50 BRITISH ICHNEUMONS. 



and two fulvous dots at the apex of the scuteUum. The var. castaneus 

 has the scutellum entirely rufescent. 



The ? may be known from that of the following species by its entirely 

 black thorax and immaculate anus ; the terebra is only slightly exserted ; 

 and the $ by having no pale antennal band, the basal abdominal segments 

 red and the post-petiole not explanate. The mesonotum in both sexes is 

 dull. 



It is widely distributed on the Continent, and has figured in the British 

 catalogues since 1835, when Stephens says it had been taken rarely at 

 Darenth, in June, and also, probably, in Wilts. I know, however, of no 

 more recent captures and the species does not appear to have been bred. 



10. defraudator, Wesm. 



Ichneuuion sediiliis, Gr. I. E. i. 492, excl. i et varr. /. defraudator, Wesm. Nouv. 

 Mem. Ac. Brux. 1844, p. 78 ; Berth Ann. Soc. Fr. 1S95, p. 566, <? 9.^ 



The male is a very slender insect. Head much narrowed behind the eyes, 

 black ; palpi and mandibles ferrugineous ; internal orbits white ; $ also 

 with palpi, mandibles, and cheeks white. Antennae sub-filiform, attenuate, 

 piceous ; of ? white -banded, of $ with scape white beneath. Thorax 

 black ; pronotum, humeral lines and post-scutellum flavidous ; metathorax 

 with three upper areae of which the areola of $ is sub-quadrate, rounded 

 in front and finely shagreened, of $ semi-elliptic, glabrous and nitidulous. 

 Scutellum strongly convex, flavous, basally red or black. Abdomen of $ 

 linear, of $ sub-cylindrical black, segments one to five red, apex immacu- 

 late ; post-petiole finely shagreened, of $ glabrous with a small fovea near 

 the apex ; gastrocaeli transverse and deep, intervening space narrow ; 

 terebra exserted. Legs black : of ? with anterior coxae partly red, hind 

 ones scopuliferous ; anterior, and sometimes hind, femora and all the tibiae 

 red : of $ with coxae and trochanters white, anterior tibiae and femora 

 flavous, hind ones red, apically black ; calcaria white. Wings hyaline, 

 stigma piceous or fulvous ; tegulae flavous or white ; areolet narrowed 

 above. Length, 10 mm. 



This species much resembles the preceding, but the head is narrower, 

 the size smaller, and the colour a little different ; the scutellum of the ? is 

 flavous, red only at the base, and the post-petiole of the $ has the central 

 fovea peculiar to it. 



I know of no British records, though it is included in our catalogues. 

 It has a wide continental range through Hungary, Germany and France. 

 The female hibernates among moss. 



II. apricus, Grav. 



Ichneumon apricus, Gr. Mem. Ac. Sc. Torin, 1820, p. 350 ; I. E. i. 553 ; Ste. 111. 

 M. vii. 197, i ; cf. Wesm. Mem. couron. Ac. Belg. 1859, p. 65 ; Berth. Ann. Soc. Fr. 

 1895, p. 288, S ?. Amblyteles speciosus, Wesm. Nouv. Mem. Ac. Brux. 1844, p. 116, 

 excl. c5 . A. inlersertor, Wesm. Bui. Ac. Brux, 1S54, p. 118, ?. 



1 I cannot find that a description of tliis species was ever published by A. W. Knoch, nor by 

 C. L., nor G., nor Ludwix Kocli ; cert.unly none wrote in 1829. Gravenliorst says, . . . vidi etiam 

 hanc fcminam in inuseo Comitis cie Ho/fniajinsegg, sub nomine Ichn. dcfraudatoris Knochii," quite 

 probably a manuscript one ; Wesniael simply misquotes Gravenhorst ; and Berthoumieu writes, 

 " /. defraudator J Koch. Mus. Hoff. 1829." I can, however, find no reference to a description earlier 

 than that of Gravenhorst ; no such author appears in Mocsary's " Literatura Hymeuopterorum," 



