51 



Java, the five described species of this genus all belong to Cape 

 Colony. In the South African species R. costata, Lw., R. edentula, 

 Wied., and R. pusilla (Erodiorhynchus pusillus), Schin., the wings, 

 instead of being conspicuously banded with brown as in R. 

 denticornis, Wied. (Plate III., fig. 18), are hyaline or nearly so. 

 In the case, however, of an at present undescribed species of this 

 genus, of which the Museum has recently received a single female, 

 from the Benue River, Northern Nigeria, between Bagana and 

 Lokoja, March, 1907 (Dr. G. J. Pirie), the wings are marked in a 

 very similar manner to that seen in R. denticornis. 



Nothing is known as to the life-history of any species of Rhino- 

 myza. Dr. Pirie's field-note on the specimen presented by him 

 is as follows : " Caught on a sand-bank in the evening, while we 

 were sitting out by lamp-light : bit a European." 



Rhinomyza denticornis, Wiedemann. 



Aussereuropaische zweifliigelige Insekten, I., p. Ill (1828) [Silvius 



denticornis}. 



PLATE III., FIG. 18. 



This handsome South African species is fairly well represented 

 in the Museum Collection, which includes a series of three males 

 and eighteen females, from Cape Colony, Natal, the Transvaal, 

 and Southern Rhodesia. The details as to localities, etc., are as 

 follows. Cape Colony : One female from Knysna (R. Trimen). 

 Natal : two males and one female from " Port Natal," 1855, 1857 

 (Gueinzius) ; two females from Durban ( W. L. Distant) ; one female 

 from Malvern, and three females from Karkloof, February, 1897 

 (G. A. K. Marshall] ; one female from Durban, January 10th, 

 1899, " caught in train to Pietermaritzburg " (Captain 8. R. 

 Christophers, I.M.S.). Transvaal : a female from Johannesburg, 

 1905 (A. J. Cholmley) ; a male and female without precise locality, 



