AGROMYZID LEAF MINERS — FRICK 355 



is high and narrow and the arista is plumose (fig. 8). This species is 

 rather distinctive in having the anepisternum and tergites bordered 

 with yellow and the mesonotum heavily dull gray pollinose. The two 

 known specimens are from Barro Colorado Island, Panama Canal 

 Zone. 



Agromyza diversa Johnson 



Agromyza diversa Johnson, Occ. Pap. Boston Soc. Nat. Hist., vol. 5, p. 26, 1922. — 

 Shewell. Canadian Ent., vol. 85, p. 462, 1953. 



This species belongs to Agromyza sens. str. even though the body, 

 including the scutellum, is predominately yellow. A. diversa diflPers 

 from the very similar A. ferruginosa van der Wulp of Europe in having 

 the head mostly brown. I have seen specimens from Iowa, Illinois, 

 Massachusetts, Vermont, and Ontario. 



Agromyza frosti Frick 



Agromyza schmidti Frost (not Aldrich, 1929), Ann. Ent. Soc. Amer., vol. 29, 



p. 302, 1936. 

 Agromyza frosH Frick, Univ. California Publ. Ent., vol. 8, p. 373, 1952. 



The male holotype is in the U. S. National Museum (No. 62966). 

 There are three paratypes in the S. W. Frost collection. The head 

 has the antenna placed well below the middle of the head and the 

 eye is ovoid (fig. 9). This is a species of moderate size (2 mm. in 

 wing length) that has two developed dorsoceutrals, the mesonotum 

 subshining and without metallic sheen, and the anepisternum entirely 

 dark. The type series is from La Caja, Costa Rica, and was reared 

 from the stems of an unidentified plant. 



Agromyza inaeqiialis Malloch 



Agromyza inaequalis Malloch, Proc. Ent. Soc. Washington, vol. 16, p. 89, 1914 



(figs, of head and wing). 

 Agromyza iridescens Frost, Ann. Ent. Soc. Amer., vol. 29, p. 303, 1936. 



This species has the upper-orbital setae unequal in length, the 

 ventral being the longer and stronger (fig. 10), and a bright green 

 sheen to the mesonotum and abdomen. The larvae make blotch 

 mines in the leaves of Vigna repens Baker, Phaseolus vulgaris L., 

 and P. limensis Macfad. I have seen specimens from Puerto Rico, 

 Cuba, Panama Canal Zone, and Venezuela, 



Agromyza isolata Malloch 



Agromyza isolata Malloch, Ann. Ent. Soc. Amer., vol. 6, p. 306, 1913. 



This species belongs with those species having four developed dorso- 

 ceutrals, one being presutural. The calypter has the fringe brown 

 and there are two medial setae on the mid tibia. This last character 

 and the high, narrow eye (fig. 11) serve to separate A. isolata from 



