CAMERON, KOSSOEKS. 215 



Hind ocelli separated from the eyes by 3 times the distance they are from each 

 other. Eyes parallel, reaching to the mandibles. 



Salius (Priocncinis) itorabilis, sp. nov. 



Black, the legs red, with I ho coxrc and trochanlers black; the wings hyaline, a cloud 

 along the transverse basal and median nervures, broadly behind them, more narrowly 

 beyond them, a cloud occupying the radial, the 2nd and 3rd cubital cellules and slightly 

 beyond them, the discoidal cellules except the basal at the base in front, and a narrow 

 cloud on the apex, fuscous black, tinged with violaceous, a 71 . - - Length 1 mm. 



Mn-u rainforest, 3000 3500 m. January. 



The 3rd antennal joint is as long as the -ith. Temples two-thirds of the length 

 of the top of the eyes broadly, roundly narrowed. Metanotum closely, but not very 

 strongly punctured. The long spur of the hind tibia 1 reaches beyond the middle. Hind 

 ocelli separated from the eyes, by about two and a half times the distance they are 

 from each other. Mandibles broadly red in the middle. Palpi black. 



Pompilus, F. 



A. Abdomen not landed with red at the base. 

 Synopsis of black species. 



1 (8) 3rd cubital cellule appendiculated. 



2 (5) Wings uniformly fuscous violaceous. 



3 (4) Radial nervure broadly roundly curved, not extending much beyond the posterior apex of 3rd 



cubital cellule, the apical abscissa of radius shorter than the basal two abscissae united. 



masaiensis. 



4 (3) Radius with apical abscissa straight, oblique, extending distinctly beyond the posterior apex of 3rd 

 cubital cellule, distinctly longer than the basal two abscissae united. melanochromus. 



5 (6) Wings almost hyaline, the apex clouded. 



6 (7) Apex of metanotum with an abrupt slope, covered with white woolly pubescence. 



eriophorus. 



7 (6) Apex of metanotum with a rounded slope, not covered with woolly hair, monospilus. 



8 (1) 3rd cubital cellule not appendiculated. 



9 (10) Wings clear hyaline, unspotted, the base of tibiae with a while band. Irunnipalpis. 



10 (25) Wings not entirely clear hyaline, the tibia? unspotted with white. 



11 (12) Wings with 3 clouds, the oral region, greater part of antennae and the apex of abdomen red. 



erythrostomus. 



12 (11) Wings with only an apical cloud, the base not clear hyaline. 



13 (11) Legs, 'oral region and base of antennae red. meruensis. 

 1-i (13) Legs, oral region and antenna; black. 



15 (16) Front raised in the middle, the raised part roundly dilated above. curvifrons. 



16 (15) Front not raised in the middle. 



17 (18) The 2nd and 3rd trans\erse cubital nervures touching in front, the apical abscissa of radius 



broadly roundly curved. rotundinervis. 



18 (16) The 2nd and 3rd transverse cubital nervures distinctly separated, the apical abscissa of radius 



straight, oblique. 



