144 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



I have before me the type-specimens of Fitch's species and they 

 agree in every particular with the European specimens. The species 

 lacteipennis Fallen (Agromyza) is congeneric with ohscurella and as 

 this species is the type of Lioy's genus Anisoneura that genus becomes 

 a synonym of Meoneura. Becker described the genus Psalidotus 

 with P. primus as type ^ and in 1905 Becker and Bezzi ^ gave this 

 species as a synonym of ohscurella, making the genera synonymous. 

 Becker's figure gives only a single bristle on the mouth margin and 

 he does not mention the diagonal row on the cheek so prominent in 

 ohscurella, but his description fits otherwise and probably he over- 

 looked this feature. 



The specific synonyms cited are, 1 believe, correct, though I have 

 not material at hand for comparison. 



The localities for specimens in collection are New York (Fitch's 

 types, four specimens and pupal cases), reared from wheat, and two 

 specimens — Cambridge, Massachusetts (Burgess?). The European 

 specimens are from Holland and were identified by de Meijere. I 

 have seen one specimen from Boston, Massachusetts (C. W. Johnson). 



MEONEURA LACTEIPENNIS Fallen. 



Plate 4, fig. 2; plate 6, fig. 26. 



Agromyza lacteipennis Fallen, Dipt. Suec. Agromyza, 1823, 4.4. 

 Anisoneura lacteipennis (Fallen) Lioy, Atti. Inst. Veneto, ser. 3, vol. 10, 1864, 

 p. 1314. 



Male and female. — Similar in coloration to the foregoing, but con- 

 siderably smaller. In the coloration of the frons I find that the 

 females have it more distinctly yellow than the males, though my 

 series is not large enough to allow one to form a definite opinion as to 

 whether this is the rule or not. The fore femur has a row of distinct 

 hair-like bristles on the postero-ventral surface, but the very long 

 bristle present in vagans is not noticeable in this species. The other 

 characters of the species are almost identical. Costa less distinctly 

 spmose at base than in ohscurella. 



Locahties of specimens examined: One specimen, Saldovia, Alaska 

 (Harriman Alaska Expedition, Kincaid) ; two specimens, Kaslo, and 

 two specimens, London HiU Mine, Bear Lake, British Columbia (R. P. 

 Currie). 



Genus HEMEROMYIA Coquillett. 

 Hemeromyia Coquillett, Joum. N. Y. Ent. Soc, vol. 10, 1902, p. 190. 



This genus was erected for the reception of a single species, ohscura 

 Coquillett. The postvertical bristles in the type are very small and 

 slightly divergent, but, owing to the presence of a pair of bristles on 

 the anterior margin of frons and the strong mouth-marginal bristles, 



1 Mitth. Zool. Mus. Berlin, vol. 2, pt. 3, 1903, p. 192. 2 Kat. d. Palaar. Dipt., vol . 4, p. 239. 



