74 THE NORTH AMERICAN SPECIES OF DROSOPHILA. 
less black. Wings grayish or yellowish hyaline; third section of the costal vein two-thirds 
the length of the second section. Anal cell incomplete. Length 2 mm. 
“Four specimens. St. Vincent.” 
I have not seen this species, so have reproduced Williston’s description 
verbatim. There is not enough information in this description to make it 
certain that the species belongs in the group typified by D. dubia; but I have 
placed it here because of the high probability that the following form, which 
clearly belongs here, is merely a color variation of Williston’s species. 
Drosophila splendida luteipes, new variety. 
Arista with about six long branches above and three below. Antennz yellow, brownish 
above. Front about one-half width of head, wider above; bluish-black above, yellow 
below. Second orbital exceedingly minute. Postverticals not evident. Only one promi- 
nent oral bristle. Carina very small, confined to upper part of face; face pale yellow. 
Cheeks dark brown; their greatest width about one-sixth greatest diameter of eyes. Eyes 
nearly bare. 
Acrostichal hairs in six rows; no prescutellars. Mesonotum metallic bluish black. 
Scutellum velvety black. Pleure dull brown, yellowish below. Legs, including coxe, 
pale yellow. Apical and preapical bristles on first and second tibiz, preapicals on third. 
Four basal segments of abdomen yellow, with posterior black bands. Fifth segment 
black. 
Wings clear. Costal index about 1.4; fourth-vein index about 2.7; 52 index about 
2.0; 4c index about 2.0. 
Length body 1.8 mm.; wing 2 mm. 
Type and one paratype from Herradura, Cuba, 1915 (C. W. Metz). 
Also seen from Bartle (C. W. Metz) and Havana, Cuba. 
As may be seen from the two descriptions given here, this form agrees 
closely with Williston’s description of D. splendida, except in the color of 
the legs. I have therefore described it as a variety of that species. 
Group D. 
Shining dark species; live in flowers. 
Drosophila lutzii Sturtevant. 1916. Ann. Ent. Soc. America, 9, 340. 
3, @. Arista with about four short branches above and two below. Antenne yel- 
lowish 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 greatest diameter of eyes. Eyes with short, sparse pile. 
Acrostichal hairs in six rows; no prescutellars. Mesonotum, scutellum, and pleure 
dark reddish-brown, somewhat polished. Legs pale yellowish-brown, femora somewhat 
darker. Apical and preapical bristles on first and second tibie, preapicals on third. All 
bristles shorter than is usual in the genus. 
Abdomen yellowish brown, lighter toward tip. 
Wings clear. Costal index about 2.1; fourth-vein index about 1.7; 5x index about 1.3; 
4c index about 1.1. 
Length body 1.7 mm.; wing 1.5 mm. 
Specimens examined: Biscayne Bay (Mrs. Slosson), Miami, Key West, 
Florida; Guane (F. E. Lutz), Havana (type material), Guareiras, Aguada 
Pasajeros, Cristo (F. E. Lutz), Guantanamo (C. W. Metz), Cuba; Hope 
Gardens, Jamaica (C. W. Metz); Naguabo, Mayaguez, Adjuntas, Porto 
Rico (Lutz and Mutchler); Mexico City, Mexico (R. Muller); Port Limon, 
Costa Rica. This species is possibly the same as D. fusca Coquillett, from 
Porto Rico; but the type of that species is lost, and the description does 
not entirely fit this form, or any other known to me, especially with respect 
to the orbital bristles. 
D. lutzii is very common in many parts of the tropics. It is to be found 
in large numbers in the flowers of certain plants. I have collected it in 
