338 Annals Entomological Society of America [Vol. XII, 



deflection of Cui just before the fork of M ; 2nd anal vein sinuous, at its 

 tip bent rather strongly toward the first anal. 



Abdomen dark brownish black. Male hypopygium with the pleurites 

 rather stovit, covered with sparse prominent tubercles that bear coarse 

 yellow setse, which are longest at the tips of the pleurites; pleural 

 appendages two, the outer appendage fleshy, the outer face with an 

 abundant short brownish, appressed pubescence, arranged in trans- 

 verse rows; inner appendage narrowed and chitinized at the tip, the 

 inner face with about nine or ten stout setae. Penis-guard terminating 

 in two subparallel slender black spines; two pairs of gonapophyses, the 

 inner pair simple and ending in an acute blackened point; outer gona- 

 pophyses bifid, the lateral arm much longer and more slender than the 

 proximal arm. Eighth sternite with a short, flattened, subspatulate 

 median lobe. 



Habitat: Japan. 



Holotype, d", Meguro, Tokio, April 2, 1919 (R. Takahashi). 



Allotopotype, 9 , April 7, 1919. 



Paratopotypes, 19 d^ 9 , March 25-April 25, 1919; paratype, 

 9 , May 29, 1919; 6 d^ 9 , October 2-21, 1919. 



The autumnal specimens are much smaller than the vernal 

 material, but show no other differences. 



It is with great pleasure that this interesting- fly is dedicated 

 to its discoverer, Mr. Ryoichi Takahashi. 



Erioptera Meigen. 



Erioptera bifurcata sp. n. 



General coloration gray, the mesonotum with three brown stripes; 

 legs black with whitish scale-like hairs; wings yellowish, vein Sc yellow; 

 cell 1st Mi open; anal veins divergent. 



Male — Length, 5-5.5 mm.; wing, G. 1-7.1 mm. 



Rostrum black, densely gray pruinose; palpi dark brown. Antennae 

 black, the segments ovaU covered with a dense white pubescence, the 

 verticils short, barely projecting beyond the pubescence. Head broad, 

 light gray, the eyes widely separated above, the ventro-caudal angles 

 almost contiguous beneath. 



Pronotum light gray. Mesonotal praescutur gray with three 

 brown stripes, the median stripe broad, slightly ^tricted by the 

 conspicuous, elongate pseudosutural foveae, indistinctly bisected by a 

 pale median line; tuberculate pits small, very wi'^f^lv separated, lying 

 slightly anterior to the level of the pseudosutural • f^utum gray, 



the lobes indistinctly marked with brown; remainder ot tne mcsonotum 

 gray. Pleura clear light gray. Halteres light yellow, the extreme base 

 dark. Legs with the coxae and trochanters black, gray pruinose; 

 remainder of the legs black, densely covered with flattened whitish, 

 scale-like hairs. Wings with a faint yellow tinge, the base of the wing 



