Exenterus | BRITISH ICHNEUMONS. 211 

slender and red; trochanters and anterior coxae flavidous; hind coxae 
and sometimes their tarsi nigrescent. Wings slightly clouded ; areolet 
subsessile, nervellus intercepted below its centre. Length, 6-—7 mm. 
Introduced as British by Bridgman (Trans. Ent. Soc. 1882, p. 160) and 
found by him at Brundall in Norfolk and near Norwich, at the end of 
May and in early June; also at Lakenham in the same county. Holm- 
gren says it occurs at the end of July, and I have taken the male on 15th 
of that month at Louisburgh, Co. Mayo, Ireland, in 1910. ‘This extends 
its western range, since it has hitherto been known only from Sweden. 
12. exstirpatorius, Holmgr. 
Exenterus exstirpatorius, Holmgr. Sv. Ak. Handl. 18&5, p. 238, ¢ (nec Grav.). 
Cteniscus lineiger, Thoms. O. E. ix. 894, ¢. 
A shining, punctulate, black species with the mouth, clypeus, cheeks 
and face pale flavous; clypeus slightly impressed before its rounded apex. 
Antennae filiform, shorter than body, and ferrugineous beneath with the 
scape paler. Thorax gibbous and nitidulous, with margin of mesono- 
tum and preradical lines flavidous; metanotum with five complete areae, 
of which the areola is subrotund. Scutellum deplanate with its apex 
foveate and, like the postscutellum, flavous. Abdomen centrally more or 
less broadly rufescent ; basal segment not elevated, finely rugose and 
gradually a little dilated towards its apex, with carinae extending to the 
centre. Anterior legs pale red; hind ones fulvous with the apices of 
their femora, of their tibiae and tarsi nigrescent; all coxae and trochan- 
ters mainly flavous. ‘Tegulae flavous; nervellus intercepted a little below 
its centre. Length, 7mm. @ unknown. 
This insect is similar to £. mifigosus, but differently marked with 
flavous, etc.; it was renamed by Thomson, as the species described by 
Holmgren was different from the J/onob/asfus of Gravenhorst, which was 
not extracted from this genus till 1906, when Pfankuch examined the 
type. ‘The name may be allowed to stand in both genera. 
I do not know this species, which is only recorded from Sweden. 
Marshall introduced it, I know not upon what grounds, in 1870; and we 
may consider it indigenous, since Bignell tells us (Trans. Devon. Assoc. 
1898) that he captured it on 31st July, near the Plymouth cemetery in 
Devonshire. 
13. limbatellus, Holmgr. 
Exenterus limbatellus, Holmgr. Sv. Ak. Handl. 1855, p. 241, ¢ ?. Cteniscus 
limbatellus, Brisch. Phys. Ges. Konig. 1871, p.99; Schr. Nat. Ges. Danz. 1878, 
p; 106; 2b. cz#. 1891, p. 62, 2. 
A finely punctate, nitidulous, black species with the abdomen mainly 
red. Mouth and clypeus stramineous, the latter subelevated and slightly 
depressed before its rounded apex. Antennae testaceous beneath. 
Mesopleurae very finely punctate with speculum smooth; metathorax 
short, with the upper areae distinct and areola elongate. Abdomen 
mainly red; basal segment black, gradually dilated apically with carinae 
and central sulcus not strong; second segment black-marked ; apical 
segments flavous-margined; venter stramineous. Legs testaceous; an- 
terior coxae and trochanters flavous ; hind coxae basally black. Tegulae 
flavous ; nervellus intercepted below its centre. Length, 5 mm. 
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