new or little-known Tipulitlo?. 3t3 



basal deflection of Cui at about mid-length of the lower side 

 of cell 1 st \f^. 



Ahdomen black, the penultimate segment brighter. 



Huh. \\'est Africa. 



Holotype, ^ , Lonji, about 50 miles north of Kribi, near 

 the Ulou River, Caraeroun, altitude about 1000 feet, 

 July 17, 1919 [J. A. Rein). 



Paratype, $, Grande Bassan, Jonchicr, Ivory Coast^ 1903 

 (/?. Blanchard)^ in the Paris Museum. 



Ceratocheihis jlavirostris is readily told by the dark colour 

 of tlie body, the ])ale yellow rostrum, and the very heavily 

 spotted wings. The short strai-^ht /?2+3 ^^^ the position 

 of the basal deflection of Ciiy is distiuctive of this species. 



Rhamphidina, subgen. nov. 



Rostrum long and slender, longer than the head. An- 

 tennae with 16 segments. Wings with Sc moderately 

 elongate, ending about opposite mid-length of Rs and not 

 close to i^i at the Aving-margiu ; Sco at the extreme tip of 

 Scx ; i^2+3 sinuate, diverging from the almost straight /J^+s ; 

 cell \st Mq open by the atrophy oi M; basal deflection of 

 Cux before the fork of M. 



Type of the subgenus. — Rhamphidia (^Rhamphidina) came- 

 rounensis, sp. n. (Caineroun). 



Rhamphidia [Rhaniphidina) earner ou7iensis, sp. n. 



General coloration dark brown, the thoracic pleura more 

 yellowish ; halteres brown ; wings hyaline, the stigma pale 

 brown ; cell Ri narrowed before its outer end ; cell 1st M2 

 open. 



Male. — Length about 4' 2 mm. ; wing 3'8-4 mm. 



Rostrum long and slender, longer than the head, dark 

 brown ; palpi dark brown. Antennje dark brown. Head 

 dark brown. 



Mesonotum brown, the lateral portions and the pleura 

 dull yellowish testaceous. Halteres dark brown, the stem 

 pale. Legs witii the coxffi brownish testaceous ; trochanters 

 testaceous ; femora dark brown ; tibiie dark brown, the tip 

 and all the tarsi broken. Wings liyaline, the stigma pale 

 brown; veins dark brown. Venation: Sc rather short, 

 SCi ending just beyond mid-length of Rs, Scj at the extreme 

 tip of Sci and exceeding it in length; Rs long, almost 

 straight ; ^^2+3 long, gently sinuate ; cell Ri narrowed 



