FLIES OF THE TRIBE LESKIINI—JAMES 95 
squama, Hind tarsus two-thirds as long as its tibia. Cell R; narrowly 
open; vein R, with setulae approximately evenly spaced and extending 
to its apex. 
Chaetotaxy.—Postocellars slightly divergent; outer verticals strong, 
0.8 as long as inner verticals; ocellars weak; two proclinate and two 
reclinate frontoorbitals, almost in a line with the frontals; two strong 
frontals, anterior one below base of antennae. Three feebly developed, 
yet distinct, presutural acrosticals; three presutural dorsocentrals; 
two humerals; two lateroscutellars; no apicoscutellars; one disco-’ 
scutellar placed far back and approaching position of an apicoscutellar ; 
two small bristles and several fine hairs in a pteropleural tuft; two 
hypopleurals; two small bristles and several hairs laterally on the 
prosternum. Second abdominal segment with strong median mar- 
ginals. 
PROLESKIOMIMA FRONTALIS Townsend 
Proleskionvima frontalis TOWNSEND, Rev. Ent., vol. 4, p. 396, 1934. 
Length, 5.5 mm. Head with ground color of parafrontals and of 
occiput above level of lower eye margins black, of frontalia orange, 
otherwise yellow; densely covered with pollen which is for the most 
part whitish, that of frontalia, however, golden, and that of vertex and 
upperpart of occiput brownish yellow; parafrontals with scattered 
black hairs ending opposite anterior frontals; a few minute black setu- 
lae around each vibrissa. Antenna yellow, third segment brownish; 
second segment at apex above and third on upper surface with black 
setulae. Palpus with a few black hairs below, otherwise with short 
black setulae. Proboscis brownish, labella yellow, erect hairs of 
haustellum black, those of labella brownish. Postocular hairs black 
above, whitish on lower third; occipital vestiture, except a few hairs on 
each side above, whitish. 
Ground color of mesonotum and scutellum blackish, of pleura yel- 
lowish, becoming brownish on pteropleura and metapleura; pollen 
whitish on pleura, becoming light golden on mesopleura and ptero- 
pleura, and brownish yellow on mesonotum; mesonotal vittae broad, 
the inner in width two to three times diameter of a trichopore of a 
dorsocentral bristle. Coxae and trochanters yellow; hind femur and 
tibia yellow, becoming brownish apically; hind tarsus blackish, the 
segments becoming yellow toward their apices. Hairs of mesonotum, 
scutellum, coxae, and hing legs black, moderately dense ; those of pleura 
of same color, but sparse. Wing lightly infuscated ; squamae whitish ; 
halteres yellow. 
Abdomen mainly reddish yellow; segment 1 narrowly brownish 
toward median line dorsally ; segments 2 to 4 largely blackish in ground 
color on dorsal surface of tergites, second and third each with a broad 
