SYSTEMATIC ACCOUNT. 73 



Acrostichal hairs in eight rows; prescutellars present. Mesonotum, scutellum, and 

 pleurae dull brownish-yellow. Legs pale yellow. Preapical bristles on all tibiae. All 

 bristles and hairs brown. 



Abdomen dull brown, each segment darker posteriorly. 



Wings clear. Costal index about 2.5; fourth-vein index about 1.9; 5x index about 1.5; 

 4c index about 1.2. 



Length body 2.2 mm.; wing the same. 



Type and two paratypes, Havana, Cuba. January-February, 1915. 

 The male agrees with the above description. The first specimen seen was 

 taken on a pineapple. 



The chromosomes have been described by Metz (1916, Amer. Nat., 50, 

 590; see p. 39 of this paper). 



Group C. 



Postverticals and second orbitals minute; eyes nearly bare; small, metalhc-colored 

 species; resemble Camilla, but have bare mesopleurse. 



Drosophila dubia, new species. 



cT. Arista with about five branches above and two below. Antennae dark brown. 

 Front over one-third width of head; shining black. Second orbital minute. Only one 

 prominent oral bristle. Carina very small and narrow, confined to upper part of face; 

 face dark brown. Cheeks brown; their greatest width about one-sixth greatest diameter 

 of eyes. Eyes nearly bare. No postverticals evident. 



Acrostichal hairs in six rows; no prescutellars. Mesonotum and scutellum shining 

 black. Pleurae black. Legs brownish yellow, femora brown. Apical and preapical 

 bristles on first and second tibiae, preapicals on third. 



Abdomen shining black. 



Wings clear. Costal index about 1.8; fourth-vein index about 2.0; 5x index about 1.3; 

 4c index about 1.3. 



Length body 1.5 mm.; wing 1.7 mm. 



Type and one paratype, Cristo, Cuba, 1915 (C. W. Metz). Also seen 

 from Herradura (C. W. Metz) and Havana, Cuba; La Ceiba, Honduras 

 (F. J. Dyer). The females agree with the above description. 



Drosophila metallica, new species. 



9 . Arista with about six long branches above and four below. Antennae dark brown, 

 prominent. Front about one-half width of head, wider above; dark brown, ocellar dot 

 black. Second orbital very minute. Postverticals minute. Only one oral bristle, that 

 one being rather small. Carina very low, confined to upper part of face; face shining 

 reddish-brown. Clypeus hidden. Cheeks brown; their greatest width about one-sixth 

 greatest diameter of eyes. Eyes nearly bare. 



Acrostichal hairs in six rows; no presciitellars. Mesonotum shining reddish-yellow in 

 front and on lateral margins, shading into metallic blue-black in the middle behind. Scutel- 

 lum velvety black. Pleurae yellow, with a large dark-bi:own spot above the middle coxa. 

 Legs yellow. Apical and preapical bristles on first and second tibiae, preapicals on third. 



Abdomen shining black. 



Wings clear. Costal index about 1.9; fourth-vein index about 2.0; 5x index about 1.8; 

 4c index about 1.3. 



Length body 1.5 mm.; wing 1.7 mm. 



Type and one paratype, Bartle, Cuba, 1915 (C. W. Metz). 



Drosophila splendida Williston. 1896. Trans. Ent. Soc. London, 412. 



" cf , 9. The large frontal triangle metallic-blue, the sides more brownish and the 

 frontal lunule yellow. Antennae yellow, the third joint somewhat brownish; arista thickly 

 and long plumose. Face opaque yellow, somewhat blackish in the concavities, with a 

 slight median carina. Mesonotum brilliant deep metalUc blue; scutellum deep opaque 

 black; pleurae black but little shining. Abdomen black, the basal segments more or less 

 yellow, apparently in life with distinct markings. Legs yellow; all the femora more or 



