118 Annals Entomological Society of America  [Vol. XIV, 
Pleura brown, very sparsely pruinose. MHalteres pale yellow. Legs 
with the cox and trochanters obscure yellow; femora pale brown with 
yellow appressed sete; tarsi brown. Wings pale gray, the stigma 
brown; veins pale brown; cells with an abundant pubescence. Venation: 
Cell 1st Mz open by the atrophy of the outer deflection of M3; Anal 
veins convergent, the outer half of the 2nd Anal vein bent towards 
the 1st Anal. 
Abdomen dark brown, the genital segment brighter; valves of the 
Ovipositor horn-color. Male hypopygium very similar to that of 
‘O. takahashii, but the outer gonapophyses simple, conical, there being 
only six points surrounding the genital field. 
Habitats’ Japan. Holotype, o, "Giru, October We 1920 
(K. Takeuchi). Allotopotype, @, October 10, 1920. 
This interesting species is named in honor of its collector, 
Mr. K. Takeuchi, to whom I am indebted for much valuable 
material. 
Gonomyia Meigen. 
Gonomyia (Ptilostena) teranishii sp. n. 
General coloration light gray; mesonotal praescutum with two 
narrow brown lines; pleura yellow, the dorsal pleurites brown; legs 
yellow; wings yellowish gray, the costal region yellowish; brown spots 
at arculus; origin of Rs; along the cord; tips of the radial veins and near 
the tip of vein 2nd A; Sc; about equal to Re43; Rs strongly recurved at 
its tip; abdominal tergites dark brown, the caudal margins of the 
segments very narrowly grayish. 
Female—Length, 7.2 mm.; wing, 6 mm. 
Rostrum and palpi dark brown. Antenne with the first scapal 
segment light gray pruinose; second segment light yellow; flagellum 
dark brown, the segments oval. Head brown, the front and anterior 
part of the vertex light gray pruinose. 
Pronotum dark brown, obscure yellow laterally. Mesonotal 
praescutum dark brown, gray pruinose, on either side of the broad 
median gray line a narrow brown line extending to the suture; humeral 
angles and lateral margins obscure yellow; scutum light gray, the 
centers of the lobes brown; scutellum and postnotum dark, gray pruinose. 
Pleura light yellow, the dorsal half dark brown, deepest anteriorly. 
Halteres obscure yellow, the knobs dark brown. Legs with the cox 
and trochanters light yellow; remainder of the legs yellow, the terminal 
tarsal segments brown. Wings yellowish gray, the costal and sub- 
costal cells clearer yellow; brown spots at the arculus; stigma; along 
the cord; basal deflection of Cm; tips of veins Re, R3; and near the tip of 
the 2nd Anal vein; extreme wing-tip cream-color, preceded by a faint 
brown suffusion; veins brown, C and Sc more yellow. Venation: 
Sc, extending to just beyond the origin of Rs, Scy far from the tip of 
Sc, the latter alone about equal to Roi3; Rs very strongly angulated 
