186 BRITISH ICHNEUMONS. lAngiiia 



12. crassa, Bridg. 



Linmcria (Anf^itia) crassa, Bridj;. Trans. Ent. Soc. 1889, p. 425, <? ? . 



A black species with the abdomen centrally red-marked ; the scape and 

 legs pale, hind coxae black; terebra shorter than basal segment, and arco- 

 let wanting. Length, 3 mm. 



This species is extremely closely allied to A. piisio, and shares with it 

 the peculiarly short and stout basal segment. I should have been tem[)ted 

 to synonunise them, presuming on Bridgnian's ignorance in nature of the 

 former species, were it not that a careful comparison shows the present 

 to differ in having : — the flagellum apically slightly attenuate, the head 

 transverse though scarcely constricted posteriorly, the face quadrate, the 

 metanotal costulae subcomplete, the third abdominal segment transverse 

 with terebra two-thirds the length of the basal one; the scape of the 9 is 

 basally flavidous beneath and of J" entirely flavous, as are the anterior 

 coxae and hind trochanters of both sexes; the hind femora are flavescent- 

 red, with their tibiae paler, the stigma is pale and the length circa 3 mm.; 

 the ^ has a lateral abdominal rufescent mark, extending from the apex of 

 second almost to apex of third segment, and the 9 has the third segment 

 laterally, the second except discally, and the fourth slightly, rufescent. 



A single pair was raised by W. H. B. Fletcher from the larvae of Buccu- 

 latrix cidarieUa at Abbots Wood near Polegate in Sussex. 



13. sordipes, Thorns. 

 Angitia sordipes, Thorns. Opusc. Ent, xi. 1887, ? . 



Head with the vertex hardly constricted, face parallel-sided, cheeks 

 subbuccate, peristomium and mandibles small. Antennae longer than 

 half-body, with the filiform flagellum slender and scape black. Thorax 

 not elongate, with areola short and laterally continuous with petiolar 

 area; costulae wanting. Abdomen subfusiform and pubescent with the 

 petiole slender and second segment not elongate; terebra slender and 

 fully half length of abdomen. Legs black; femora dull red with the 

 anterior basally below, and the hind ones also above, nigrescent; tibiae 

 dull red and never white-marked, the hind ones infuscate at apex and 

 before their base. Wings with stigma broad, infuscate testaceous ; areolet 

 small and subpetiolate, emitting recurrent nervure a little before apex. 

 Length, 4 mm. J 9 • 



It is similar to A. msa/a/or in the structure of the head, antennae, meta- 

 thorax and areolet, but the thorax is less elongate, the abdomen subfusi- 

 form with the slender terebra nearly double as long, roughly pubescent, 

 the petiole less stout and a little longer, the second segment shorter, the 

 stigma broader and the hind tibiae not white-banded. 



Hitherto it has been known only from Sweden, where Thomson 

 described it from Palsjo, in the female sex. The late Mr. Alfred Beau- 

 mont has give me a female, correctly named by Prof. Sigismund Brauns, 

 which he caught at Whitby in Yorks on 25th August, 1897; I captured 

 certainly co-specific males, differing only in their normally more slender 

 abdomen, at Henstead marsh in Suffolk on 6th July, igo6, and at Louth 

 in Lincolnshire in June, 19 12. 



