166 MR. CLAUDE MORLEY ON AFaiCAN 



Magwenga, gen. uov. 



Mandibles nnidentate, apically acuminate, not extei'nallj sul- 

 cate ; cheeks and temples elongate and quite straight, not buccate ; 

 frons centrally carinate ; occiput and juxta-sciobal orbits acutely 

 margined. Fiagelluxn filiform and apically strongly attenuate, 

 its basal joints elongate. Metathoracic spiracles linear and 

 elongate ; metanotum with neither carinse nor arete, its centre 

 slightly elevated. Scutelluin laterally carinate throughout. Post- 

 petiole not at all sculptured, with no apical fovea ; gastrocoeli 

 large; apex of second segment centrally emarginate; hypopygiiini 

 remote from anus. All the claws stoutly pectinate. Wings 

 hyaline with a central fascia and apical spot nigrescent. — Neai'est 

 to Caspipina, but the cheeks are not buccate, the Hagellum not 

 compresso-dilated ; metanotum excainnate ; postpeiiole neither 

 basally elevated nor apically foveate ; basal nervure not con- 

 tinuous ; tarsi pectinate and wings maculate. 



1. maculipennis, sp. n. 



A dull black female, with tlie hind cox;e red ; the wings 

 centrally bhick-banded, with a circular apical spot. Head long, 

 glabrous and sparsely punctate, behind the eyes parallel ; clypeus 

 and face deplanate, hardly discreted, with confluent and some- 

 what close punctures, apex of former truncate and laterally mar- 

 gined ; palpi white ; cheeks longer than breadth of the white 

 base of mandibles. Antennae black with their centre, except 

 laterally, white-banded. Thorax stout, convex and closelj^ punc- 

 tate, discally smooth; notauli obsolete, speculum small and 

 glittering; raetathorax discally smooth and shagreened, its base 

 depressed bat not sulcate ; petiolar area triangular and laterally 

 striate, very small; apophyses wanting. Scutellum large, smootli 

 with a few punctures, broadly margined, with extreme apex 

 aciculate. Abdomen elongate-fusiform, roughly punctate, with 

 anus from fifth segment and the postpetiole glabrous ; petiole, or 

 at least its base, red ; gastrocceli large and double breadth of their 

 intervening space ; terebra hardly exserted. Legs stout ; an- 

 terior with coxfB, inner side of tibiae and of their femoral apices, 

 flavidous ; hind trochanters and their indefinitely scopulate 

 coxae bright red ; third and fourth hind tarsal joints white. 

 Wings hyaline and not broad ; areolet not quite coalescent above, 

 lower basal nervure strongly postf ureal ; a central broad infumate 

 band from the basal to centre of the disco-cubital nervures and a 

 round concolorous spot on apex of radius ; hind wing also 

 infumate in radial cell. Length, 10-11 mm. 5 only. — These 

 remarkable females are from 3700 feet at Buddu on the west 

 shores of the Victoria Nyanza, on 19th September; and from 

 3800 feet to the south-east of Buddu, in the Tero Forest, on 

 26th September, 1911, in Uganda. 



