
20 BRITISH ICHNEUMONS. [ Chorinaeus 
6, talpa; Hal. 
Exochus Talpa, Hal. Ann. Nat. Hist. 1839, p. 113, ¢ ?. Chorinaeus talpa, 
Thoms. Deut. Ent. Zeit. 1887, p. 202, ¢ ¢. C.asper, var., Bridg. Trans. Ent. 
Soc. s188i\, p: l6o, se 
A small, black species, with the antennae of 9 not longer than the 
thorax and of ¢ extending to apex of the fourth abdominal segment. 
Scutellum immarginate. Abdomen black and basally scabriculous. Legs 
black with only the front tibiae and tarsi ferrugineous, and the posterior 
tibiae basally white. Wings with no areolet; the lower basal nervure 
postfurcal; nervures of hind wings apically wanting; nervellus geniculate 
but not intercepted. Length, 3—34 mm. 
At once known by its small size, immarginate scutellum, the mainly 
black legs and entire absence of all carinae on the second segment. 
Ireland in April and May (Haliday); England (F. Walker); bred by 
Elisha from Gracillaria semtfascia (Fitch, Entom. 1883, p. 67). As far as 
one can judge by the description of the former, C. asfer, Grav., differs 
from this insect only in the pedal coloration and no doubt can be enter- 
tained that Bridgman’s “var. Legs piceous ” of it is referable to the present 
species; both sexes of this form were taken during the same months as 
Haliday’s examples, but in 1880 near Norwich; and subsequently (Trans. 
Norf. Soc. 1893, p. 628) Bridgman tells us that the present species is 
common in Norfolk, while making no mention of C. asper. Elsewhere it 
is only known in southern Sweden; and has nowhere been more recently 
bred. Stenton took it on 11th May, 1911, at Wimbledon; Tuck on 
21st April, 1900, at Tostock in Suffolk; Capron at Shere and Piffard at 
Felden, in Herts. 
7. asper, Grav. 
Exochus asper, Gr. I. E. i., Suppl. 694; Steph. Illus. M. vii. 267. 
Head black with the mouth ferrugineous. Antennae a little longer 
than half the body, rufescent towards the base beneath. Thorax black. 
Abdomen as long and as broad as head and thorax; first segment a little 
constricted basally, longer than broad, scabriculous and longitudinally 
bicarinate; the following becoming gradually shorter and smoother. Legs 
pale red, with the hind coxae alone basally black above. Wings 
hyaline; stigma and costa piceous, radix and tegulae flavous. Length, 
34 mm. 
Marshall, no doubt correctly, placed this species in the present genus 
in his Catalogue, but we know nothing of it beyond the original descrip- 
tion and it is unknown on the Continent. I have seen nothing like it, but 
am inclined to consider it distinct from C. /a/pa on account of the red legs, 
which appear constant in colouration. 
One individual of uncertain sex was taken by Hope around Netley and 
constitutes the type, (which is very probably in the Hope Department of 
the Oxford Museum), as recorded by Gravenhorst; and Stephens informs 
Fe unreliably, that it has also been found near London in the month of 
une. 
