Kahl: The Dipterous Genus Leucophenga Mik. 377 



to designate it as distinct, until more material may decide whether 

 they actually are distinct or identical. It seems that the two reclinate 

 fronto-orbital and the inner veritcal bristles in hasemani are more 

 equidistant, whereas in maculosa the upper reclinate is distinctly 

 nearer to the inner vertical than to the lower reclinate; the brown 

 basal wing-spot in hasemani is angulated outwardly, whereas in 

 maculosa the exterior outline of this spot is straight; the spot at apex 

 of second vein in hasemani is oval along the wing and its brown color 

 borders the second vein, in the submarginal cell, to its apex, whereas 

 in maculosa this spot is round with the brown color crossing the second 

 vein at some distance from its apex into the submarginal cell: the 

 distinct infuscation of the apical portion of third vein in hasemani is 

 missing in the specimens of maculosa before me. Coquillett would 

 not have failed to mention this infuscation if it had existed in the type. 

 The condition of the abdomen of hasemani is such, that a fair compar- 

 ison with the spotted abdomen of maculosa is out of the question. 



4. Leucophenga maculosa Coquillett. 



Drosophila maculosa Coquillett, Proc. Acad. Nat. Sc. Philadelphia, 1895, p. 317. 

 Drosophila maculosa Johnson, Entom. News, Philadelphia, 1904, p. 162. 

 Drosophila maculosa Johnson, Bull. Am. Mus. Nat. Hist., XXXII, 1913, p. 88. 



To Coquillett's description the following notes may be added, taken 

 from specimens which the writer most certainly considers identical 

 with maculosa: 



Palpi much enlarged, compressed, yellow. Wings as in L. hasemani, but the spot 

 on apex of second vein is round and does not definitely fill out the extreme apex of 

 the marginal cell. Third vein yellow, not infuscated on apex, as in L. hasemani . 

 The chaetotaxy is the same as in hasemani, but the upper reclinate bristle is nearer 

 to the inner vertical than to the lower reclinate and placed higher up than the lower 

 ocellus. Thorax and scutellum rather reddish yellow, the latter with apex pale. 

 The apical scutellar bristles are decussate, the lateral pair divergent. Abdomen 

 may be very slightly, if at all, shining in life; the small first segment'^ yellow, the 



'5 What Coquillett calls "first segment" of abdomen the writer has, for reasons 

 given above, preferred to designate as first and second segments, and Coquillett's 

 second corresponds with the writer's third, etc. 



second segment yellow, except a small black spot above at each anterior corner, the 

 three or four following segments, as seen from above, each with a pair of yellowish 

 spots at base, larger and somewhat triangular on the third, smaller and rounded on 

 the two or three following segments, and besides these yellow spots, the same three 

 or four segments have each a large yellow spot near the lateral margins, but not 

 seen from above. Compare with hasemani. 



