CAMliRON, VESPIDAE. 171 



cense, the centre with a smooth furrow. $, Length to end of 2nd abdominal segment 

 10 mm. Mandibles fuscous black, the teeth rufous. 

 Usambara. 



Icaria cariniscutis sp. nov. 



Dark reddish brown, densely covered with a silky pile; the apex of the clypeus, a 

 line along the eye incision, a distinct line along the apex of the 2nd abdominal segment 

 brownish yellow; there is a lighter coloured, yellow line on the base of the pronotum; 

 the underside of the fore coxae pale yellow; the legs are darker coloured, almost black. 

 Wings hyaline, the apex of the costal cellule, the apical three-fourths of the radial, the 

 cloud continued in a curved line along the anterior part of the cubital cellules, dark fus- 

 cous, almost black, the nervures black, the stigma pale ochraceous. Scutellum with a 

 distinct keel down the middle, roundly convex. Centre of metanotum depressed, densely 

 covered with a silky pale pile, and finely transversely striated, the sides more strongly 

 obliquely striated, the striae clearly separated and more or less curved. The 1st abdo- 

 minal segment fully one half of the length of the 2nd, longish pyriform, the basal fourth 

 distinctly narrowed; the bell-shaped 2nd segment clearly longer than it is wide at the 

 apex. Base of mandibles pale yellow; the flagellum of antennae for the greater part 

 rufous. $, Length to end of 2nd abdominal segment 11 mm. 



Usambara: Mombo. 



Characteristic of this species is the distinctly, stoutly, longitudinally keeled scutel- 

 lum and the striated metanotum. 



Belonogaster SAUSS. 



The species of this genus appear to be well represented as regards individuals, 

 but the number of species is not great, being only 5 in number, of which 4 appear to 

 be undescribed, so far as I can make out. The genus is purely African, and there is 

 a good account of the species known to him by the deslinguished Austrian Hymenopter- 

 ologist, Mr F. F. KOHL, in the Ann. d. K. K. Naturh. Hofmus. 1894, p. 319337. 



Belonogaster juncens F. 



Vespa juncea FAB. Mant. Ins., 1, 293. Rcytlriyaxtcr jitnccus, Vespides, II, 14, 

 PI. 11, f. 2. - Bclonoyaster juncinx, GERSTACKER, Peter's Reise nach Mozamb., Zool. 

 V, 468; RITSEMA, Tijdschr. v. Ent. XVII, 202; SAUSSURE, Grandid. Hist. d. Madagasc. 

 XX, PI. 1, fasc. 25, 89 and 90; KOHL, Ann. d. K. K. Natur. Hofmus. 1894, 336. 



Usambara: Mombo, June; Tonga: Mkulumusi-caves, July. 



Belonosaster massaicus sp. nov. 



Black, a curved yellow line on the inner orbits, commencing at the end of the eye 

 incision and extending to the end of the upper 4th of the clypeus, becoming gradually 

 narrowed below; there is a similarly coloured spot below each antenna, - about twice 



