lOHNEUMONIN^ IN THE BRITISH MUSEUM. IGl 



constricted but not coalescent nbove ; radius not apically curved, 

 nervelet obsolete, basal nervure coutinuoiis througli the median. 

 Length, 12 mm. 5 only. — The abdominal structure is similar 

 to that of A. suhsericans Grav. Found at Salisbui'v in Mashona- 

 land by G. A. K. Marshall during March 1900. 



Spilichneumon. 



No African species have yet been assigned to this genus, which 

 was divided fi-om Ambli/teles by Prof. Thomson (Opusc. Entom. 

 xix. 1894, p. 2087) ; and it has been but little employed by 

 systematists. The range, however, is much broader than has 

 hitherto been suspected ; and I find that Cameron's two genera, 

 Hflliphera (Entomologist, 1903, p. 237) and Euiani/acr a {Trant^. 

 Ent. Soc.Lond, 1903, p. 227) represent respectively the females 

 and males thereof. Further, Cameron mistook Barichneumoii, 

 among the Oxypygini, for the present genus. 



1. DIDYMATUS, sp. n. 



An elongate black species with profuse whitish markings; the 

 legs and abdomen, except its base, red with the segmental angles 

 whitish. Head transverse and obsolete behind the eyes; outer 

 orbits broadly, inner to vertex, whole face, and mouth-parts 

 except apices of the slender mandibles, flavescent white ; clypeus 

 broad, apically truncate, and not basally discreted from the evenly 

 punctate face ; occiput shining, pilose and finely punctate. 

 Antennae half length of body, attenuate, with the joints short 

 and subserrate ; scape white beneath. Thorax shining and 

 finely punctate, discally deplanate ; notauli elongate but super- 

 ficial ; pronotal margin, prosternum, broad callosities befoie 

 i-adices and a line below them, a mesosternal spot and a transverse 

 mark ]:)eloAV hind radices, a discal mesonotal spot and the whole 

 dentiparal area?, white; mesopleurse and a mark above the meta- 

 pleuree red ; upper metanolal carinae strong, areola glabrous and 

 subquadrate with its base centrally elevated and extending to 

 postscutellum ; spiracles elongate, apophyses wanting. Scutellum 

 and the glabrous postscutellum flavous ; former deplanate, 

 glabrous, sparsely and evenly puuctate, not margined. Abdomen 

 deplanate, subparallel-sided, somewhat dark red Avith sides of 

 the four basal segments apically, and apices of the basal or two 

 basal narrowly, whitish ; fii-st segment black with the post- 

 petiole evenly and somewhat difi"usely }!inictate ; gastrocoeli 

 narrower than the intervening space ; hypopygium spinately 

 produced; terebra, concealed. Legs somewhat islender; anterior 

 coxpe, and marks above and below the black hind ones, whitish ; 

 hind tarsi infuscate. Wings hyaline ; tegula? white, costa black, 

 stigma f ei^ruginous ; areolet higher than broad, not coalescent 

 above. — The S has the antennpe longer and more strongly 

 serrate; basal segment red before its pale apex; mesopleura?, 

 metapleural mark, and apical margins of the four basal segments. 



Proc. ZooL. Soc.~1919, No. x'l. 11 



