84 ENTOMOLOGICAL SOCIETY 



SYNOPSIS OF SPECIES. 



1. In front wings the cross-veinlets in apical half fairly distinct 2 



In front wings the cross-veinlet connecting cubitus and median vein 



distinct; the others almost invisible; in hind wings the radial 

 sector has a long fork westwoodi. 



2. In hind wings the radial sector has a long fork , . . . .fitchi. 



In hind wings the radial sector has only a very short fork, close 



to the margin farinosa. 



Malacomyza westwoodi Fitch (PI. VII, fig. 7). 



Head yellowish; antennae brown, of about 24 joints, thicker in the 

 male than in the female; thorax and abdomen brown; legs brown, 

 hind tibia barely swollen, tarsi rather long. Wings dark, mealy, with 

 extremely minute cilia around edge, some on hind margin of hind 

 wings quite long. Venation as figured; the cross-veins in outer part 

 of fore wings very faint and indistinct, except that connecting cubitus 

 and median; this one is very prominent. The hind wings are long; the 

 radial sector arises near base and has a long fork, as long as the 

 pedicel ; the median is simple, no cross-veins are visible, except that con 

 necting median and cubitus. 



Length, 2.4 mm. 



Specimens from Falls Church, Va., and Lakehurst, N. J., 

 in May and August. Fitch's specimen was from central New 

 York ; I do not think it is now in existence, but his description 

 leaves no doubt as to the species. 



Malacomyza fitchi Banks (PL VII, fig. 6). 



Head brownish; antennae yellowish, slender in female, heavy in male, 

 of about 28 joints; thorax brownish; abdomen yellowish; legs pale, 

 hind tibia not swollen, tarsi long. Wings pale, with long cilia around 

 outer and posterior margins, short on front margin. Venation as 

 figured, forks of radial sector longer than discal cell, the veinlet closing 

 discal cell and that next below out some distance on the forks (not 

 at base as in other species), the veinlet between median and cubitus at 

 least its length before the fork of median; in one specimen the veinlet 

 to subcosta is just above that closing the discal cell. In hind wings, 

 which are almost as long as fore pair, the radial sector has long forks, 

 and the median is simple. 



Length, 2.5 mm. 



Besides the type from Colorado, I have one specimen from 

 Onaga, Kans. (Crevecoeur), which agrees in all essential 

 points. 



