316 BRITISH ICHNKUMONS. [Mrsochonis 



punctatf, centrally subeU-vatcd and iinpivssL'el below sc robes ; eyes in- 

 ternally slightly emarginate. Antennae slender and fully length of body, 

 basally rufescent or piccous. Thorax stout, convex and finely punctate, 

 usually with prothoracic margin and sternal sutures rufescent; melathorax 

 short with complete upper areae ; petiolar area longer at centre than 

 at sides ; areola not narrow, emitting costulae before its centre. Scutel- 

 lum black, with an acute apical tubercle. Abdomen a little longer than 

 lu'ad and thorax; black with first segment basally, apices of the two fol- 

 lowing narrowly and incisures of remainder, pale; basal segment some- 

 what broad and a little curved, with postpetiole more than double breadth 

 of petiole, and the two following segments slightly broader than long ; 

 terebra and the subcapitate i^ anal styls shorter than first segment. Legs 

 somewhat stout, flavidous stramineous with anterior basally paler; the 

 hind ones not black-marked. Wings hyaline, with stigma piceous and 

 tegulae whitish; areolet large and emitting recurrent nervure before its 

 centre; lower angle of discoidal cell acute, radius apically nearly straight, 

 basal nervure subcontinuous. Length, 6-8 mm. 



(3ur only species with tuberculate scutellum, which is said very rarely to 

 be red. 



North and central luirope: Belgium in July, France; \'ienna and brt'd 

 by Kawall from /'V^^/z/c? /////(//v'a (Kirchner) ; and raised from I\riclista 

 ?ncla!ioaphala {Q\r?L\\6., 1877); but nowhere conunon (Schm.). Certainly 

 a rare species with us : Eaton near Norwich in July (Bridg.); Bickleigh 

 in Devon early in August (Bignell). Musham sent me a female bred 

 from an unknown host at Lincoln on 26th Mav, 1902, and Hinde another 

 bred from Cyinaiophora ridcns at Norwich during 1Q08; the (jnly example 

 I have captured was swept from bushes in the Bentley Woods near Ips- 

 wich on ist July, 1903. Lyle bred four Tuihinid puparia from a larva of 

 Halias prasinana, each of which produced a single example of the present 

 hyperparasite, in the New Forest. 



2. nigripes, Ratz. 



Mesochoriis nigripes, Ratz. Ichn. d. Forst, iii. 119, J\ Thoms. Ann. Soc. Fr. 

 1885, p. 333, cf 5 . M. gibbiiltis, Holmgr. Sv. Ak. Handl. 1854, p. 60, ? ; ///;. cit. 

 1858, p. 124, <f ? . 



Small and black with the anterior legs nearly entirely rufescent and the 

 whole head, including the mouth, black. Head not constricted behind 

 the eyes, and black, with only the mandibles subpiceous centrally; face 

 transverse and punctate, centrally subcarinate and slightly excavate above; 

 mandibular teeth of equal length. Antennae as long as the body or 

 nearly so. Thorax coarctate and stout, little longer than high and finely 

 punctate ; metathorax short with petiolar area reaching metathoracic 

 centre, costulae emitted from centre of areola. Scutellum black and not 

 tuberculate. Abdomen not longer than head and thorax, with the second 

 segment apically rufescent and ventral plica fiavous ; basal segment 

 slightly curved with postpetiole usuall\- sulcate, the two following seg- 

 ments transverse and remainder \'erv slu)rt; terebra not cjuite as long as 

 basal segment and J st\ Is sliort. Legs rufescent with hind and often 

 base of anterior femora, coxae, trochanters and apices of their tibiae 

 black; all the tarsi i)iceous. Wings slightly infumate; stigma and tegulae 

 testaceous; areolet of normal size, emitting recurrent nervure from its 



