1921] Alexander: Japanese Crane-Flies. II 123 
Male—Length, 13 mm.; wing, 16 mm. 
Frontal prolongation of the head dark brown above, paler laterally, 
black ventrally; palpi dark brown. Antennz of the male moderately 
elongated, if bent backward extending a little beyond the wing-root; 
scape and basal two segments of the flagellum reddish yellow; remaining 
flagellar segments brown, the basal enlargement of each segment darker 
to give to the flagellum an indistinctly bicolorous appearance; terminal 
segments uniformly dark brown. Head dark gray pruinose. 
Pronotum dark gray. Mesonotum with the praescutal stripes and 
scutal lobes shiny black, the former confluent or nearly so; median 
area of the scutum, scutellum and postnotum dark gray pruinose. 
Pleura dark, gray pruinose, an indistinct longitudinal stripe paler gray. 
Halteres obscure yellow, the knobs dark brown. Legs with the coxe 
dark ‘brown, gray pruinose, the tips of the posterior coxe pale; 
trochanters obscure yellow; fore femora black with about the basal 
fourth abruptly brownish yellow; middle femora with the apical third 
black; hind femora with a little more than the apical fourth black; 
tibiz obscure brownish yellow, the apical half brown; tarsi brownish 
black. Wings pale yellowish subhyaline, the wing-base and subcostal 
cell conspicuously light yellow; costal cell dark brown, pale at the 
base and apex; stigma dark brown, continued as a slightly paler brown 
seam along the cord to the posterior margin; wing-tip faintly darkened, 
this including the outer halves of cells Re, R; and Rs, and as a very narrow 
seam around the wing-tip to Cm; a faint brown seam at the origin of 
Rs; brown seams along Cu and its branches and vein 2nd A; grayish 
brown clouds in the ends of the Anal cells and as a faint cloud across the 
basal cells, beginning at the origin of Rs; the subhyaline color beyond the 
cord appears as a broad band in the basal half of cells Ro, R3, Rs and all 
of cell 1st Me; very narrow brown seams along the veins beyond the 
cord; veins dark brown, yellow in the yellowish areas. Venation: 
ry joining R213 at its fork; R2 oblique; Rs longer than R3; cell 1s¢ Mz small, 
pentagonal, about as long as cell M4. 
Abdomen obscure yellow, the tergites with three very indistinct 
capillary dark brown lines; a subterminal dark brownish black ring 
occupying segments six to eight, these segments broadly margined with 
obscure yellow; hypopygium yellowish brown. Male hypopygium 
large. Ninth tergite extensive, the median area produced caudad into 
a blunt black median lobe; viewed from beneath this lobe is seen to be 
hollowed out into a hood-shaped structure; dorsal-median area of the 
tergite sunken. Ninth pleurite complete, large; outer pleural appendage 
flattened, angularly bent, provided with a fringe of long yellow bristles; 
inner pleural appendage flattened, heavily chitinized; from the inner 
’ margin of the pleurite juts a small flattened blade, with a powerful 
chitinized spine along the margin. Ninth sternite feebly notched. 
Eighth sternite broad, the caudal margin broadly and very shallowly 
notched, the lateral angles with a sparse fringe of long, pale bristles. 
Habitat: Japan. Holotype, &, Koiwai Farm, near Morioka, 
september 8, 1920 (C. Teranishi). 
