Cubocephalus.'] BRITISH ICHNEUMONS. 21 



flagellum centrally pale, with the legs stouter, and the male the thoracic 

 spiracles nearly oval and the second segment often hasally bicarinate. 



The distribution of this species is said to extend throughout the nortliern 

 and central districts of Europe. Ratzeburg bred the females in Germany, 

 with Tryphon (Meso/eius) fiiger, Grav., from A I/an/ us cingu/a/iis, and tlie 

 males from the bark of trees. It would appear to be of rare occurrence 

 in Britain. I have seen a female taken by Bignell, at Horrabridge, in 

 Devonshire, in mid-September, and A. J. Chitty has given me a male, 

 which he captured, in the New Forest, in June, 1893. 



2. nigriventris, Thonis. 



Phygadenon fa/iginosus, Gr. I. E. ii. 645, iet\s.x. 9 ; Tasch. Zeits. Ges. Nat. 1S65, 

 p. 22, (i 9 . Slenocryptus nigriventris. Thorns. O. E. vi. 604, S ? • 



Elongate, black, sub-glabrous and somewhat shining. Head large, 

 nitidulous and not narrower than the thorax, with the vertex broad and not 

 declived, temples tumidulous ; frons deplanate, with usually a considerable 

 orbital dot, and the scrobes not large ; epistoma not prominent, clypeus 

 transverse, mandibles twice longer than broad ; ^ with palpi testaceous, 

 face and mouth, with the buccate cheeks, white. Antennae of 9 filiform, 

 black, with no central pale band, less than twice longer than the head ; of 

 $ not reaching beyond the thorax, somewhat attenuate, with the basal 

 joints rufescent, and the scape usually white, beneath. Thorax elongate, 

 of S with two white dots near the radix ; pronotum short, with the epomiae 

 nearly wanting ; mesonotum finely punctulate ; mesosternum shining and 

 sparsely punctate, with the epicnemia nearly entire, and the lateral sulci 

 well-defined, though not reaching beyond the centre ; metathorax not 

 transverse, areae of the S complete, of the 9 '^^'ith petiolar area distinct, 

 areola outlined and the lateral costae indistinct ; spiracles small and 

 circular. Scutellum black. Abdomen oblong, black and nearly glabrous ; 

 basal segment extending beyond hind coxae, gradually dilated throughout 

 and slightly curved, of ? with no dorsal carinae ; post petiole densely and 

 very finely alutaceous or aciculate, and dull ; the second hardly transverse, 

 dull and sub-punctate, with the remainder nitidulous ; terebra reflexed 

 and half the length of the abdomen. Legs of the ? stout and entirely 

 red ; S with the anterior coxae basally and the hind ones entirely, apices 

 of the hind femora and of their tibiae, black ; hind tarsi infuscate and 

 centrally rufescent. Wings hardly clouded, with the stigma somewhat 

 large ; tegulae black, of 6 white ; radix flavescent, areolet pentagonal ; 

 nervellus intercepted far below its centre. Length, 6-8 mm. 



Gravenhorst's female is quite distinct from that of the present species, 

 which is the P/iygadeuon ca/iginosus of ALarshall's Catalogue, in which the 

 typical i is misprinted " 9 •" 



Bridgman has recorded this species, whose range extends throughout 

 north and central Europe, from Sparham, in Norfolk ; and Bignell from 

 Stonehouse, in Devon, in August. In July, 1904, Donisthorpe gave me a 

 female of this species, which he had " dug at Market Bosworth, Leicester- 

 shire, from a burrow of Te/ropiuin cas/aneiitn, in a spruce tree " ; there 

 was, however, no direct evidence of this species' parasitism upon the 

 longicorn coleopteron (cf. E.M.M. 1906, p. 41). Dr. Capron has also 



