392 Annals of the Carnegie Museum. 



Dr. Schiner says that it is "eine echte Drosophiline" and adds "die 

 Randader nur bis zur Miindung der Cubitalader reichend; die Fliigel- 

 spitze durch eine etwas vorgezogene Ecke deutlich markirt." Schi- 

 ner's definitions clearly point out that it belongs to the genus Leuco- 

 phenga. 



13. Leucophenga frontalis Williston. 



Drosophila frontalis Williston, "On the Diptera of St. Vincent (West Indies)," 

 Trans. Ent. Soc. Lond. 1896, Part III, p. 413. Professor Williston states defi- 

 nitely: "the costal vein terminates at the tip of the third vein." 



Leucophenga frontalis Williston, "Manual of North American Diptera," 1908, 

 p. 302 in footnote to Leucophenga: " Including such species as Drosophila frontalis 

 and perhaps others described as Drosophilce." 



The following observations are here incorporated as they relate to 

 forms, one of which might be confounded with Leucophenga and the 

 other may turn out actually to belong to this genus. 



Drosophila ornatipennis Williston, "On the Diptera of St. Vincent 

 West Indies)," Trans. Ent. Soc. Lond., 1896. Part III, p. 407, 

 PI. XIII, fig. 151, wing. 



The broad, almost ovate, at apex distinctly pointed maculated wing 

 as given in fig. 151 is very suggestive of a Leucophenga, but any doubt 

 that could possibly arise, has been removed by Professor Williston 

 himself in his Manual of North American Diptera, 190H, p. 300, fig. 5, 

 where, no doubt, the reproduction of the wing of ornatipennis is used 

 in illustrating the wing of a Drosophila, and he points out definitely 

 in this fig. 5 that the casta reaches the apex of the fourth vein, though 

 this fact is far from being clear in the original fig. 151. Among the 

 large number of not less than twenty-two new species of Drosophila 

 described in the " Diptera of St. Vincent," we need not search for any 

 species belonging to Leucophenga, except frontalis, for the distinguished 

 author would have pointed out that fact, if the termination of the 

 costa had shown any diflerence from typical Drosophila. 



Drosophila giganlea Thomson. Kongl. Svenska Fregatten Eugenics 



Resa etc. Diptera, p. 596 (1868).'^ 



19 OsTEN Sacken in his Catalogue of Diptera of N. Amer., 1878, on p. xliii gives 

 this footnote: "Brauer, Bericht iiber die wissenschaftlichen Leistungen, etc. fiir 

 1868, contends, that although the title-page bears the year 1868, the volume was 

 actually issued only in 1869; this, in order to secure the priority of the volumes of the 

 Novara Expedition, which appeared in 1868." 



