822 
J. R. MALLOCH. 
proboscis brown at apex. Squamæ gray, margins and the fringe black-brown. 
Abdomen brown-black, becoming paler towards the apex. Legs entirely 
black. Wings clear, veins black, very fine, but distinct. Halteres brownish 
on stem and outer side of the knob, the greater part of the knob creamy 
white. 
Frons one third the width of the head ; three pairs of very strong- 
bristles on the orbits, the fourth, anterior, pair very weak and hair-like; 
antennæ normal in size, dorsal bristle on second joint very small, third joint 
rounded ; arista slender, almost entirely bare, as long as from its base to the 
upper orbital bristle ; cheek short, barely twice as long as its greatest 
height, and at that part barely one eighth as high as eye; marginal bristles 
increasing in size anteriorly, vibrissa strong and well differentiated. Meso- 
notum with 2 pairs of strong dorso-centrals ; the two bristles between the 
posterior pair of dorso-centrals strong ; disc very thickly covered with very 
short setulæ. Mid tibia with the bristles on the posterior surface strong. 
Wing with the inner cross vein at one third from base of discal cell and well 
in front of the end of first vein ; last section of fourth vein about one and 
two third times the length of the penultimate section ; last section of fifth 
vein two thirds as long as the penultimate section ; veins 8 and 4 subparallel 
on their last sections. 
Length: 2*75 mm. 
Locality: Koshun, October, 1908. 
This species has much the habitus of the species belonging to the 
section with the halteres black, the stout build and the chætotaxy being- 
very similar to that of those species, though the bristles between the posterior 
dorso-centrals are present in koshunensis. 
14. Agromyza obesa n. sp. 
Male: Black, shining. Differs in color from the previous species in 
having the abdomen entirely black, the tarsi of all the legs yellowish, the 
halteres yellow with white knob, and the wing veins brown. 
Differs from koshunensis as follows: Orbits with three bristles which 
are subequal in size ; arista with short but distinct pubescence ; cheek linear 
throughout, almost indistinguishable ; mesonotum with three distinct 
dorso-centrals, the size decreasing anteriorly, discal setulæ much less nu¬ 
merous and stronger than in koshunensis; abdomen broadly ovate as in that 
species; legs rather hairy, the bristles on the mid tibia not so strong; the 
inner cross vein at slightly before the middle of the discal cell and at just 
below the end of the first vein ; the last section of fourth vein is M/ 2 times 
