822 J. R. MALLOCH. 



proboscis brown at apex. S(|uanue <j;ray, margins and tbe fringe l)lack-brown. 

 Abdomen Intnvn-black, becoming paler towaids tbe 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 orljits, the fourth, anterior, pair very weak and hair-like; 

 cintenna' normal in size, dorsal bristle on second joint very small, third joint 

 rounded : arista slender, almost entirely l)are. 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 setulae. 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 tw^o thirds as long as the penultimate section; veins 3 and 4 suliparallel 

 on their last sections. 



Length : 2*75 mm. 



Locality; Koshun, October, 1908. 



This species has nuich the habitus of the species belonging to the 

 section with the halteres black, the stout l)uild and the ch?etotaxy lieing 

 very similar to that of those species, though the bristles lietween the posterior 

 dorso-centrals are present in kosliunensis. 



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 kosliunensis 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 setulte much less nu- 

 merous and stronger than in kosliunensis ; abdomen broadly ovate as in that 

 species ; legs rather hairy, the bristles on the mid ti]3ia 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 2i-> times 



