426 PROCEEDINGS OF THE NATIONAL MUSEUM vol. los 



rows of acrostichals. From Phytomyza dura this species may be 

 separated by tiie larger gena (medially two-fifths of the eye height) 

 (fig. 142), about 15 acrostichals, and the wing with M1+2 undulating 

 (fig. 143). The larvae mine in the seeds of Anemone multifida Poir. 

 Kjiown only from British Columbia. 



Phytomyza auricornis Frost 



Phytomyza auricornis Frost, Aun. Ent. Soc. Amer., vol. 20, p. 217, 1927. 



The holotype female is in the U. S. National Museum (No. 50032). 

 Phytomyza auricornis and P. flamnervis belong with those species 

 having a yellow frons, dark scutellum and femora, and the third 

 antennal mostly yellow. From P. flamnervis, P. auricornis can be 

 distinguished by its smaller size (2.5 vs. 3 mm. in wing length), the 

 thh-d antennal segment setulose (fig. 144), and the intraalar row 

 barer (2 to 3 vs. 4 to 6 setulae). Known only from the holotype from 

 New York. 



Phytomyza bicolor Coquillett 



Phytomyza bicolor Coquillett, Journ. New York Ent. Soc, vol. 10, p. 191, 1902. 



A rather large species (3 mm. in wing length) that has a dark frons, 

 antenna, and tarsi, two equal upper-orbitals, and four or five rows of 

 acrostichals. Phytomyza bicolor differs from other closely related 

 species by having the abdomen mostly yellow and the intraalar row 

 of acrostichals very setulose, with about 24 anterior to the suture and 

 12 posterior to the suture. I have seen three specimens, all from 

 New York. 



Phytomyza centralis Frost 



Phytomyza centralis Frost, Ann. Ent. Soc. Amer., vol. 29, p. 317, 1936. 



The holotype male is in the U. S. National Museum (No. 62978). 

 This is a small dark species (about 1.5 mm. in wing length) that has 

 the frons dark, the dorsal upper-orbital small, and with two lower- 

 orbitals. There are at least three setulae in the intraalar row posterior 

 to the transverse suture, and the inner postalar is about one-half as 

 long as the outer; these characters separate this species from Phyto- 

 myza minuscula. From P. loewii, P. centralis can be distinguished by 

 its fore-femur being distalh^ brown and the wing having the second 

 costal section about 1.5 times as long as the fourth (fig. 145). The 

 larvae mine the leaves of Clematis sp, hi Costa Rica. 



Phytomyza clemativora Coquillett 



Phytomyza clemativora Coquillett, Proc. Ent. Soc. Washington, vol. 12, p. 131, 

 1910. 



A relatively small yellow species with yellow frons and scutellum, 

 dark tliiixl antennal segment, and with the mesonotum marked with 



