MILLIPEDS OF NORTH AMERICA 173 



KEY TO NORTH AMERICAN FAMILIES OF CAMBALIDA 



1. Mentum divided, the promentum clearly set off Cambalidae (p. 173) 



Mentum entire, no separate promentum LEiODBRroAE (p. 179) 



Family CAMBALIDAE Bollman 



Cambalinae Bollman, 1893, U. S. Nat. Mus. Bull. 46, p. 157. 

 Cambalidae Cook, 1895, Ann. New York Acad. Sci., vol 9, p. 6. — Loomis, 

 1938, Proc. U. S. Nat. Mus., vol. 86, p. 31. 



Genus ALAKENE Chamberlin 



Alakene Chamberlin, 1941, Bull. Univ. Utah, biol. ser., vol. 6, No. 5, p. 3. 

 Generotype: Akalene simplex Chamberlin, by original designation. 

 Range: California. 

 Species: One. 



Alakene simplex Chamberlin 



Alakene simplex Chamberlin, 1941, Bull. Univ. Utah, biol. serv., vol. 6, 



No. 5, p. 3, fig. 2. 

 Type : Collection of R. V. Chamberlin. 



Type Locality: 5 miles northeast of Lemoncove, Tulare County, 

 California. 



Range : Known only from type locality. 



Genus BUWATIA Chamberlin 



Buwatia Chamberlin, 1912, Ann. Ent. Soc. America, vol. 5, p. 159. 

 Generotype: Buwatia monterea Chamberlin, by original designation. 

 Range: Southern California. 

 Species: One. 



Buwatia monterea Chamberlin 



Buwatia monterea Chamberlin, 1912, Ann, Ent. Soc. America, vol. 5, p. 



159, pi. 10, fig. 7. 

 Type: Mus. Comp. Zool. 



Type Locality: Pacific Grove, Monterey County, California. 

 Range: Known only from type locality. 



Genus CAMBALA Gray 



Cambala Gray, 1832, Insecta, in Griffith, The animal kingdom ... by 

 the Baron Cuvier, vol. 15, pi. 135. — Loomis, 1938, Proc. U. S. Nat. 

 Mus., vol. 86, p. 37. 



Generotype : Julus annulatus Say, by monotypy. 



Range: Eastern United States. 



Species: Ten. 



387630—58 12 



