FOUR NEW AFRICAN GALl, MllxiKS. 491 



Pour New African Gall Midges 

 By 



E. P. Felt, 



State Entomologist, Albany. New York. 



The gall-midge fauna of Africa, like that of many other 

 groups, is exceedingly interesting and peculiar. A study of 

 the Avorld distribution of gall midges^ shows that a number 

 of the more widely distributed genera are found in Africa, 

 and the presumption is that the list of these forms would 

 be greatly increased if the fauna were better known. There 

 ai'e something like three hundred genera and presumably 

 three thousand species of these fragile insects, and it is safe- 

 to state that only a very small pi-oportion of the rich African 

 fauna has come to the attention of entomologists. 



The following new species, including representatives of 

 two new genera, have been submitted for study through the- 

 courtesy of Prof. C. P. Alexander, of the State Natural 

 History Survey, Urbana, 111., U.S.A. 



Xenhormomyia n. g. 



The structure of this remarkable fly suggests a relationship- 

 to Hormomyia R. Lw., and further study may show it to 

 be a connecting link between the Asphondylarife and the- 

 I to nidi din aria?. It also exhibits characters in common 

 with the American Caryomyia Felt — a genus which upon 

 further study we have placed in the Asphondy larias. 



Xenhormomyia is readily distinguished from its allies- 

 by the distinctly constricted flagellate antennal segments- 



' ' National Academj" of Science Proc.,' vol. iii, pp. 349-35-i. 



