Hemiteles.] BRITISH ICHNEUMONS. I39 



segment elongate, linear, with the post-petiole hardly broader, basally 

 carinate and laterally narrowly bordered throughout, with the spiraeles 

 sometimes prominent ; three basal segments closely, finely and evenly 

 coriaceous and dull, the following nitidulous. Legs red, with coxae, base 

 of the posterior trochanters, hind femora and all the tarsi, piceous. Wings 

 ample and evenly though very slightly clouded ; nervures and the broad 

 stigma piceous, base of the latter and tegulae and radix flavous ; fenestrae 

 broadly separated, nervellus very strongly antefurcal. Length, 3^-5 mm. 



The four basal antennal joints are said to be sometimes red. 



I possess a micropterous specimen belonging certainly to this species, 

 since the outline, scul})lure and abdominal coloration are identical, though 

 the basal third of the antennae, the coxae, trochanters and femora are 

 entirely testaceous, and the thorax obsoletely castaneous-marked. The 

 wings are extremely small and the scutellum proportionately weakly 

 developed. 



I only know the c? of this species, which may conceivably be Graven- 

 horst's N. livibatiis^ but if so, the descriptions of the latter are utterly 

 inadequate, and the present insect differs very widely in sculpture from 

 that which I understand as H. liiiibatus. It bears a superficial resemblance 

 in its convex thorax and sub-ovate abdomen to //. aestivalis, but the 

 antefurcal nervellus and linear petiole are very distinct. The dentate 

 clypeus and exareolated metathorax will distinguish it from any described 

 species. 



The variety mica tor is more slender, with the palpi, whole of second, 

 and part of the third segment, stramineous. It is very possible that both 

 this and the type form should [)rove to be the c? of some cognate Fezo- 

 i/iachits, to which relationship the metathoracic structure points, but till 

 the sexes be associated it is fitter to retain it in Haniteles. 



Gravenhorst captured it on shrubs in August, and says that Hope took, 

 at Netley in Shropshire, a specimen with antennae entirely, the hind coxae 

 and apices of their tibiae, black, which he considered a variety of this 

 species. It has been bred on the Continent, where it is found only in 

 Germany, by Hartig, from Perilitis unicolor (cf. Kirch. Cat. 66). In 

 Britain there are no recent records ; it first occurred to me in the Bentley 

 AV'oods near Ipswich, on loth April, 1895 ; I subsequently found it 

 hibernating in a tuft of grass in St. Helen's Wood at Hastings, in March, 

 at Monk Park W^ofjd in Suffolk and at Gosfield in Essex, in May. Piffard 

 has found it at Felden in Herts., and it is probably not uncommon in 

 Britain. The above-described micropterous specimen was bred by E. R. 

 Bankes in July, 1901, hyperparasitically through a species of Liinneria, 

 from AcroUpia granitella, Tr., at Corfe Castle in Dorsetshire. 



Since writing the above I have identified the brachypterous o with 

 that of Hemiteles ( Theroscopus) pedestris as described by Thomson, and 

 am now in a position to associate the sexes. 



$. Head black with the palpi fulvous and mandibles dark red.apically 

 piceous ; face rugose above ; clypeus and the prominent epistoma smooth ; 

 clypeal foveae with an external rugose area; head smooth with diffuse and 

 somewhat coarse puncturation. Antennae piceous with the five or seven 

 basal joints red ; two basal flagellar joints of ecjual length. Thorax 

 entirely black with coarse puncturation and long pubescence ; petiolar 

 area rugose with no basal costa ; apophyses acuminate; costae wanting, 



