76 THE NORTH AMERICAN SPECIES OF DROSOPHILA. 
Acrostichal hairs in six rows; no prescutellars. Two large humeral bristles. Meso- 
notum dull reddish-yellow, with a pair of darker longitudinal stripes and dark areas on and 
behind the humeri. Scutellum reddish yellow. Pleurz pale yellow, a reddish line running 
forward from base of wing; darker above this line. Legs pale yellow. Apical bristles 
evident only on second tibiz, preapicals only on third. 
Abdomen dull reddish-yellow, with posterior black bands on four basal segments. 
Wings clear. Costal index about 1.9; fourth-vein index about 2.0; 5x index about 1.8; 
4c index about 1.4. 
Length body 2.0 mm.; wing 2.0 mm. 
Specimens examined: Adjuntas, Porto Rico (Lutz and Mutchler, type 
material); San Francisco Mountains, Haiti (A. Busck). 
Some of these specimens are a little smaller and have the dark markings 
scarcely visible. Since intermediates are present, it seems probable that 
these differences are due to age. 
Drosophila quadrata Sturtevant. 1916. Ann. Ent. Soc. America, 9, 341. 
&, @. Arista with about six branches above and three below. Antennze brown. 
Front one-half width of head, wider above; pale yellow. Second orbital not larger than 
neighboring hairs. One large vibrissa, other oral bristles reduced practically to hairs. 
Carina low and narrow, face broad and excavated on each side of it; face yellow. Proboscis 
yellow, palpi dark brown. Cheeks yellow; their greatest width about one-fifth greatest 
diameter of eyes. Eyes with yellow pile. 
Acrostichal hairs in eight rows; no prescutellars; the anterior dorsocentrals are only a 
little behind the transverse suture. Only one large humeral bristle. Mesonotum, scutel- 
lum, pleurz, and legs dull brownish-yellow. There is a dark-brown stripe on the pleura 
extending as a straight band from just under the haltere almost to the neck. Below this 
stripe the pleura is paler. Apical bristles evident only on the second tibie, preapicals 
only on third. 
Abdomen yellow, each segment with a dark-brown posterior margin. 
Wings clear. Costal index about 1.0; fourth-vein index about 5.5; 5x index about 6.0; 
4c index about 5.0. 
Length body 1.8 mm.; wing 2.0 mm. 
Specimens examined: Kushla, Alabama, April 1915 (type material); 
Tifton, Georgia, October 1896 (Melander collection); La Fayette, Indiana, 
July 1915 (J. M. Aldrich). 
I collected this species by sweeping, and was unable to get it to breed on 
fruit. 
Drosophila poeyi, new species. 
o. Arista with about five branches above and two below. Antennze brown, third 
joint long, darker. Front slightly over one-third width of head; yellow, with two reddish 
stripes converging below, ocellar dot dark brown. Second orbital about one-half other two. 
Only one prominent oral bristle. Carina high, narrow; face brownish yellow. Proboscis 
dark. Cheeks yellow; their greatest width about one-sixth greatest diameter of eyes. 
Eyes with sparse pile. 
Acrostichal hairs in six rows; no prescutellars. Two large humeral bristles. Meso- 
notum yellow, with six shining reddish-brown stripes, as follows: the broadest pair between 
the dorsocentral rows, a narrow pair including the dorsocentral rows, and a pair outside the 
dorsocentral rows reaching only as far forward as the suture. Scutellum shining reddish- 
brown, with yellow lateral margins. Pleurs and legs pale yellow. Apical bristles evident 
only on second tibiz, preapicals only on third. 
Abdomen blackish brown, fourth and fifth segments pale yellow. 
Wings clear. Costal index about 2.0; fourth-vein index about 2.0; 5x index about 1.7; 
4c index about 1.2. 
Length body 2.0 mm.; wing 2.0 mm. 
Type and two paratypes; on window, Poey Museum, National Uni- 
versity, Havana, Cuba, January—February 1915. 
