- 48 - 



1 619-11 nigritulis, his genubus laLe et obscure piceolis, corpore 

 anlico parce brevissiiiie subaureo piloso, abdoniine simili ter licet 

 loiigius pnltescenle. Anteniia) suljtiles, brèves, articulis 3-6 eloii- 

 gaLis, 7-8 paulo longioriljus (juani lalioribus, 3 ultiiuis clavulalis. 

 Caput paruiu impressum, sed oninino plaiiuni, crebre subti- 

 liler rugosule punclulatum. Tborax convexus, capite vix for- 

 tius punctulatus, antice fortiter allenualus. poslice sat angusla- 

 tus. Elytra tboracequarta parte longiora, fere duplo latiora, oiiinino 

 œqualia, paulo forlius punctato-rugosula. Abdomen subtilius cre- 

 berrime puiictulatum. a" segmento 5° ventrali sat obsolète, 6" 

 latius impresso, apice vix emargiiiato, 7° sat late triangulariter 

 inciso. — Long., 3 1/3-3 1/2 mil). 



Rift Valley : Kijabé, 8 ; Kibwesi ; Kisoumou ; Escarpment. 



Abyssinie, Mashonaland, Transvaal, Natal. 



Se place dans le groupe du nigritulus Gyll. 



29. Stenus prospecter *. 



Niger, anlennis tarsisque testaceis, illarum clava 5-articulata, 

 nigritula, capite tboraceque perangustis, fere opacis, elytris aljdo- 

 uiineque nilidulis, hoc vix griseo pubescenli. Antenute brèves, 

 tenues, articulis 2-0 longioribus quam lalioribus. Caput fere pla- 

 num, medio vix umbonatum, crebre sublilissime rugellum. Thorax 

 antice magis quam poslice angustalus, vix fortius rugellus, anle 

 basin medio vix canaliculalus. Elylia amplissima, thorace haud 

 triplo latiora, quadrata, convexa, sat fortiler dense puiiclaia. 

 Abdomen subtiliter dense punclulatum. o" segmento 7' ventrali 

 apice late sat profunde inciso. — Long., 3 1/2 mill. 



Samburu, 4. 



30. Stenus ascendens *. 



In sectione St. KicsenwcUeri Rosh., sed totus alius,' facie St. 

 scralatoi-ein Er. parum simulans. Niger, nitidulus, abdoniine vix 

 griseo pubescente, palpis, antennis prœter clavam vix infuscatani 

 pedibusque squalide testaceis, femoribus vex'sus apicem et tibiis 

 basi parum fuscis. Totus crebre fortiler punctatus, licet elytris 

 paulo fortius et paicius, abdominis apice conlra densius et subli- 

 lius. Anlennœ tenues, sat elongatfe, articulis omnibus longioribus 



