342 Dr. C. P. Alexander on 
seymeuts light yellowish, the flagellar segments dark brown; 
general coloration of the hody black, the sides of the meso- 
notal prescutum reddish brown; halteres black; legs with 
the coxz black, the apical tarsal segments pale; wings 
subhyaline with a heavy dark brown pattern; vein R,,3 
straight, perpendicular to the sector; basal deflection of 
Cu, at about mid-length of cell lst Mj. 
Male.—Length (excluding rostrum) 68 mm.; wing 
4°5 mm. ; rostrum alone 6 mm. 
Rostrum elongate, in the male sex at least, nearly as long 
as the body, the extreme base brownish black, the remainder 
of the organ very pale yellow. Antenne with the enlarged 
basal segments conspicuously light yellow, the flagellum 
dark brown, the distal segments provided with very long 
hairs. Head dark brownish black, possibly discoloured, 
paler adjoining the inner margin of the eye. 
Mesonotal preescutum dark reddish brown, the lateral 
margins very narrowly paler, the dorso-median area darker ; 
remainder of the mesonotum black. Pleura black. Halteres 
black. Legs with the coxe black; trochanters pale testa- 
ceous yellow ; femora brown, paler at the base ; tibiz and 
tarsi darker brown, the apical tarsal segments pale whitish 
brown, the claws reddish. Wings greyish subhyaline, with 
a heavy dark pattern, arranged as follows: the single dark 
brown spot is located at Sc., immediately above the origin of 
Rs; less intense brown spots on R,,, continued along the 
cord to the fork of Cu; a similar but narrower seam at the 
outer end of cell ist M,; a very small cloud at the origin of 
Rs ; a large blotch at the base of M; large spots in the 
cells, as follows: two in cell R, the cutermost much 
the larger, subequal in size to the seam on R,,3; four equi- 
distant marks in cell M, each of these divided into two 
unequal parts by a longitudinal obliterative streak in this’ 
cell ; two spots in cell R;, the proximal one larger; a large 
blotch at the end of vein 2nd A, entirely traversing the cell; 
a small blotch in the middle of cell lst A; brown clouds at 
the ends of veins M3, Cu,, and Cu, ; the apex of the wing in 
cells Az, R;, and M, milky white; the dark areas on the 
wing are produced by the concentration of the microscopic 
setzee which cover the membrane at these points; vein R, 
yellow, the remaining veins dark brown. Venation: Sc 
ending just beyond the origin of Rs, Sc, being almost 
exactly at this point; Rs evenly and gently arcuate ; 
R,,3 perfectly straight and perpendicular to the end of Rs, 
so that cell R, is almost a triangle ; cell lst M, closed ; 
