Spi/ocryptus.] BRITISH ICHNEUMONS. 281 



proiiotiim, dots beneath the radix and two marks on the nietathorax, 

 white ; apophyses weaker than those of the 9 • Scutellum a[)ically, and 

 sometimes the post-scutellum, white. Abdomen narrower than the tliorax, 

 parallel-sided ; red, with the seventh segment, and the first except its apex 

 black, and the anus not white-marked ; basal segment narrower and more 

 closely punctate than that of ? . Legs black ; anterior femora internally, 

 and the hind ones except at the ai)ex, red ; anterior tibiae internally stra- 

 mineous, the hind ones internally towards the base, ferrugineous ; hind 

 tarsi centrally white and the intermediate pale. Wrings not clouded, radix 

 and tegulae dull stramineous ; areolet quadrate. Length, 9 mm. 



I describe the sexes separately, since very great doubt appears to exist 

 as to whether Taschenberg were justified in uniting opisoleucus with adustus ; 

 more especially is this the case, as Thomson points out, on account of the 

 immaculate anus and so-described bidentate clypeus of the (^ , the latter 

 being a feature which is found in no true Crypiides ; this affinity is, how- 

 ever, unconditionally accepted by Schmiedeknecht. 



The variety albolineatus differs in having the thorax and post-scutellum 

 immaculate, the sixth segment sometimes infuscate, and the hind femora 

 entirely black. 



Marshall introduced this species as British in his 1870 Catalogue, and 

 its distribution through northern and central Europe lends probability to 

 its occurrence, but I have heard of no captures, and seen no specimens of 

 it. In Germany it has been bred from Lophynis pallidus, L. pini and 

 perhaps also from L. siiiii/is. 



7. nubeculatus, Grav. 



Cryptus mihectdatus, Gr. I. E. ii. 61 1, e.xcl. var. 2, ?; Ste. III. M. vii. 293, 6 9; 

 Ratz Ichn. d. Forst. i. 143 ; Tschek, Verh. z.-b. Ges. 1870, p. 408, 9 ; Tasch. Zeits. 

 Ges. Nat. 1865, p. 96, 6. C. grossns, Gr. I. E. ii. 614, 9- Sj<ilocry/>tus grossits, 

 Thorns. O. E. v. 508, 9 et xxi. 2369, i 9 • 



Head nitidulous with grey pubescence ; face of S not prominent ; 

 internal orbits very narrowly pale ; clypeus indistinctly discreted, sub- 

 deplanate, apically depressed and sub-rotund ; cheeks elongate ; frons 

 deplanate with an obsolete central carina and determinate scrobes. An- 

 tennae of S immaculate and setaceous ; of $ filiform with the joints 

 short, the central ones white above and the scape sometimes rufescent 

 beneath. Thorax shining with grey pubescence, immaculate ; mesonotum 

 finely and not closely punctate ; metathorax coarsely and rugosely punc- 

 tate, with coxal area distinct, nearly complete, and both transverse costae 

 distinct ; apophyses acute, weaker in ^ ; spiracles large and oval. Scu- 

 tellum black. Abdomen densely and finely punctate ; of $ hardly 

 narrower than thorax and oval, of ? as broad as thorax and short-ovate, 

 becoming incrassate towards anus ; red, with the petiole and four apical 

 segments black, of which the sixth and seventh have whitish margins ; 

 fourth of (J sometimes entirely, generally partly, red ; post-petiole glabrous 

 and nitidulous, laterally punctate, of c? quadrate and isolatedly punctured, 

 of 9 somewhat transverse, sub-convex, apically curved and explanute 

 laterally ; terebra half the length of the abdomen. Legs black ; coxae and 

 trochanters sometimes castaneous-marked ; front femora beneath, and 

 tibiae mainly, testaceous ; intermediate tibiae, especially in $ , internally 



