ICHNEUMONINjE in the BRITISH MUSEUM. 123 



the type at Entebbe in Uganda on 17th June, 1913 ; and Neave 

 took another female, with entirely black (probably owing to 

 grease) abdomen, at Mlanje in Nyasaland, on 8th February, 

 1913. 



Oatadelphus. 

 Wesmael, Bull. Acad. Sc. Belg., Annexe, 1854, p. 134. 



Not more than half a dozen species are yet described, but these 

 are (lisf3ributed over southern Europe to the Red Sea, the United 

 States, Central America, and the northern half of Africa. 



Table of African Species. 



(2) 1. Al«r areolet pentagonal ; legs black, tibiiB and 



tarsi red 1. anceyi Berth. 



(1) 2. Alar areolet triangular; hind femora and tibiaj 



black or red. 

 (-1) 3. Head quadrate and black ; hind femora and tibia; 



fulvous %. nifjrocyaneus Tosq. 



(3) 4. Head transverse and red; hind femora and tibiae 



black 3. ruhricapid M.ov\. 



3. RUBRICAPUT, Sp. n. 



A large, blue-back insect with the anus and centre of flagellum 

 white-marked. Head indefinitely rufescent, small and constricted 

 behind the prominent eyes ; face closely punctate, transverse and 

 not higher than the sparsely punctate and apically truncate 

 clypeus ; mandibles aciculate - punctate, with their margins 

 smooth and teeth black ; frons centrally suleate and somewhat 

 ele\^ated. Antennae black and rather strongly inflated beyond 

 the central white band which is broad, but incomplete below. 

 Thorax black and closely punctate ; mesonotum, especially 

 laterally, smoother with elongate and subparallel notauli ; meta- 

 notal carinse entire, areola narrow and obsoletely discreted from 

 the basal area, apically elevated and emitting costulse from its 

 centre ; petiolar and dentiparal area obliquely substriate ; 

 spiracles elongate, apophyses wanting. Scutellum black, convex 

 and smooth, with large and sparse puncturation ; its lateral 

 carinas vallate and extending to near apex. Abdomen deplanate, 

 elongate fusiform and blue with purpurascent reflection ; post- 

 petiole shagreened and centrally aciculate, second and third 

 segments very finely punctate and dull with gastrocceli of former 

 deeply impressed, though hardly as broad as the striate and 

 transimpressed intervening space ; remainder nitidulous with 

 disc of seventh, and apex of sixth discally, flavous ; venter plicate 

 throughout, with terebra slightly exserted and spicula red. Legs 

 slender and black (femora et tibiaa anticorum, articulis 3-5 

 tarsorum posticoruni desunt). Wings evenly nigrescent through- 

 out, with brilliant blue iridescence ; stigma, nervures, and the 

 punctate tegulse, black ; areolet triangular, subcoalescent above ; 

 basal nervure continuous thi'ough median, nervelet obsolete. 



