424 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



Genus ULOMORPHA Osten Sacken. 



The immature stages are spent in organic earth in cool, shaded 

 woods. 



ULOMORPHA PILOSELLA Osten Sacken. 



Virginia near Plummers Island, June 2, 1916, McAtee. 

 Genus ADELPHOMYIA Bergroth. 



ADELPHOMYIA AMERICANA Alexander. 



Several records in the Piedmont region; July 25 to October 22. 

 V. P. I. 



Genus EPIPHRAGMA Osten Sacken. 



KEY TO SPECIES. 



Wings with pale brown crossbands which are margined with darkei'; a brown 

 ring at the tip of each femur E. fascipennis (p. 424). 



Wings with an irregular pattern of brown and tawny ; a brown ring before the 

 tip of each femur E. solatrix (p. 424). 



The immature stages live beneath the damp bark of decaying trees, 



EPIPHRAGMA FASCIPENNIS Say. 



Frequent ; April 20 to June 18. P. I. 



* EPIPHRAGMA SOLATRIX Osten Sacken. 



Common ; season April 25 to September 5 ; comes to light ; has been 

 bred from rotten logs, P. I. 



Genus LIMNOPHILA Macquart. 



KEY TO SPECIES. 



1. Cell Ml of the wings present 2 



Cell Ml of the wings lacking 26. 



2. A supernumeraiy cross vein in cell R2 or in cell M 3 



No supernumerary cross vein in cell R2 or in M 4 



3. A supernumerary cross vein in cell R2; wings broad, with numerous small 



dots and spots L. fuscovaria (p. 426) 



A supernumerary cross vein in cell M; wings with about seven larger 

 brown blotches along the costal margin L. aprilina (p, 426) 



4. Apical cells of the wings with a slight pubescence; antennas of male elon 



gated 5, 



Apical cells of the wings not pubescent 6 



5. Coloration shiny black; wings banded with brown L. macrocera (p. 427) 



Coloration gray ; wings not banded or marked with darker 



L. tenuicornis (p. 428) 



6. Thorax shiny black ; male hypopygium enlarged and complicated in strue 



ture L. mwndoides (p. 427) 



Thorax not shiny black ; male hypopygium simple in structure 7 



7. Posterior tarsi white L. niveitarsis (p. 427) 



Tarsi not white 8, 



