68 BRITISH ICHNEUMONS. [ Stenomacrus 


the three following segments, stramineous; three basal segments obliquely 
impressed later ally, and the remainder glabrous. Legs fulvous with the 
anterior coxae and trochanters, and me hind tibiae basally, whitish. 
Wings ample and hyaline; radius and stigma dull stramineous, radix and 
tegulae whitish ; areolet irregularly pentagonal and obliquely transverse. 
Length, 32 mm. 
This species is given as British by Marshall, doubtless on the strength 
of Desvignes’ record (Cat. 91); but the five specimens placed by Des- 
vignes under this name in his collection are a g of Orthocentrus fulvtpes, a 
couple of Q Svenomacrus laricis and two other ? of the same genus with 
no areolet! Gravenhorst knew but a single @, from Warmbrunn in 
Silesia, and no one has since recognised me species, which Thomson 
(O. E. 2430) thought possibly a form of O. a/fenuatus, Holmgr. Our claim 
to it as British is entirely imaginary, though Haliday’ s MS. records it as 
taken by himself commonly in Ireland. 
4. curvicaudatus, Brisch. 
Orthocentrus curvicaudatus, Brisch. Schr. Ges. Konig. 1871, p. 103; Schr. 
Nat. Ges. Danz. 1878, p.111, 2. Stenomacrus brevicaudatus (sic), Thoms. O. E. 
ody I CES Cec 
A black species, with the legs partly pale. Head of 9 not posteriorly 
constricted ; ¢ face centrally broadly pale. Flagellum filiform with the 
basal joint short, triangular and in @ a little shorter than the quadrate 
second, or in ¢ slightly longer. Abdomen glabrous, nitidulous and not 
strongly compressed, with the second segment smooth; venter basally 
pale; the slightly curved terebra a little shorter than the broad basal seg- 
ment and extending a little beyond the subcompressed anus. Legs some- 
what stout ; the femora black with their apices and trochanters pale; @ 
with tarsi and tibiae infuscate. Wings with the radial nervure apically 
nearly straight and basally emitted from basal third of stigma; anal 
nervure emitted from centre of brachial cell; areolet irregular, emitting 
recurrent nervure from its apical angle. Length, 3—3$ mm. 
At once known by the basal position of the radial nervure and its dark 
legs ; the areolet is said to be sometimes obsolete or distinctly wanting, but 
it is clear in my 
Brischke described it from Prussia, and it is also found in Sweden. I 
find I possess three males, taken at Bickleigh in Devon early in June, and 
by sweeping march herbage at Brandon and Tuddenham Fen, in Suffolk, 
at the end of June and of September. 
5. concinnus, Holmer. 
Orthocentrus concinnus, Holmgr. Sv. Ak. Handl. 1855, p. 336, excl. ¢; Brisch. 
Schr. Ges. Koénig. 1871, p. 102, excl. ¢; Schr. Nat. Ges. Danz. 1878, p. 109, ?. 
Stenomacrus concinnus, Thoms. O. E. xxii. 2441, ¢ 9. 
A small, shining, black species. Head of ? with the upper margin of 
face pale to the eyes, of ¢ with the face and mouth entirely pale but the 
cheeks black. Antennae black, becoming pale beneath towards the base ; 
flagellum filiform and postannellus cylindrical. Mesonotum glabrous; ¢ 
pronotum black. Abdomen apically compressed and basally rugose; 
terebra not exserted beyond anus. Legs testaceous and somewhat stout 
