Kahl: The Dipterous Genus Leucophenga Mik. 383 



first posterior cell rather wider at apex than at middle, but at any rate 

 not narrower. In ornativentris the reverse is the case, the cell being 

 slightly narrower at apex than at middle. In the specimen from 

 Sapucay the third and fourth veins have a tendency to divergency, in 

 ornativentris to convergency; the second vein seems straighter at apex 

 than in ornativentris; the third antennal joint is a little longer, with 

 the rays of the arista seven above and four below (seen only in one 

 antenna) ; the extraordinary narrowness of the front is, no doubt, to be 

 ascribed to its immature condition; the black spots on third abdomi- 

 nal segment are separated, the median spot not quite reaching the 

 base and the two side-spots only halfway towards the base of the seg- 

 ment. Drosophila piilchra Schiner has also an oblique posterior cross- 

 vein, but, as stated above under ornati-'^entris, D. ptilchra is not a 

 Leticophenga. 



There is in the collection of the Carnegie Museum still another speci- 

 men of Leucophenga captured by Dr. J. D. Haseman at Bom Fim, 

 Bahia, Brazil, Nov. 20, 1907, and bearing the label, C. Mus. i\cc. No. 

 3441. It is much mutilated, with only the left wing present and even 

 this with the apex missing, so that the course of the costa cannot be 

 ascertained. From its chsetotaxy, I am, however, perfectly convinced 

 that it is a Leucophenga, closely allied to the species from Sapucay. 

 It is larger and more robust than the specimen from Sapucay, but with 

 the same pattern of abdomen, arista with seven rays above and four 

 below, alike in both antennae, the veins of the wing the same as far as 

 can be seen, but the brownish dash at base of wing is more extended, 

 and the whole marginal cell is tinted with light brownish, which ex- 

 tends in a diluted form into the apical portion of the submarginal cell. 



I mention these two specimens above partially described for the 

 sake of others, who may be fortunate in possessing specimens from 

 those regions in perfect condition. 



8. Leucophenga quadrimaculata Walker. 



Drosophila quadrimaculata Walker, Insecta Saundersiana, Vol. I, Diptera, 1856, 



p. 410. 

 Drosophila quadrimaculata Johnson, Proc. Acad. Nat. Sc. Philadelphia, 1895, 



P- 339. and in Insects of New Jersey, 1900, p. 695. 

 Leucophenga quadrimaculata Johnson, Bull. Am. Mus. Nat. Hist., XXXII, 1913, 



p. 88. 



Head yellow; upper occiput concave, black, except its narrowly 

 yellow orbit. Antennae yellow, lightly grayish pollinose, with the 



