288 BRITISH ICHNEUMONS. [Hopiocryptus. 



the post-petiole dilated, with dentately prominent spiracles ; the colour of 

 the $ face, legs and abdomen is the same, but the structure of the basal 

 segment and longer metathoracic spiracles will distinguish it. 



The $ var. fitji^iiivi/s differs in having no hind tibial [)ale band, the 

 anterior femora basally infuscate, and the second, or second and third 

 segments, black-marked ; perhaps Tschek's var., with the first segment 

 entirely, the second at base and apex, the third apically, black, is its 

 male. 



Kriechbaumer (Ent. Nachr. 1891, p. 225) considers Thomson's species 

 to differ from that of Oravenhorst in the colour of the femora, tarsi and in 

 size ; he himself, however, describes a variety with a semi-ovate spot on 

 the seventh segment, and its apical membrane white, the post-petiole 

 entirely and base of the fourth segment, red. 



H. confector is said to occur very rarely throughout northern and central 

 Europe, but the only British record I can find is Stephens' from near 

 London, in June. Abroad it has several times been bred from a bee, 

 Ostnia tridentata, which nidificates in bramble stems, and from the 

 Evaniid, Foenus asseciator, which was probably parasitic upon the 

 Aculeate. Tschek's original male (loc. cit.) was bred from this host's nests 

 in stems of Verbascum. 



3. fugitivus, Grav. 



Cry plus fugitivtis, Gr. I. E ii. 515, excl. var. 3, ?; Ste. III. M. vii. 284; Tasch. 

 Zeits. Ges. Nat. 1865, p. loi, i ?. Hopiocryptus fugitivus. Thorns. O. E. xxi. 2372 

 (nee V. 512) ; Brisch. Schr. Nat. Ges. Danz. 1879, p. 336. H. confector. Thorns. 

 lib. cit. V. 511. Var Cryptus gracilis, Gr. I. E. ii. 520 et var. I ; Holmgr. Sv. Ak. 

 Handl. 1854, p. 53, S . 



Head of $ with internal orbits, cheeks, palpi, and the clypeus, which is 

 in both sexes apically prominent, white. Antennae slender, of $ with 

 central flagellar joints white above. Thorax with pronotum and a callosity 

 beneath radix, white ; metathorax short, somewhat coarsely rugose, with 

 transverse costae not very distinct, the basal slightly and apical distinctly 

 curved ; apophyses very small ; spiracles oval. Scutellum rarely entirely, 

 usually more or less at apex, and generally the post-scutellum or two dots 

 upon it, white. Abdomen of $ sub-linear and narrower than thorax, of 

 $ oblong-ovate and as broad as thorax ; black, with segments two to four 

 entirely and apex, or sometimes in $ whole, of first red ; seventh dorsally 

 white in l)oth sexes ; basal segment of c? sub-linear, impunctate but 

 pubescent, with apical angle obtuse, of $ elongate and somewhat curved 

 laterally ; post-petiole shining and carinate, moderately dilated towards 

 apex, of $ elongate, of ? quadrate ; terebra about half length of abdomen. 

 Legs slender and elongate ; red, with coxae, trochanters, hind tibiae 

 except basally in 9 » and their tarsi, black ; 9 with anterior femora more 

 or less broadly, and hind ones at apex, nigrescent ; S with anterior tarsi 

 pale, coxae and trochanters beneath, and central joints of hind tibiae, 

 white. Wings somewhat clouded ; radix and- tegulae of S white, of ? 

 stramineous or black ; second recurrent nervure emitted from nearly in 

 the centre of areolet ; radial nervure apically inflexed. Length, 12 mm. 



The legs of the ? are sometimes mainly black, with the anterior in- 

 ternally testaceous. The nervellus is often intercepted below the centre, 

 according to Kriechbaumer (Ent. Nachr. 1891, p. 225). 



