PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



istaed M llVvL nHJ^H ^^ '*« 



SMITHSONIAN INSTITUTION 

 U. S. NATIONAL MUSEUM 



YqJ 99 Washington : 1949 No. 3249 



A REMAKKABLE NEW SPECIES OF TRYPETID FLY OF 

 THE GENUS CEEATITIS (SENSU STRICTO) FROM EAST 

 AFRICA IN THE COLLECTION OF THE UNITED STATES 

 NATIONAL MUSEUM 



By H. K. MuNRO 



In working over a small collection of flies of the family Trypetidae 

 received for identification from the United States National Museum, 

 the writer found a short series of a new species of the genus Geratitis 

 MacLeay, which is here described. 



CERATITIS (CERATITIS) CAETRATA, new species 



This small species is the fourth to be placed in Geratitis {sensu 

 8tricto),hVit only the second from the African Continent. The males 

 are characterized by the anterior upper orbital bristle that has a flat 

 expansion at the tip ; in this species the bristle is very long, 0.9 width 

 of head, and the expansion small, black, and circular. In the medium- 

 sized capitata (Wiedemann) the bristle is 0.5 width of head, the ex- 

 pansion black and lozenge-shaped; in malgassa Munro from Mada- 

 gascar, also of medium size, the bristle is 0.5 width of head, the 

 expansion small and white; and in the large catoirei Guerin from 

 Mauritius the bristle is 0.7 width of head, the expansion large, shield- 

 shaped, and white. 



This species is characterized also by the absence of inferior orbital 

 bristles and the very elongate vertical plates in the male, and in both 

 sexes by the prominent f rons and details of coloration, especially of the 

 dorsum of the thorax. 



829954 — 49 409 



