MILLIPEDS OF NORTH AMERICA 87 



Range: Known definitely only from the type locality. The records for 

 Arkansas by BoUman and Michigan by Chamberlin probably pertain to 

 other, undescribed, forms. 



Family CASEYIDAE Verhoeff 

 Caseyidae Verhoeff, 1909, Zool. Anz., vol. 34, p. 567. 

 Genus CASEYA Cook and Collins 



Caseya Cook and Collins, 1895, Ann. New York Acad. Sci., vol. 9, p. 84. 

 Generotype : Caseya heteropus Cook and Collins, by original designation. 

 Range: California and Oregon. 

 Species: Six. 



Caseya bentona Chamberlin 



Caseya bentona Chamberlin, 1952, Chicago Acad. Sci. Nat. Hist. Misc. 



No. 113, p. 2, figs. 3-6. 

 Type: Collection of R. V. Chamberlin. 

 Type Locality: Mary's Peak, Benton County, Oregon. 

 Range: Known only from type locality. 



Caseya dynopta Chamberlin 



Caseya dynopta Chamberlin, 1947, Proc. Biol. Soc. Washington, vol. 60, 



p. 9. 

 Type: Collection of R. V. ChamberUn. 



Type Locality: Hastings Reservation, Monterey County, CaUfornia. 

 Range : Known only from type locality. 



Caseya heteropus Cook and Collins 



Caseya heteropus Cook and Collins, 1895, Ann. New York Acad. Sci.. 



vol. 9, p. 85, figs. 191-219. 

 Type: U. S. Nat. Mus. 



Type Locality: California, probably vicinity of San Francisco. 

 Range: No precise localities are known for this species. 



Caseya irritans Chamberlin 



Caseya irritans Chamberlin, 1910, Ann. Ent. Soc. Amer., vol. 3, p. 241, 



pi. 34, figs. 6-9, pi. 35, fig. 1. 

 Type: Present location unknown. 

 Type Locality : Portland, Muhnomah County, Oregon. 

 Range: Known only from type locality. 



Caseya sequoia Chamberlin 



Caseya sequoia Chamberlin, 1941, Bull. Univ. Utah, biol. ser., vol. 6, 



No. 8, p. 10, figs. 17, 18. 

 Type: Collection of R. V. Chamberlin. 



