164 BRITISH ICHNEUMONS. [Olesicampa 



1. auctor, Graw 



Cc7iiipo/)/cx auctor, Gr. I.E. iii. 566, s ? . Limncria aiictor, Holmgr. Sv. 

 Ak. Handl. 1858, p. 95; Bridg. -Fitch, Entom. 1885, p. 207, <r ?. Olesicampa 

 auctor. Thorns. O.E. xi. 1140, j ? . 



A black species with centre of abdomen and the legs red, their base 

 and liind femora black or the latter centrally castaneous ; mesopleurae 

 nitidulous. Length, y-g mm. 



The only species of the genus with nigrescent tegulae, striolate pro- 

 notum, and the metanotal areola not distinctly elongate. 



Found on umbelliferous flowers in the middle of July in Germany ; not 

 common in Sweden and Lapland in August and at the end of June ; 

 Belgium in June and France; Brischke bred it (Schr. Nat. Ges. Danz. 

 i88o, p. i66) from Hadena siiffuruncula pupae. In Britain, Bignell cap- 

 tured it at Bickleigh on lyth August and 4th September; but it is very 

 rare with us and I have only once taken it, on ist June, 1904, between 

 my fingers while it was hovering about a whitethorn hedge at Bramford 

 in Suffolk. 



2. gracilipes, Tlioius. 



Olesicampa gracilipcs, Tlioms. O.E. .\i. 1143, d ? . 



Black and densely silver-pubescent with the vertex not very broad, the 

 flavous cheeks little buccate and the legs slender ; abdomen black with 

 its anus, and sides towards the anus, fulvidous and ventral plica stramin- 

 eous ; clypeus of cj apically, and of V somewhat broadly, lla\()us ; 

 callosity before radices whitish ; all the trochanters stramineous; antennae 

 flavidous and basally nigrescent above. Length, 6-7 mm. 



Very distinct in having the apices of the hind coxae and their whole 

 trochanters and the cheeks pale, the ai)ical half of the abdomen testa- 

 ceous with a black discal vitta. 



Described by Thomson from Scandinavia, and subsequently recorded 

 by Gaulle from France. There is a beautiful female in my collection, 

 captured some thirty years ago by Dr. Capron in the neighbourhood of 

 Shere in Surrey. 



3. fulviventris, Cnicl. 



Ichiicjtnioii fulvix'cutris, Gmel. S.N. 1790, 2704. Campoplex fulviwiitris, 

 Gr. I.E. iii. 540; Molmgr. Sv. Ak. Handl. 1854, p. 19, <? ?. Limncria fulvi- 

 ventris. Holmgr. lily. cit. 1858, p. 86 ; Brisch. Schr. Nat. Ges. Danz. 1880, p. 165; 

 Bridg. -Fitch, Entom. 1885, p, 206, <J ? . Olesicampa fulviventris. Thorns. O.E. 

 xi. 1140, cT ? . 



l^lack with the abdomen centrally broadly and most of the legs red ; 

 cheeks not excavate ; lateral petiolar sulci wanting and spiracles far 

 remote from their lateral scrobes; ventral plica pale; metathoracic carinae 

 nearly wanting. Length, 8-9 mm. 



Recognised from its allies by the subrectangular apex of discoidal cell, 

 the curved apex of radial cell little longer than the basal abscissa, the dull 

 mesopleural speculum, apically rugose-punctate metathorax and not 

 apically black hind tibiae, which are but narrowly .subinfuscate. 



Mohngren and Tosquinet noticed it from June to August in damj) 

 Swedish woods and Belgium; (^ravenhorst found it in |uiie in (iermany, 



