MILLIPEDS OF NORTH AMERICA 71 



Polydesmus huhrichti Chamberlin, 1943, Ent. News, vol. 54, p. 15, figs. 1, 

 2 (type locality: St. Louis, Missouri; type: collection of R. V. Cham- 

 berlin). 



Polydesmus modocus Chamberlin, 1943, Proc. Biol. Soc. Washington, 

 vol. 56, p. 36, fig. 6 (type locality: between Modoc and Roots, Ran- 

 dolph County, Illinois; type: Chicago Nat. Hist. Mus.). 



Pseudopolydesmus pinetorum Causey, 1952, Chicago Acad. Sci. Nat. Hist. 

 Misc. No. 106, p. 6 (synonymy, distribution). 



Type:U. S.Nat. Mus. 



Type Locality : Little Rock, Pulaski County, Arkansas. 



Range: From eastern Texas and Louisiana north through Oklahoma and 

 Arkansas to central Missouri and Illinois. The terminal populations are 

 probably subspecifically distinct. 



Pseudopolydesmus planicolens (Chamberlin) 



Polydesmus planicolens Chamberlin, 1942, Canadian Ent., vol. 74, p. 16, 



fig. 2. 

 Type : Collection of R. V. Chamberlin. 

 Type Locauty: Ames, Story County, Iowa. 

 Range: Known only from type locality. 



Pseudopolydesmus scopus (Chamberlin) 



Polydesmus scopus Chamberlin, 1942, Canadian Ent., vol. 74, p. 16, fig. 1. 



Type: Collection of R. V. Chamberlin. 



Type Locality: 6 miles south of Boone, Boone County, Iowa. 



Range : Known only from type locality. 



Pseudopolydesmus serratus (Say) 



Polydesmus serratus Say, 1821, Journ. Acad. Nat. Sci. Philadelphia, vol. 2, 



p. 106. 

 Polydesmus canadensis Newport, 1844, Ann. Mag. Nat. Hist,, vol. 13, p. 



265.— Wood, 1865, Trans. Amer. Philos, Soc, vol. 13, p. 216, fig. 



43.— Attems, 1940, Das Tierreich, Lief. 70, p. 140. (type locality: 



Albany River, Hudson's Bay, Canada; type: British Museum). 

 Polydesmus pensylvanicus Koch, 1847, in Krit. Rev. Insect. Deutschlands, 



vol. 3, p. 133 ; 1863, Die Myriapoden, vol. 2, p. 18, pi. 69, fig. 142 (type 



locality: Pennsylvania; type: unknown). 

 Polydesmus glaucescens Koch, 1847, in Krit. Rev. Insect. Deutschlands, 



vol. 3, p. 133; 1863, Die Myriapoden, vol. 1, p. 59, pi. 26, fig. 51 (type 



locality: North America; type: unknown). 

 Type: Not known to exist. 

 Type Locality: "Eastern shore of Virginia." 



Range: Northeastern North America, from Maine to Minnesota, south 

 in the mountains to North Carolina; also recorded from Louisiana. 



