340 Annals Entomological Society of America [Vol. IX, 



Naguabo, Porto Rico; San Jose, Costa Rica. The females 

 agree in all respects with the above description. The species 

 is usually found in flowers of Datura, melons, etc. on the 

 decaying petals of which it breeds. 



The well developed prescutellar bristles, clear wings and 

 dull brown color will be suflicient to distinguish this species 

 from any others known to me. 



Drosophila lutzii, n. sp. 



cf . Arista with four short branches above and two below. Antenna 

 yellow brown. Front over one-third width of head, wider above; 

 opaque dark brown, orbits and triangle polished. Second orbital about 

 one-fourth other two. Only one large oral bristle. Carina rather 

 broad, flat, edges sharply angled; face brown. Cheeks brown, their 

 greatest width about one-fifth height of eyes. Eyes with short sparse 

 pile. 



Six rows of acrostichal hairs; no prescutellar bristles. Dorsum of 

 thorax, scutellum and pleurae dark reddish brown, somewhat polished. 

 Legs pale yellowish brown, femora somewhat darker. Apical and pre- 

 apical bristles on first and second tibiae, preapicals on third. 



Abdomen yellowish brown, lighter towards tip. 



Wings clear, veins yellowish. Costal index about 2.1; 4th vein 

 index about 1.7; 5x index about 1.3; 4c index about 1.1. 



Length body 13/:(mm., wings l>^mm. 



Type and four paratypes ( cf and 9), collected at Havana, 

 Cuba, January, February, 1915. The species is very common 

 in many parts of tropical America. I have examined specimens 

 from Guane, Cristo, Havana, Aguada Pasajeros, Guareiras and 

 Guantanamo, Cuba; Hope Gardens, Jamaica; Naguabo, May- 

 aguez and Adjuntas, Porto Rico; Port Limon, Costa Rica; 

 Biscayne Bay, Key West, and Miami, Florida. It is found 

 in flowers, especially those of Datura, and breeds on the decaying 

 petals. The female agrees with the above description of the 

 male. 



The species will be easily known by its small size, shining 

 reddish brown color and short bristles. 



Drosophila prognatha, n. sp. 



cf. Arista with six branches above and two below. Antennae 

 yellow, third joint very long and covered with yellow hairs. Front 

 over one-third width of head, dull yellow, ocellar dot brown. Second 

 orbital one-fourth other two. Vibrissae long, other oral bristles short. 

 Proboscis prominent and projecting, forward; carina short, low, nar- 

 row and confined to upper part of face. Face dull yellow. Width of 



