Sept., :9i3-] MeLANDER : SYNOPSIS OF DiPTERA. 267 



positor, would be considered merely a color variation of Agroniyza 

 melampyga. It is doubtful if the males would offer structural differ- 

 ences from ordinary Agromyzas, and, moreover, the length of the 

 ovipositor and of the last abdominal segment of the female is a vari- 

 able character among the several species. 



Notes on Some Species of Agromyza. 



Agromyza curvipalpis Zetterstedt. The European specimens I 

 possess have the veins thinner than in the majority of the American 

 specimens. One male from Woods Hole, Massachusetts, is larger, 

 the head a little sturdier and the lateral shining stripes of the front 

 are narrower than usual, including the orbits from the eyes to the 

 frontal bristles. Usually the frontal bristles are located upon the 

 brightest part of the shining stripes. Various authors mention the 

 porrect curved palpi of the male. In all my males the palpi are not 

 especially conspicuous. The females are separable from niaura with 

 great difficulty. The best character seems to be the relative dense- 

 ness of the pubescence on the frontal orbits. In tnoiira these hairs 

 grow dense and are easily seen under a high magnification. 



Agromyza dimidiata Walker. This species was described as a 

 Phytomyza, but was thought by Coquillett to be the same as trifolii, 

 wdiich is sciitellata. The brief description makes identification im- 

 possible. 



Agromyza invaria Walker is unrecognizable from the description. 



Agromyza lacteipennis Fallen. This European species was re- 

 ported by Coquillett as occurring in Alaska. It belongs to the Mili- 

 chiine genus Meoneura, as has already been noticed by Hendel,^ and 

 is specifically the same as vagans Fallen. It is of common occurrence 

 in the northwest. 



Agromyza neptis Loew might be confused with parvicornis Loew, 

 which it greatly resembles. Neptis has the wings more slender, with 

 the front and hind borders more nearly parallel and the veins darker; 

 the marginal cell is about four times as long as the submarginal along 

 the costa ; in parvicornis it is about three times as long. The veins at 

 the base of the wing are dusky and not yellowish. The arista is 

 scarcely twice as long as the antennae and is microscopically pubescent. 



1 Wiener entomologische Zeitung, XXX, 35 (1911). 



