74 U. S. NATIONAL MUSEUM BULLETEST 212 



Type: Mus. Comp. Zool. 



Type Locality: Thornton Gap, Page and Rappahannock Counties, 

 Virginia. 



Range: Apparently restricted to the Blue Ridge Province, from northern 

 Virginia south as far as Linville Falls, North Carolina. 



Genus SPEODESMUS Loomis 



Speodesmus Loomis, 1939, Bull. Mus. Comp. Zool., vol. 86, p. 187. 

 Generotype: Speodesmus echinourus Loomis, by original designation. 

 Range: Texas. 

 Species: One. 



Speodesmus echinourus Loomis 



Speodesmus echinourus Loomis, 1939, Bull. Mus. Comp. Zool., vol. 86, 



p. 188, fig. 13a-g. 

 Type: Mus. Comp. Zool. 



Type Locality : Prassel Ranch Cave, Kerrville, Kerr County, Texas. 

 Range: Caves in Kerr, Kendall, and Hays Counties, Texas. 



Genus SPEORTHUS Chamberlin 



Speorthus Chamberlin, 1952, Ent. News, vol. 63, p. 12. 



Generotype: Speorthus tuganbius Chamberlin, by original designation. 



Range: New Mexico. 



Species: One. 



Speorthus tuganbius Chamberlin 



Speorthus tuganbius Chamberlin, 1952, Ent. News, vol. 63, p. 12. 



Type : Collection of R. V. Chamberlin. 



Type Locality: Carlsbad Caverns, New Mexico. 



Range : Known only from type locality. 



Genus TIDESMUS Chamberlin 



Tidesmus Chamberlin, 1943, Proc. Biol. Soc. Washington, vol. 56, p. 35. 

 Generotype: Tidesmus episcopus Chamberlin, by original designation. 

 Range : California and Nevada. 

 Species: Two. 



Tidesmus episcopus Chamberlin 



Tidesmus episcopus Chamberlin, 1943, Proc. Biol. Soc. Washington, vol. 



56, p. 35, figs. 1-3. 

 Type: Chicago Nat. Hist. Mus. 



Type Locality: Bishop's Road, Reservoir Hill, Los Angeles County, 

 California. 



Range : Known only from type locality. 



