814 
J. E. MALLOCH. 
— Arista tapering, almost bare, the pubescence never distinctly longer than, 
the basal diameter of the arista; cheek distinct, though not broad. 
19, 'prolifica n. sp. 
21. Cheek produced into a distinct point anteriorly.. .... 20. anguliceps n. sp 
— Cheek not angularly produced anteriorly.22. 
22. Mesonotum with three pairs of dorso-central bristles.21. aliena n. sp. 
— Mesonotum with two pairs of dorso-central bristles.23. 
23. Fore tibia with a distinct setula on the posterior side at about the middle. . 24. 
— Fore tibia without such bristle. 25. 
24. Halteres entirely black... 22. setigera n. sp. 
— Halteres black, the apical part of the knob pale yellow. 23. variihalterata n. sp*. 
25. Subopaque black species ; . frons buccate; last section of fifth vein subequal 
with last section.. 24. Sauteri n. sp. 
— Shining black species ; frons not buccate.26. 
26. Frontal triangle subshining ; penultimate section of fourth vein subequal 
with the preceding section.25. subfusca n. sp. 
— Frontal triangle glossy; penultimate section of fourth vein shorter than pre 
ceding section.. . .27. 
27. Small species, 1 — 1*75 mm...26. atomella n. sp. 
— Larger species, 2*5—2-75 mm.27. nigrisquama n. sp. 
1. Agromyza pusilla Meigen. 
Agromyza 'pusilla Meigen, Syst. Beschreib., vol. 6, 1830, p. 185, species 60. 
Specimens of this widely distributed species are amongst the material 
before me from the following localities, Tainan, Takao and Taihoku. 
Nine specimens in all. 
2. Agromyza subpusilla n. sp. 
Male: Yellow, subopaque. Head and all its parts, except the vertex 
and back, as well as the ocellar region, which are blackish, yellow. Meso¬ 
notum opaque, grayish-black on disc, the marking resembling that on the 
thorax of melampyga Loew, but the posterior yellow excisions not so clearly 
defined; the central one represented in type by a triangular mark; pleuræ 
with a slight darkening above fore coxa, and a large blackish-gray mark 
between mid and hind coxæ ; scutellum blackened on each side at base ; 
postnotum gray, yellow just below scutellum. Abdomen brownish, the 
posterior margins of all segments yellow. Legs yellow, tibiæ and tarsi 
slightly browned. Wings clear, veins black-brown. Squamæ yellow. Hal¬ 
teres yellow. 
Orbits with four pairs of bristles, which are rather weak, and decrease 
