1916] North American DrosophilidcE 337 



Port Limon, Costa Rica; Panama, R. P.; Miami, Fla. The 

 species is named for Sr. Patricio Cardin, of the Estacion Agro- 

 nomico, Santiago de las Vegas, Cuba, through whose kindness 

 Dr. C. W. Metz and I were enabled to collect some of the 

 material of this and other species. 



This species is quite variable in color, especially in the 

 female sex. Many specimens are quite pale, and have little 

 black on the abdomen. Dr. C. W. Metz and I have bred 

 several stocks through many generations and have found these 

 variations not to be inherited. They are, however, likely to 

 cause confusion, since these pale females are practically indis- 

 tinguishable from females of D. similis Willist. These two forms 

 are quite distinct, as breeding experiments have shown, and we 

 have been unable to cross them, but it is safest not to identify 

 females as D. similis unless they have been bred, or the males 

 are known. 



Ordinarily the peculiar shining reddish brown thorax and 

 shining black markings on the abdomen, together with the 

 clouded cross veins, will serve to distinguish D. cardini. 



I have found this species very common about fruit, on which 

 it breeds, in Cuba and Central America. It is not at all rare 

 in southern Florida. 



Drosophila melanderi, n. sp. 



9 . Arista with five short branches above and one below. Antennas 

 yellow, third joint red-brown. Front nearly one-half width of head, 

 reddish yellow, triangle brown. Second orbital about one-fifth other 

 two. One bristle and numerous hairs on oral margin. Carina low, 

 flat and narrow. Face yellow. Cheeks yellow; their greatest width 

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



Acrostichal hairs in six rows; no prescutellars. Dorsum of thorax 

 and scutellum somewhat shining reddish yellow. Pleurse reddish 

 yellow. Legs yellow. Apical and preapical bristles on first and 

 second tibiae, preapicals on third. 



Abdomen dull yellow, each of first four segments with an interrupted 

 posterior dark brown band. 



Wings clear, veins brown. Costal index about 3.0; 4th vein index 

 about 1.3; 5x index about 1.1 ; 4c index about 0.7. 



Length body 2>^mm., wings 3mm. 



Type and one paratype, Tacoma, Washington, August 27, 

 1911 (A. L. Melander). One specimen, Mt. Constitution, 

 Washington. The type is in Professor Melander's collection. 



