392 PROCEEDINGS OF THE NATIONAL MUSEUM vol. los 



The larvae mine the leaves of the following malvaceous plants: 

 Malva rotundifolia L., Abutilon theophrasti Medic, Althaea sp., 

 Malvastrum coromandelianum L., and Sida spinosa L. The species 

 has been collected in scattered locations throughout the United States 

 and from the Panama Canal Zone. 



Phytobia (Calycomyza) meridiana (Hendel) 



Agromyza meridionalis Malloch (not Strobl, 1900), Trans. Amer. Ent, Soc, 



vol. 40, p. 35, 1914. 

 Agromyza meridiana Hendel, Konowia, vol. 2, p. 145, 1923. 



This species is imique among species of the subgenus Calycomyza 

 in having the third antennal segment yellow. No larval host plants 

 are known. I have seen specimens from Costa Rica and Mexico. 



Phytobia {Calycomyza) promissa Frick 



Phytobia (Calycomyza) jucunda (van der Wulp), Frick (part), Univ. California 



Publ. Ent., vol. 8, p. 395, 1952. 

 Phytobia (Calycomyza) promissa Frick, Ann. Ent. Soc. Amer., vol. 49, p. 287, 



1956 (figures of antenna, larval characters, and leaf mines). 



This species was described from linear-blotch mines in the leaves 

 of Aster chilensis Nees in central California. Several specimens 

 from Manitoba and Ontario were placed under this name because 

 the only observable difference was the slightly larger size. 



Phytobia (Calycomyza) solidaginis (Kaltenbach) 



Agromyza solidaginis Kaltenbach, Verh. Naturh. Ver. Preuss. Rheinlande Westfalens, 



vol. 26, p. 196, 1869. 

 Phytobia (Calycomyza) solidaginis (Kaltenbach), Frick, Ann. Ent. Soc. Amer., 



vol. 49, p. 292, 1956. 



The larvae mine the leaves of Solidago spp. Found throughout 

 the United States, eastern Canada, and Europe. 



Phytobia {Calycomyza) verbenae (Hering) 



Agromyza jucunda (van der Wulp), Coquillett (part), U. S. Dep. Agr., Div, Ent. 



Bull. 10, p. 77, 1898. 

 Dizygomyza (Calycomyza) verbenae Hering, Notulae Ent., vol. 31, p. 42, 1951. 

 Phytobia (Calycomyza) verbenae (Hering), Frick, Ann. Ent. Soc. Amer., 



vol. 49, p. 300, 1956. 



The larvae mine the leaves of Verbena spp. in the southwestern and 

 eastern United States. The species appeal's to be common. 



5i. Subgenus Trilobomyza Hendel 



Trilobomyza Hendel, in Lindner, Die Fliegen der palaearktischen Region, 

 fam. 59, p. 71, 1931. 



This is a small subgenus that contains three described Nearctic 

 species. It is characterized by thegenal height not exceeding one-third 



