anterior testaceous, with coxae 

 and trochanters paler ; hind ones of $ black with apices of coxae and tro- 

 chanters stramineous, base of femora and centre of tibiae rufescent, of $ 

 red, with apex of femora sometimes broadly infuscate ; hind coxae of ? 

 basally fuscous, obliquely crested and sub-strigose beneath, but not dentate. 

 Stigma fuscous ; radix and tegulae stramineous. Length, 6-7 mm. 



The $ may be known by the colour of its legs and the distinctly pro- 

 duced cheeks ; the 5 is similar to that of P. rusticatus^ but the coxal 

 structure is very different. 



Lastingham in Yorks. (Marshall) ; common at Shere (Capron) ; common 

 in Norfolk (Bridgman) ; Bickleigh, in Devon, late in July (Bignell) ; near 

 Guildford early in August (Butler) ; Felden, in Herts. (Piffard) ; Tostock, 

 in Suffolk, early in September (Tuck) ; Mayford, in June (Morice) ; Car- 

 lisle, in September (Tomlin) ; Essex. Doubtless common with us, as it is 

 upon the Continent, but not yet bred. 



19. impiger, Wesm. 



PJiaeogenes impiger, Wesm. Nouv. Mem. Ac. Brux. 1844, p. 19S ; Thoms. O. E. xv. 

 1654 ; Berth. Ann. Soc. Fr. 1896, p. 384, i 9 ; Brisch. Schr. Nat. Ges. Danz. 1878, 

 n. 6, p. 57, ? , 



Head black ; mandibles often piceous or red ; palpi dull testaceous ; 

 frons very closely punctate. Antennae of $ stout, centrally towards the 

 base or the whole basal half red ; of $ entirely black. Thorax sub-ovate ; 

 metanotal areae very finely delineated ; areola hexagonal, apically sinuate ; 

 petiolar area centrally impressed. Abdomen black, with segments two, 

 three, apex of first and most of fourth red ; post-petiole smooth and shining. 

 Legs red ; 9 ^^'ith hind femora and coxae at least partly, and apex of hind 

 tibiae, fuscous ; ^ with coxae, trochanters, hind femora and, except 

 centrally, their tibiae, black ; coxae mutic. Tegulae red or piceous, radix 

 pale ; stigma fuscous. Length, 6 mm. 



The mutic coxae and bicoloured antennae will differentiate the ? ; the 

 $ may be known from that of P. fuscicornis, which it closely resembles in 

 size and coloration, by its pale tegulae and apically sub-rotund clypeus. 



