THE CANADIAN ENTOMOLOGIST. 273 



THE EASTERN SPECIES OF PSYCHODA. 



BY NATHAN BANKS, EAST END, VA. 



In the Canadian Entomologist for December, 1894 (Vol. XXVI., 

 page 329), I presented the species of Psychoda then known to me from 

 Long Island, N. Y. In the following year, in the November number 

 (Vol. XXVII., page 324), I added some notes and described one more 

 species. Since then nothing has been published on our Eastern species. 

 Prof. Kincaid, however, has been active in studying the Western species. 



During the past few years 1 have collected them at Washington and 

 vicinity, and obtained three new species as well as many of those 

 previously described. I now give a table of all the Eastern species, 

 twelve in number, with descriptions of the three new forms : 



Table of Species. 



1. Black-winged species 2 



Gray-winged species 8 



2. Wings with iridescent scales, hind tarsi only partly white nitida 



Wings without iridescent scales 3 



3. Hind tarsi wholly pale yellowish or whitish 4 



Hind tarsi black or only partly pale 5 



4. Two black patches on the wings before the middle marg'malis 



No black patches albitarsis 



5. Hind tarsi wholly black, wings and fringe all black 6 



Hind tarsi with some white marks, wings and fringe marked with 



pale 



6. Thorax white bicolor. 



Thorax black nigra 



7. Fringe on posterior margin blackish; abdomen with white hair; 



wings banded with pale, legs pale Slossotue. 



Fringe on posterior margin more whitish ; apical margin with distinct 

 black dots, wings not plainly banded, though with scattered white 

 hair; legs black sufierba. 



8. Wings uniform gray 9. 



Wings marked with black 10. 



9. Larger; at least two millimeters long; fringe on hind margin fully as 



long as usual ci?ierea. 



