Ctenopelma | BRITISH ICHNEUMONS. al 

where Gaulle adds Zrichzosoma betuleti as an alternative host. It does not 
appear to have been noticed in Britain since Stephens, in 1835, said of it 
‘‘Rare: taken in the New Forest, about the end of June”’; and it must, 
consequently, be regarded with some suspicion as indigenous, were it not 
that I have been enabled to synonymise Desvignes’ 7. “Scoticus, which he 
says (/.c.) was taken in Scotland, by an examination of the type, a fine 
insect of the maximum size, in the British Museum. 
2. xanthostigma, Holmgr. 
Ctenopelma xanthostigma, Holmgr. Sv. Handl. 1855, p. 118, 3 ?. 
Somewhat shining, punctulate, pubescent and black with the mouth, 
clypeus and face entirely flavous ; clypeus transversely convex, with the 
apical margin depressed and truncate. Antennae nearly entirely tes- 
taceous. Thorax black with tegulae, in ¢ also a line before them, whole 
of prothorax, mesosternum and metapleural marks, flavous ; areola api- 
cally incomplete. Scutellum flavous. Abdomen pale red, with the basal 
segment and in @ anus black; central segments not laterally inflexed. 
Legs stramineous, with the hind tibiae and tarsi testaceous ; hind femora 
and in 9 all the coxae and trochanters black. Areolet subpetiolate ; 
nervellus intercepted a little below its centre. Length, 7—8 mm. 
The only known record of this species is Gyllenhal’s capture of both 
sexes in West Gothland in southern Sweden, as instanced by Holmgren. 
But I possess two females so named, doubtless correctly, by Dr. Capron, 
which were captured by him, apparently about Shere in Surrey, some 
thirty years ago. 
3. nigra, Holmgr. 
Ctenopelma nigra, Holmgr. Sv. Ak. Handl. 1855, p.120; Brisch. Phys. Ges. 
Konig. 1871, p. 69; Schr. Nat. Ges. Danz. 1878, p. 71, ¢. 
Somewhat shining, punctate, black. Head hardly constricted pos- 
teriorly with mouth, clypeus, face except partly in g, and the @ vertical 
orbits, flavous. Antennae as long as body; of 9 with flagellum dull 
ferrugineous, and scape flavidous, beneath. ‘Thorax stout, with distinct 
notauli; pleurae glabrous; metathorax of @ subrugulose, of @ nearly 
smooth ; metanotal areae distinct, with areola apically entire and laterally 
parallel. Abdomen not broad, longer than head and thorax, shining and 
black ; of 2 with the thyridii, and sides of third segment broadly, bright 
ferrugineous ; basal segment stout, laterally impressed beyond its central 
spiracles, and in ¢ strongly sulcate discally. Legs pale red; anterior 
coxae and trochanters flavous; hind coxae, tarsi and apices of their 
tibiae, black. Wings with tegulae flavous; radial nervure slightly reflexed 
apically; nervellus intercepted distinctly above its centre. Length, 
10o—II mm. 
Boheman took a single g in Lapland on zoth June and Brischke found 
the same sex at Xonigsberg. The female has not before been described, 
but I have no hesitation in here bringing forward, as such, a specimen I 
swept from birch bushes in the Bentley W oods near Ipswich on 29th 
May, 1902. This species and C, /u/ea, of which it may well be a colour 
variety on account of its glabrous frons, are the only ones known to me 
with supramedially intercepted nervellus, 
