Exochus | BRITISH ICHNEUMONS. 43 

Gravenhorst knew only two German males, taken in June and July; 
Thomson says it also occurs in France and Denmark. It has stood in 
the British list since 1856, and Bignell records it from Bickleigh in 
Devon on 18th May. I possess but a single male, which was swept from 
heather by the Rev. F. D. Morice, when we were collecting at Brocken- 
hurst on 29th August, 1go1. 
16. Britannicus, sp. 1. 
A somewhat stout black species with vertical lunulae behind the 
posterior ocelli, upper margin of propleurae throughout, sides and apex 
of scutellum, apex of postscutellum and the frenum narrowly, flavous ; 
abdomen shining, punctate and black with the incisures of the three basal 
segments narrowly, or also nearly whole of second segment, bright brick 
red; tibiae, tarsi and whole of femora clear red, with base of all the 
tibiae flavescent ; basal area discreted from areola; carinae of basal seg- 
ment very strong and extending to apex; wings distinctly infumate with 
tegulae entirely and radius flavescent to base of stigma ; nervellus obsolete. 
Length,7 mm. 9 only. 
Differs from all other Zvoch7 in having the basal nervure continuous 
through the median, combined with the carinae of basal segment extend- 
ing to its apex. 
I have seen two females of this species, which 1s certainly not the alter- 
nate sex of the last described, and both are from Suffolk; the type was 
captured on the flowers of Daucus carota at Tuddenham on 29th August, 
1902; the other was taken about the same time by Mr. W. H. Tuck, M.A., 
at Bungay. With the type occurred a specimen agreeing in every way 
excepting that the basal nervure is distinctly postfurcal below the median ; 
and if they be regarded as cospecific we may, with equal propriety, consider 
E. prosopius a mere form of £. gravipes. 
17. prosopius, Grav. 
Exochus prosopius, Gr. I. E. ii. 349; Steph. Illus. M. 267; Voll. Pinac. pl. viii, 
fig.7, ¢; Thoms. Deut. Ent. Zeit. 1887, p. 209; cf.O. E. xix. 2132 et Buysson, 
Rev. Ent. 1892, p. 258 (wec Holmgr. et Brisch.). E. procerus, Holmgr. Ofv. 1873, 
p. 68, ¢ ?; Brisch. Schr. Nat. Ges. Danz. 1878, p.107, ¢. (?) E. maculatus, 
Brisch. Schr. Ges. Konig. 1871, p. 100, ¢. 
A shining black species, with the legs nearly entirely red. Head with 
with the palpi and dots at vertical orbits pale; g with face, cheeks and 
most of mandibles, 9 always with a facial fascia below the antennae, 
bright flavous. Antennae apically attenuate, with the scape pale beneath. 
Thorax always with an often elongate pale callosity before radix and 
flavous line on apical margin of mesopleurae, ¢ also with large apical 
mesosternal concolorous mark; notauli very distinct and subpunctiform ; 
costulae stout in both sexes. Scutellum with one or two apical flavidous 
marks, sometimes laterally produced to centre ; postscutellum also rarely 
pale-marked. Abdomen immaculate and not very strongly punctate, ? 
with disc of second segment not at all punctate; pubescence distinct. 
Legs flavidous with femora fulvescent ; extreme apices of hind tibiae, the 
tarsal claws and sometimes upper side of their trochanters infuscate ; 
coxae of 9 entirely black, hind ones of g concolorous above; calcaria 
