108 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



end of first vein and at tliree-seventlis from apex of discal cell; last 

 section of fourth vein over 4 times as long as penultimate section; 

 last section of fifth vein very sliglitly shorter than penultimate 

 section; last sections of veins 3 and 4 distinctly divergent. 



Length, 2 mm. 



Type-sj^ecimen. — Salt Lake, Utah, August 4, 1914. Reared from 

 larvae mining in Sonchus asper, by P. H. Timberlake. Timberlake's 

 No. 915a. 



Type.— Cat. No. 19394, U.S.N.M. 



This species belongs to the group which has the anterior angle of 

 cheeks produced in both sexes and the vibrissae in the form of a fas- 

 ciculus in the male. Coniceps is closely allied to affinis Malloch, from 

 which it may be separated by the less strongly bristled frons, the 

 narrow orbits, conspicuously produced mouth margin, and different 

 venation. 



Notes on names of Agromyza species can be found in a paper deal- 

 ing with Formosan species of Agromyzidae,* and in one on North 

 American species. 



I inadvertently erred in leaving the name atrata in my table of 

 species in Agromyza; this should read nigrita as in the text. Also I 

 used the species name niveipennis, which is preempted by niveipennis 

 Zetterstedt; I propose to change the name of my species to vitri- 

 nervis, new name. I also overlooked Strobl and Czerny's name 

 infumata in this genus and made a homonym in describing a North 

 American species.^ This species may be known by the new name 

 suhinfumata. 



EXPLANATION OF PLATE 36. 



Fig. 1, Agromyza riparia, head in profile. 



2, Agromyza riparia, wing. 



3, Agromyza subvirens, head in profile. 



4, Agromyza subvirens, wing. 



5, Agromyza virens, head in profile. 



6, Agromyza virens, wing. 



7, Agromyza gibsoni, head in profile. 



8, Agromyza gibsoni, wing. 



9, Agromyza gibsoni, apex of pupa. 



10, Agromyza gibsoni, apex of posterior and spiracle of pupa. 



11, Agromyza phaseoli, posterior and spiracle of pupa. 



• Ann. Nat. Mus. Hung., vol. 12, 1914, pp. 30&-336. 

 2 Can. Ent., 1915, p. 15. 



