356 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io8 



A. spiraeae. In addition to the type female from California there 

 is a male in the U. S. National Museum that was collected in the 

 District of Columbia. 



Agrotnyza nigripes Meigen 



Agromyza nigripes Meigen, Systematische Beschreibung der bekannten euro- 

 paischen zweifliigeligen Insekten, vol. 6, p. 170, 1830. — Hendel, in Lindner, 

 Die Fliegen der palaearktischen Region, fam. 59, p. 137, 1931 (figures of 

 head and wing). 



Agromyza duhitaia Malloch, Ann. Ent. Soc. Amer., vol. 6, p. 311, 1913. 



A relatively common Holarctic species, A. nigripes is rather dis- 

 tinctive in having the frons wider than long and the third antennal 

 segment subangulate (fig. 12). The mesonotum is shining black and 

 bears three or four developed postsutural dorsocentrals. The larvae 

 are grass miners and a series in the Illinois Natural History Survey 

 collection were reared from Triticum aestivum L. at Wooster, Ohio. 

 The species is known from Iowa, Illinois, Michigan, Ohio, New York, 

 Massachusetts, Ontario, and Quebec. 



Agromyza niveipennis Zetterstedt 



Agromyza niveipennis Zetterstedt, Diptera Scandinaviae, vol. 7, p. 2741, 1848. — 

 Hendel, in Lindner, Die Fleigen der palaearktischen Region, fam. 59, p. 

 139, 1931 (figures of head and wing). 



Agromyza cinerascens (Macquart), Melander, Journ. New York Ent. Soc, vol. 

 21, p. 253, 1913 (1 cf, Oroville, Wash.). 



This is a rather distinctive, shining black species with the third 

 antennal segment angulate distally, the head in profile subtriangular, 

 and six rows of acrostichals. It has not been reported previously 

 from North America. I have reared it from leaf mines on the follow- 

 ing grasses in central Washington: Secale cereale L., Hordeum jubatum 

 L,, Triticum aestivum L., and Agropyron repens L. There are other 

 specimens from Utah and Kansas. 



Agromyza pallidiseta Malloch 



Agromyza pallidiseta Malloch, Canadian Ent., vol. 56, p. 192, 1924. 



This species is closely related to A. aristata, but has all bod3'' setae 

 yellowish and the genovertical plates partially darkened (fig. 13). 

 The frons is about as wide as long (fig. 14). Known only from the 

 holotype female in the U. S. National Museum (64299), collected at 

 Rock Creek Park, Washington, D. C. 



Agromyza parvicornis Loew 



Agromyza parvicornis Loew, Berhner Ent. Zeitschr., vol. 13, p. 49, 1869 (Centuria 

 VIII, No. 92). — Melander (part), Journ. New York Ent. Soc, vol. 21, p. 254, 

 1913 (excl. 19, Wisconsin). — Malloch, Ann. Ent. Soc Amer., vol. 6, p. 

 312, 1913 (figures of head and wing). — Phillips, Journ. Agr. Res., vol. 2, p. 

 15, 1915 (figures of leaf mines). 



