MILLIPEDS OF NORTH AMERICA 115 



Tynomma mutans (Chamberlin) 



Lysiopetalum mutans Chamberlin, 1910, Ann. Ent. Soc. America, vol. 3, 



p. 233, pi. 30, figs. 1-10, pi. 31, figs. 1, 2. 

 Tynomma mutans Loomis, 1937, Proc. U. S. Nat. Mus., vol. 84, p. 120. 

 Type: Present location unknown. 



Type Locality: Stanford, Santa Clara County, California. 

 Range: Known only from type locality. 



Tynomma sedecimum Loomis 



Tynomma sedecimum Loomis, 1937, Proc. U. S. Nat. Mus., vol. 84, p. 118, 



figs. 17J-1, pi. 3, fig. 6. 

 Type: U. S. Nat. Mus. (No. 1241). 



Type Locality: Between Vallejo and Cordelia, Solano County, California. 

 Range : Known only from the vicinity of the type locality. 



Suborder STRIARIDEA 



Striaroidea Cook, 1896, Brandtia, No. 2, p. 8; 1899, Proc. U. S. Nat. 

 Mus., vol. 21, p. 670. — Attems, 1926, in Kiikenthal-Krumbach, Hand- 

 buch der Zoologie, vol. 4, p. 177. 



Family STRIARIIDAE Bollman 



Striariinae Bollman, 1893, U. S. Nat. Mus. Bull. 46, p. 158. 



Striariidae Cook, 1895, Ann. New York Acad. Sci., vol. 9, p. 4; 1899, Proc. 



U. S. Nat. Mus., vol. 21, p. 670.— Loomis, 1936, Journ. Washington 



Acad. Sci., vol. 26, p. 404. 



Genus AMPLARIA Chamberlin 



Amplaria Chamberlin, 1941, Bull. Univ. Utah, biol. ser., vol. 6, No. 5, p. 9. 

 Generotype : Amplaria eutypa Chamberlin, by original designation. 

 Range: California and Oregon; North Carolina. 

 Species: Three. 



Amplaria causeyae (Chamberlin) 



Striaria causeyae Chamberhn, 1940, Canadian Ent., vol. 72, p. 58. 

 Type : Collection of R. V. Chamberlin. 



Type Locality : Duke Forest, Orange County, North Carolina. 

 Range : Known only from type locality. 



Amplaria eutypa Chamberlin 



Amplaria eutypa Chamberlin, 1941, Bull. Univ. Utah., biol. ser., vol. 6, 



No. 5, p. 9. 

 Type: Collection of R. V. Chamberlin. 



Type Locality: 9 miles north of Placerville, Eldorado County, California. 

 Range : Known only from type locality. 



