22 Dr. C, P. Alexander on African Crane-flies 



brown, tlie tips paler, tlie tergal valves very long, almost 

 straight, slightly upcurved at the tips. 



hab. Uganda. 



Hulutype. ? , " Col. Cole's house, NTB, early morning," 

 November 1904 [Capt. E. D. IF. Greig). B.M' 1905. 310. 



Type in the collection of the British ^Museum (Natural 

 History). 



Rhamphidia cacoxena, sp. n. 



Rostrum very long and slender, nearly as long as the head 

 and thorax taken together ; head grey ; raesonotum black ; 

 pleura dark brown, the metapleura more brownish yellow ; 

 coxie and trochanters black ; wings iridescent, the apex and 

 stigma brown; abdomen black, the last segment orange. 



Female. — Length (excluding rostrum) about 5'5 mm. ; 

 wing 5 mm, ; rostrum 1*4 mm. 



Rostrum very long and moderately slender, nearly as 

 long as the combined head and thorax ; palpi dark brown. 

 Antennae dark brown. Head grey. 



Pronotum brown. ]\Iesonotum black. Pleura dark 

 brown, the dorsal pleurites and metapleura obscure brownish 

 yelhjw. Hulteres dark brown, the base of the stem dull 

 yellow. Legs with the coxEe and trochanters dark brown ; 

 femora dark brown ; remainder of the legs broken. "Wings 

 subhyaline, the costal and subcostal cells and the wing-tips 

 darkeneil ; stigma dark brown, large, extending across cell 

 Ri to vein i?2+3 '■> membrane iridescent. Venation as in 

 R. iris, but the basal deflection of Cu\ before the middle of 

 cell 1^/ M^ ; cell R-^Kt the wing-margin but little wider than 

 ceil Rx. 



Abdomen black, the genital segment and valves of the 

 ovipositor orange; vahes of the ovipositor straight, the tips 

 a little upcurved. 



J]ab. Southern Nigeria. 



Holotijpe, ?, llesha, August 17, 1910 {Capt. L. E. H. 

 Humfrey). " Caught in house." 



Presented by the Entomological Eesearch Committee, 

 1911.422. 



Type in the collection of the British Museum (Natural 

 History). 



Rluimphidia cacoxena very closely resembles i?. iris., of which 

 it appears almost as a miniature; the different coloration of 

 the posteiior sclcrites of the mesonotum will separate the 

 two species. 



