826 
J. R. MALLOCH. 
of discal cell than in the latter, and the outer cross vein fully as long as the- 
section of fourth vein anterior to it. 
Allotype : Tainan, October. 
Paratypes : Two females, Tainan, February. 
18. Agromyza piliseta n. sp. 
Male: Glossy grëenish black. Frontal triangle and orbits glossy black, 
center stripe opaque; apex of proboscis brown. Mesonotum with slight 
indications of grayish dusting. Abdomen with a distinct violaceous tinge 
on the basal half of the dorsum. Legs glossy black. Wings clear, veins dis¬ 
tinct, black. Squarti æ whitish yellow, fringe concolorous. 
Frons about one third the head width, the sides slightly convergent 
anteriorly; orbits distinct, their surfaces with slight hairs in addition to 
the 4 pairs of bristles, the latter only of moderate strength, and decreasing 
slightly anteriorly; triangle narrow, acute, generally reaching to beyond 
middle of frons ; cheek linear, about one tenth the height of the eye, mar¬ 
ginal hairs distinct, vibrissa weakly differentiated. Mesonotum with 2 pairs 
of dorso- centrals. Abdomen ovate ; hypopygium normal. Mid tibia with 
the posterior bristles distinct. Inner cross vein at middle of discal cell, 
or very slightly on either side of the middle; last section of fourth vein 
about 8 times as long as penultimate section; last section of fifth about 
two thirds as long as penultimate section; veins three and four distinctly 
divergent on their apical .sections. 
Length : 2—8 mm. 
Female: Similar to the male, except that it is rather larger and more- 
robust, besides having the abdomen more greenish, and with less distinct 
violaceous color on the dorsum. 
Type: Takao, October 26, 1907. 
Allotype: Tainan, April, 1912. 
Paratypes : Takao, Tainan, and Kosempo, 4 specimens. 
19. Agromyza prolifica n. sp. 
This species is very similar to the foregoing and may be separated 
from it by the following characters : 
The antennæ are slightly larger; the arista is without the distinct 
pubescence, and appears much thinner and tapering; the cheek is about 
one sixth the eye height, the marginal hairs are very weak, and the vibrissa 
is well differentiated; the inner cross vein is at beyond the middle of the 
discal cell; the last section of the fourth vein is 4 times as long as the- 
