Euryproctus | BRITISH ICHNEUMONS. 243 

more or less infuscate, with the scape black, above. Thorax dull, with 
notauli obsolete ; mesopleurae not nitidulous ; metanotum rugulose and 
dull, with no distinct areae or with the areola roughly indicated ; petiolar 
area basally incomplate. Scutellum notconvex. Abdomen nitidulous, de- 
planate and black, with segments two to four and apex of ? postpetiole 
bright red; basal segment with elongate petiole, postpetiole gradually 
dilated and thrice breadth of petiole; terebra slightly exserted. Legs 
black with the anterior tarsi, tibiae and apices of femora, hind tibiae 
more or less broadly basally and sometimes hind tarsi red, but the last 
not white-banded. Wings slightly clouded; radius and tegulae, g 
stigma and 9 radix, infuscate; Q stigma testaceous and ¢@ radix 
flavescent ; areolet subirregular and petiolate, externally a little convex ; 
nervellus intercepted above its centre and strongly postfurcal. Length, 
—g mm. 
Superficially not unlike Cafoglyptus fusctcornis; distinct from other 
species of its genus in the dull mesopleurae, obsolete metanotal carinae, 
basally incomplete petiolar area, in the unbanded antennae and tarsi, and 
in the short and dorsally deplanate ¢ ventral valvulae. Pfankuch says 
the black-faced type form has nitidulous speculum and considers £. é7- 
vinctus distinct in its pale-marked face (= var. 9, Thoms. O. E. xix. 
1436) and dull speculum ; but Thomson and I do not follow him. 
It occurs in central Europe and Italy in June and at the end of May on 
umbelliferous flowers, but is rare in Sweden. I have not taken this 
species, and possess but two females in Capron’s collection from Shere in 
Surrey. The Mus. Brit. contains a ¢ taken by Stephens “in June near 
London, and in Devonshire and Salop,” another male ex coll. Linn. Soc. 
Lond. named by Gravenhurst himself, and half-a-dozen other examples 
from Botusfleming, etc. Marshall took the var. d:vzncfus at Nunton in 
Wiltshire, and I have a pair, of which the male is from Capron’s collection 
and the female from the New Forest, found by Miss Chawner. Stephens’ 
representative of JZ. arridens, Gr., is a male of the present species. 
5. geniculosus, Grav. 
Mesoleptus geniculosus, Gr. I. E. ii. 102; cf. i. 686; Ste. TWIe Mi. wai; 2295 a. 
Holmer. Sv. Ak. Handl. 1854, p. 66, ¢ ¢. Ewryproctus geniculatus (sic), Holmer. 
l.c. 1855, p.114,¢ %. E. geniculosus, Brisch. Schr. Phys. Ges. Kénig. 1871, p. 68. 
Sychnoleter geniculosus, Thoms. O. E. xiii. 1430. 
A black and somewhat slender species, with abdomen and legs mainly 
bright red. Head not posteriorly constricted, vertex somewhat broad and 
frons coriaceous; face with griseous pilosity; mandibles, except apically, 
and clypeus flavidous. Antennae very slender, not shorter than body and 
entirely red, with scape alone black above. Thorax immaculate and 
somewhat dull, with distinct notauli; metathorax coarsely but not deeply 
or closely punctate, subnitidulous with strong and complete areae ; areola 
subhexagonal, half as long again as broad, emitting sometimes obsolete 
costulae before its centre; petiolar area strong and distinctly discreted 
laterally. Scutellum black and closely punctate. Abdomen fusiform, 
red and very nitidulous with the petiole and fifth segment to apex alone 
black; basal segment elongate and slightly curved throughout, basally 
petiolate, parallel-sided to the prominent central spiracles and thence not 
strongly explanate to apex, which is hardly double breadth of petiole, 
with discal sulcus but no carinae; hypopygium extending to anus and 
Q2 
