REVISION OF STREPSIPTERA PIERCE. 193 



nana Kirby, England (female), (Perkins, 1892). 



nasoni Robertson (metatype), Ashbourne, Pennsylvania, April 19 

 (H. L. Viereck), (female); Stylops nasoni Pierce (from collec- 

 tion H. L. Viereck). 



neglecta Duf our (Biareolina) = Biareolina neglecta Dufour. 



nigroaenea Kirby. 



1. England (male, female); Stylops melittse Kirby (Kirby, 



1802; Perez, 1886). 



2. Mecklenburg and Strassburg, Germany; Thuringia; 



Hungary (Friese, 1893). 



3. (stylopized) aprilina Smith, England (females, exuvium), 



(S. S. Saunders, 1872; Smith). 

 nigrosericea Dours, Hungary (Friese, 1893). 

 nitida Kirby. 



1. England (female), (Smith, 1859; Perez, 1886). 



2. Strassburg, Germany; Thuringia; Hungary (Friese, 



1893). 



nitidiuscula Schenck (Perez, 1886). 



nivalis Smith, Milwaukee, Wisconsin, June 11 (female); Stylops 

 gramicheri Pierce (collection S. Graenicher). 



niveata Friese (latiftmbria Perez), (Perez, 1886). 



nubecula Smith, Twin Mountain, New Hampshire (W. F. Fiske), 

 (exuvium) ; Colorado (female) ; Stylops nubeculse Pierce. 



nycthemera Imhof, Strassburg, Germany (Friese, 1893, 1906). 



ovina Klug (pratensis Nylander), Merseburg and Wessenfels, Ger- 

 many (males, females) ; Stylops aterrimus Friese (Sagemehl, 

 1882; Friese, 1883, 1893; Nassonow, 1893 a). 



panurgina Destefani (Perez, 1886). 



parviceps Kriechbaumer, Fiume, Hungary (Friese, 1893). 



parvula Kirby. 



1. England (female), (Pickering, 1835; Smith, 1859; Sage- 



mehl, 1882; Perez, 1886). 



2. Gissen (Nassonow, 1893 a). 



3. minutula Kirby, Germany, "everywhere" (Friese, 1893). 



4. minutula Kirby, England (female), (Perkins, 1892). 

 piceicornis Dours = variabilis Smith. 



picicornis Kirby = trimmerana (stylopized) picicornis Kirby. 

 picicrus Schenck (albofasciata Perez), (Schenck; Perez, 1886). 

 picipes Kirby = trimmerana (stylopized) picipes Kirby. 

 pilipes Rossi = carbonaria Linnaeus. 

 placida Smith, Salem, Massachusetts, April 29 (male, female); 



Stylops packardi Pierce (childreni Packard), (Packard, 1864, 



1872). 



