1913] Agromyza and Cerodontha. 309 



outer cross vein at slightly beyond wing middle, and at rather more than 

 its own length from inner cross vein; last section of fifth vein about 

 two-thirds as long as penultimate section; veins 2 and 3 distinctly, 3 

 and 4 slightly divergent at apices. Halteres yellow, knob whitish. 

 Length 3-4 mm. 



Localities of male specimens in collection: Delaware coun- 

 ty, Pennsylvania, July 23, 1893 (collection Coquillet), the type 

 of terminalis Coquillett; Franconia, New Hampshire, (Mrs. 

 A. T. Slosson) ; White Mountains, New Hampshire (Morrison) ; 

 District of Columbia, June (collection Coquillett) ; Oswego, 

 New York, July 7, 1897; and Athens, Tennessee, August, 

 (H. S. Barber). 



The female has the apical abdominal segments so much 

 less* distinctly pale than the male, that it is with difficulty 

 one associates it with that sex. So dissimilar are the sexes 

 that Coquillett in describing terminalis failed to associate 

 with the male two females taken at the same time and place. 



It was this sex which he recorded* as neptis Loew, from 

 Chicago. There are females in collection from Delaware 

 county, Pennsylvania, Plummers Island, Maryland, August 

 3, 1912 (J. R. Malloch); Georgia (no other data); and a speci- 

 men reared from mine in leaves of Solidago, July 20, 1884, 

 Virginia (T. Pergande). I have also seen a male and female 

 taken by W. L. McAtee, on Plummers Island, Maryland; 

 and specimens in C. W. Johnson's collection from the following 

 localities: Hanover, New Hampshire; Machias, Maine; East- 

 port, Maine; Chester, Massachusetts; Winnipauk, Connecticut;, 

 Danbury, Connecticut, Rowayton, Connecticut; Buttonwoods, 

 Rhode Island; Norwich, Vermont, and Cornish, New Hamp- 

 shire. The type specimen of taeniola Coquillett is a male of 

 this species. 



A peculiarity about this species is that after death the eyes 

 are red, whereas in practically all the other species they become 

 brown or black. 



34. Agromyza neptis Loew. 



Syn: Agromyza neptis Loew, Dipt. Amer. Sept. Indig., Cent. 8, 1869, species 93. 



Male: Frons black, one-third as wide as head; center stripe opaque 

 brown-black; orbits glossy, each orbit about one-third as wide as center 

 stripe; four orbital bristles present, the hairs on orbits in an irregular 

 row between bristles and eye margin; ocellar region raised, glossy 

 black; antennee black, rather above the average size; second joint 



*Bull. 10, n. ser., 1898, Dept. Agric. p. 78. 



