21,4 Alexander: Little-known Tipulide (Diptera) 883 
thirds Rs; R,+-, short, about equal to the distal section of ‘oe 
much shorter than the basal deflection of Cu, ; cell M, very short- 
petiolate; a slight fusion of M, and Cu,. 
Abdomen shiny black, the caudal margins of tergites 2, 3, 
and 4 rather narrowly but conspicuously yellow. Hypopygium 
comparatively large and complex, black, the ninth segment 
elongate-cylindrical and tilted at an angle to the remainder of 
the abdomen. 
LUZON, Mountain Province, Benguet, Pauai (Haight’s place), 
altitude about 2,400 meters (Baker). 
Pselliophora bicinctifer sp. nov. © 
General coloration black; antennal flagellum with only nine 
segments; mesonotal prescutum obscure yellow with three 
brownish black stripes; halteres yellow; tibize dark brown with 
a basal and a subterminal yellowish ring; wings pale grayish 
yellow, the cells beyond the cord dark brown; abdomen deep 
rufous, the tergites trilineate with black, the sternites with only 
the lateral margins narrowly darkened. 
Female.—Length, about 17 millimeters; wing, 15. 
Frontal prolongation of the head dark brownish black, clothed 
with conspicuous golden yellow and black bristles interspersed ; 
palpi brown, the third segment pale at base and apex; terminal 
segment black beyond the base. Antennz with the first seg- 
ment brownish black, the remainder bright orange yellow; 
flagellum with only nine segments, the first segment shorter 
than the second and third combined ; Segments 2 to 5 narrow 
at base, the proximal face dilated; terminal segments flattened, 
disklike, greatly crowded. Head dark brownish black. 
Pronotum dark brownish black. Mesonotal prescutum ob- 
secure yellow, with three conspicuous brownish black stripes, 
the median stripe narrowed behind but attaining the suture; 
scutal lobes with brownish black centers; median area in front 
with a triangular shiny area immediately behind the suture; 
scutellum brown; postnotum dark brown. Pleura dark velvety 
brownish black. Halteres light yellow. Legs with the coxe 
velvety brownish black; trochanters brownish black, the tips 
fading into reddish; femora yellow, the tips broadly and con- 
spicuously blackened; tibize yellow, the tips narrowly dark 
brown; a conspicuous dark brown annulus occupies the mid- 
center of each tibia, restricting the ground color to a narrow 
basal and a slightly broader subapical yellow ring; metatarsi 
yellow, the tips black; remainder of tarsi black; inner face of 
claws microscopically denticulate. Wings with the cells proxi- 
