FORMOSAN AGROMYZIDAE. 
811 
anterior pair, and the pair of bristles between the posterior pair, weak; 
discal setulæ, numerous, but not strong; apical pair of scutellar bristles 
long, the basal pair weak. Abdomen with short surface hairs. Legs with 
short hairs, the ventral surface of the femora with the hairs stronger; a 
distinct hair at apex of the mid trochanter, which is directed alongside of 
the femur. Wing as fig. 18. 
Length 1 — 1*5 mm. 
Locality: Takao, April 10, 1907. 
Paratypes and allotype: Same locality, 300 m., March 31, 1907. 
Female: Similar to the male, except in having the antennæ smaller, 
.and in being rather larger over all. 
Phyllomyza nudipalpis n. sp. 
Male: Black. Fore tibiae and all tarsi yellowish; mid pair and bases 
of hind pair, brownish-yellow. Mesonotum grayish-brown pollinose ; pleuræ, 
with a shining black area in front of mid coxæ, the rest grayish pollinose. 
Abdomen subopaque. Palpi and halteres black. Squamae grayish, the fringe 
dark. 
The upper 3 pairs of orbital bristles directed outwards over the eye, 
the lower 2 pairs directed inwards ; orbits distinct, slightly shining, the 
central stripe velvety-black; orbits with a few weak hairs in addition to 
the bristles; cruciate setulæ weak; profile as fig. 3; arista placed very 
near to the anterior upper angle of third joint, hair-like, with very slight 
pubescence; proboscis very much shorter than the much enlarged, bare 
palpi. Mesonotum with the same bristles as luteipalpis. Legs with short 
surface hairs. Wings as fig. 16. 
Length: 2 mm. 
Locality: Takao, 300 m., April 18,-1907. One male. 
Phyllomyza dilatata n. sp. 
Male: Orbits and frontal triangle shining black, center stripe deep 
black, opaque; antennæ, palpi and proboscis black. Mesonotum shining, 
black, with but slight signs of pollinosity; pleuræ glossy, with only slight 
pollinosity below wing base and posteriorly. Abdomen subopaque, black. 
Legs yellow, coxæ, and femora, except the extreme bases and apices, black- 
brown. Squamæ brownish, fringe brown. Halteres reddish yellow. Wings 
clear, veins brown. 
Orbital bristles similar to those of nudipalpis , but much stronger, 
the second lowest pair much stronger than the lowest pair; the cruciate 
