326 J. K. MALLOCH. 



of discal cell than in the latter, and the outer cross vein fully as Ions; as the- 

 section of fourth vein anterior to it. 



Allotype : Tainan, October. 



Paratypes : Two females, Tainan, February. 



.•,. ^ - y /^' 1^^ 



IS. Agromyza piliseta n. sp. ^--''^ ' 



'^-■■^^--. 

 Male: Glossy greenish 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. Squamae whitish yellow, fringe concolorous. 



Frons about one third the head width, the sides slightly convergent 

 anteriorly ; orljits 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 3 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—3 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 20, 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 l)y the following characters : 



The antennae 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 cro-!s vein is at beyond the middle of the 

 discal cell; the last section of the fourth vein is 4 times as long as the- 



