HemUeles.'\ BRITISH ICHNEUMONS. 1 33 



becoming confluent on the disc before the centre ; slignux black, basally 

 whitish ; radix white ; areolet regularly pentagonal, with the outer nervure 

 wanting in (?, and often incomplete in ? ; nervellus evidently antefurcal. 

 Length, 2|-6 mm. 



At once known by its buccate cheeks, apically margined clypeus and 

 broadly red-mottled head and thorax ; it differs from H. bicolorinits in its 

 regular areolet, which is externally incomplete, the acute epipleurae of the 

 second and third segments and the apically explanate face of, at least, the 

 male. In the $ there is constantly a traiisjjarent area immediately beyond 

 the stigma, which is wanting in that of //. bicolotiniis. 



I have noticed that the $ of this species walks, while searching, some- 

 what jerkily and elevates her abdomen at every few strides in such a way 

 as to appear to push the wings upwards. This habit is common to the 

 majority of the Cryptinae, I believe, as well to some Diptera, e.^''-, the 

 fasciated winged Tachisiae^ which probably mimic, for protective pur- 

 poses, the present species. Ratzeburg bred his allied species (perhaps 

 only a variety of the present one), H. conip/etus, from Ptilinns pedinicornis 

 in poplar-wood. I once took the female, at night in my study, in December, 

 apparently attracted to artificial light. In April, 1905, a single female 

 emerged through a roughly circular hole, exactly i mm. in diameter, 

 pierced low down on the side of a cocoon of Trichiosotna kicorum (tibialis^ 

 ISIorice) found at Debenham in Suffolk and filled with larvae of Spilocryptus 

 cimbicis, from which it had undoubtedly been raised hyperparasitically. 



One of the most abundant species of the whole of the Ichneumonidae 

 throughout Europe and occurring everywhere the year round, especially 

 upon thick Conifcrae in the spring. Panzer first found it on thistles among 

 Aphides ; Taschenberg says it is bred from larvae of Platypteryx falciila 

 and also of Derf/ies/es, Anthrenus and various Tineae ; and Thomson 

 records it from the pretty beetle, Cioniis scrophiihiriae. Bridgman says it 

 is common in Norfolk and bred from Trichiosoma betuleti, Coleophora 

 fuscedinella and Eupoecilia amhiguana. A common parasite in Devon- 

 shire and there bred from the cocoon of Trichiosoma luconiin, from several 

 moths' cocoons and hyperparasitically from Gonepteryx rhamni through 

 Limiieria vuli^aris (Bignell). Yorkshire (Marshall) ; Oxshott, Hunting- 

 field and Offchurch Bury (Chitty) ; a hy[)erparasite upon Hybeniia pro- 

 geinmaria (Buckler). Hyperparasitic through a Microgaster on Pieris 

 brassicae, and bred from Coleophora nii;ricella (Giraud) ; bred from Coleo- 

 phora iherinella, Staint., C. anatipennella, Hiib., :[.x\^ Gelechia a/bipa/pel/a, 

 H S. (Marshall) ; abundant at Glanvilles Wootton (Dale). It has been 

 bred from Orgyia pudibu/ida, Lasiocampa pini (sometimes through Micro- 

 gaster ordinarius, Ratz. — cf. Ratz el Marsh. Bracon. d'Europ. i. 412), 

 Dicranura furcu/a, Tortrix viridatia, Psyche Calvella, Fiiinea intermedie//a, 

 F. affinis, Tahieporia pscudobombyceila, Cerostoma coslella, Hyponomeuta 

 padel/a, If. t/ia/ine/hi, H. evonymella, Gelechia vulge/hi, Coleophora curruci- 

 pennella, Lithocolletis sp., Lophyrus pini or L. similis, Fenusa pitmila, 

 Trichiosoma betitleli (through Cryplus cimbicis), Lophyrus pini (through 

 Microcryptus basizonius ), Phycis belulella (through Macroceii/rus thoracicus), 

 Cynips Kollari galls, Andriciis lermiita/is galls, Chrysopa sp., Cecidomyia 

 rosaria, Ifedobia imperialis and other xyluphagous oak-feeding Coleoptera 

 (Bridg.-Fitch, etc.). Rev. C. I). Ash has bred it from Coleophora vimi- 

 netella ; Donisthorpe has found it in the burrows of Anobiitm dendcolle, 



