FLIES OF THE TRIBE LESKIINI—JAMES 101 
along suture, yellow in background; tarsi yellowish basally. No 
discoscutellars; 1 apicoscutellar, small, convergent. 
Abdomen with a broad median vitta, broadly interrupted at bases 
of segments, extending from apex of segment 1 to middle of segment 4; 
a pair of large black spots on middle of segment 3 laterally and ap- 
pearing as triangles from either dorsal or ventral aspect, the entire 
figure, if integument were spread out in a plane, being diamond- 
shaped; small brownish connections between lateral markings and 
median vitta; apex of abdomen beyond these spots brownish yellow, 
the apical part of the vitta not very clearly apparent. Third and 
fourth tergites narrowly pollinose at base dorsally as well as ventrally. 
Holotype.—Male, Itaquaquecetuba, Sao Paulo, Brazil, U.S.N.M. No. 
57289. 
The above description was based on the type, the only specimen of 
this species which I have seen. In the original description, the type 
was erroneously stated to be a female; for a possible explanation of 
this, see discussion under Leskiomima tenera (Wiedemann), page 103. 
LESKIOMIMA CINEREA, new species 
Length, 5 mm. Lateral occipital plates blackish on upper half; 
pollen of head whitish with a slightly yellowish cast, that of para- 
frontals not noticeably different from that of rest of head. Haustellum 
1 to 1.25 times head height. Third segment of antenna with infuscated 
area, from outer aspect, extending from apex almost to arista dorsally 
and about halfway ventrally; arista in male entirely black, in female 
with the first segment and the basal half of the third segment, beyond 
its thickened portion, yellow; hairs of arista concolorous with back- 
ground. Palpus pale yellow; one or two stronger ventral setulae near 
apex and a longer one about one-third distance from the apex. Five 
frontals. 
Thorax with humeri, broad apical and lateral margins of scutellum, 
propleura, and mesopleura immediately below anterior spiracles, 
yellow; thoracic pollen cinereous. Hind tarsi black. One discoscu- 
tellar; no apicoscutellars. 
Abdomen orange-yellow; a subquadrate brownish median spot at 
apex of segment 1; in the female, this is followed by indefinitely 
bordered brownish areas forming a median vitta that reaches to apex 
of segment 3, briefly interrupted at bases of segments, and expanding 
on segments 2 and 3 into complete posterior margins dorsally; in the 
male these areas are more reduced and form median triangles on about 
the apical two-thirds each of segments 2 and 3 and round spate at the 
bases of the marginal bristles of segment 3. 
Types.—Holotype, male, Orlando, Fla., January 1930 (D. J. Nichol- 
son), on L’rechtites fagmnied ales U.S.N.M. No. 57290. Allotype, female, 
Orlando, Fla., January 15, 1930 (Nicholson), on 7'riphasia trifolia. 
