Vol. XXvl ENTOMOLOGTCAIv NEWS. 313 



line subtriangular ; hypopygium very small; surface very distinctly 

 hairy. 



Legs normal, the posterior mid-tibial bristles absent. 



Wings with costa to fourth vein; inner cross-vein at distinctly 

 beyond end of first vein and at three-fourths from base of discal cell ; 

 outer cross-vein at about half its own length from inner ; last section 

 of fifth vein subequal with penultimate section; veins 3 and 4 very 

 distinctly divergent. Length, 2.5 mm. 



Locality: Albany, New York, April 28. 1913, reared from 

 Taraxacum densleonis, dandelion. Received from Dr. E. P. 

 Felt, New York State Entomologist. 



Three males and one female reared by Mr. D. B. Young, 

 after whom I take pleasure in naming the species. 



7^ype and allotype in New York State collection. Paratypes 

 in Illinois State Lab. Nat. Hist, collection. 



Since submitting this paper for publication, the writer has 

 taken a single specimen of this species at St. Joseph, Illinois. 

 May 17, 1914. 



This species will run down to zvebsteri Malloch in my synop- 

 tic table, but may readily be separated by the much less strongly 

 bristled orbits and the produced mouth-margin. The female of 

 this species may be mistaken for one of the group which has 

 the mouth-margin produced and the male with a conspicuous 

 group of hairs on the vibrissal angle, but none of the species 

 described in that group have more than two pairs of dorso- 

 central bristles. One specimen of yoiingi has four pairs of 

 dorso-centrals in the series before me, but this is abnormal, as 

 in other respects it is identical with the type. The female has 

 the orbits much less hairy, the orbital bristles much more dis- 

 tinct (3), and the mouth margin very much produced. 



Agromyza dubitata Malloch. 



In my paper in the Atuials, I inadvertently left the name 

 calif orniensis as that of the species with which I compared 

 dubitata. This was due to the fact that I considered, at the 

 time I wrote that description, that the specimen mentioned in 

 the last paragraph dealing with setosa Loew was a distinct 

 species and had given to it the name calif orniensis. I subse- 

 quently decided to allow this specimen to stand as setosa, but 



