SYSTEMATIC ACCOUNT. 99 



Specimen examined: St. Vincent, West Indies, 1,000 feet (Williston type 

 material). The orbital bristles are missing on this specimen. 



Drosophila annularis Stxirtevant. 1916. Ann. Ent. Soc. Amer., 9, 327. 



D. annulata Williston. 1896. Trans. Ent. Soc. London, 409 (not Notiphila annulata 

 annulata Fallen. 1S1.3. Vet. Akad. Hand.; Drosophila annulata Zetterstedt. 1847. 

 Dipt. Scand. 6). 



Front less than one-third width of head; dark brown, grayish pollinose on frontal stripes, 

 a whitish spot above each antenna. Arista with about 7 branches above and 4 below. 

 Antennae yellowish, third joint darker above. Second orbital about one-fourth other two. 

 Only one large oral bristle. Face blackish brown; carina noselike. Cheeks brown; their 

 greatest width about one-fifth greatest diameter of eyes. Eyes with short, thick pile. 



Acrostichal hairs in 8 rows; no prescutellars. Mesonotuin dull brownish-black, with 

 narrow irregular grayish markings in front, and a pair of faint blotches behind; humeri 

 grayish. Scutellum dull black, its basal angles and apex grayish. Pleurae brown, grayish 

 pollinose. Femora brown, yellowish at tips; tibiae yellow, each with a basal and an apical 

 brown band; tarsi yellow. Apical and preapical bristles on first and second tibiae, pre- 

 apicals on third. 



Abdomen yellow, each segment with a broad posterior velvety black band. The bands 

 on the third, fourth, and fifth segments are broken in the mid-dorsal line. 



Cross- veins clouded; a black spot at tip of first vein. Costal index about 2.2; fourth- 

 vein index about 1.5; 5x index about 1.0; 4c index about 1.0. 



Length body 2.5 mm.; wing 2.5 mm. 



Specimens examined: St. Vincent, West Indies, 1,500 feet (Williston 

 type) ; Alajuelo, Panama (A. Busck). The St. Vincent specimen is headless. 



Drosophila fasciola Williston. 1896. Trans. Ent. Soc. London, 410. 



cf . Arista with about five branches above and three below. Antennae yellowish brown, 

 third joint darker. Front about one-third width of head, wider above; brown; vertex, 

 orbits, and triangle yellowish. Second orbital about one-fourth other two. Only one 

 prominent oral bristle. Carina narrow, flat; face yellowish brown. Cheeks brown; their 

 greatest width about one-fifth greatest diameter of eyes. Eyes with short, thick pile. 



Acrostichal hairs in six rows; no prescutellars. Mesonotum dull grayish-yellow, with 

 numerous brown dots, the latter coalescing to form a broad median stripe and a pair of 

 narrow anterior ones just inside the dorsocentral lines. Scutellum grayish yellow, each 

 bristle arising from a brown dot. Pleurae brown, slightly grayish pollinose. Legs pale 

 brown; femora darker at base, and tibiae with dark proximal and distal bands. Apical 

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



Abdomen brown, each segment yellowish at base. 



Wings clear, tip of first vein black. Costal index about 1.8; fourth-vein index about 1.6; 

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



Length body 2 mm.; wing 2.2 mm. 



Specimen examined: St. Vincent, West Indies, 500 feet (Williston type). 



Drosophila repleta Wollaston. 1858. Ann. Mag. Nat. Hist., 41, 117. 



D. punctulata Loew. 1862. Berlin, ent. Zeit., 6, 232. 



D. adspersa Mik. 1886. Wien. ent. Zeit., 5, 328. 



?Z). nigropunctata van der Wulp. 1892. Tijd. Ent., 34. 



?Z). marmoria Hutton. 1901. Trans. N. Zeal. Inst., 33, 91. 

 cf, 9. Arista with about five branches above and three below. Antennae grayish 

 brown, third joint reddish. Front about one-half width of head, wider above; gray; each 

 bristle arising from a dark-brown spot, and a pair of reddish-brown velvety Unes converging 

 below. Second orbital about one-third of other two. Only one prominent oral bristle. 

 Carina distinctly sulcate; face brown. Cheeks yellowish brown; their greatest width 

 about one-fourth greatest diameter of eyes. Eyes with thick pile. 



Acrostichal hairs in eight rows; a pair of slightly enlarged hairs in the prescutellar 

 position. In front of the dorsocentral bristles and in the same row with them are a few 

 eUghtly enlarged hairs. Two large humerals. Mesonotum and scutellum gray, each bristle 

 and hair arising from a dark-brown dot; these dots are irregularly fused into larger splotches, 

 and there is also a dark-brown splotch on the disk of the scutellum. Pleurae brown. Legs 



