72 U. S. NATIONAL MUSEUM BULLETEST 212 



Genus SCYTONOTUS Koch 



Scytonotus Koch, 1847, in Krit. Rev. Insect. Deutschlands, vol. 3, p. 57. — 



Cook and Cook, 1894, Ann. New York Acad. Sci., vol. 8, p. 233. 

 Lasiolathus Loomis, 1943, Journ. Washington Acad. Sci., vol. 33, p. 318 



(generotype: L. virginicus Loomis). 

 Generotype: Scytonotus scabricollis Koch [ = Polydesmus granulatus 

 Say, 1821]. 



Range: North America, except southeastern and southwestern United 

 States ; most species occur in the Pacific Northwest. 

 Species: Nine. 



Scytonotus amandus (Chamberlin) 



Polydesmus amandus Chamberlin, 1910, Ann. Ent. Soc. America, vol. 3, 



p. 249, pi. 38, figs. 4-6; pi. 39, fig. 1. 

 Archipolydesmus amandus Attems, 1940, Das Tierreich, Lief. 70, p. 154. 

 Type: Present location unknown. 



Type Locality: Mill Creek Canyon, Salt Lake County, Utah. 

 Range: Canyons of Wasatch Mountains in Utah and Idaho. 



Scytonotus bergrothi Chamberlin 



Scytonotus bergrothi Chamberlin, 1911, Canadian Ent., vol. 43, p. 262, 

 fig. 16. 



Scytonotus pallidus Attems, 1931, Zoologica, Stuttgart, vol. 30, Lief. 3-4, 

 p. 145, figs. 234-39 (type locality: Vancouver Island, British Colum- 

 bia ; type : Vienna Museum) . 



Type : Present location unknown. 



Type Locality : Bremerton, Kitsap County, Washington. 



Range: Vicinity of Puget Sound. Vancouver Island; Port Ludlow, Ta- 

 coma, Bremerton, Muckilteo, and Port Blackely, Washington. 



Scytonotus columbianus Chamberlin 



Scytonotus columbianus Chamberlain, 1920, Canadian Ent., vol. 52, p. 



166, figs. 16, 17. 

 Type: Mus. Comp. Zool. 



Type Locauty: British Columbia, without precise locality. 

 Range : Known only from the original collection. 



Scytonotus granulatus (Say) 



Polydesmus granulatus Say, 1821, Journ. Acad. Nat. Sci. Philadelphia, 

 vol. 2, p. 107. 



Scytonotus scabricollis Koch, 1847, in Krit. Rev. Insect. Deutschlands, vol. 

 3, p. 130; 1863, Die Myriapoden, vol. 2, pi. 80, fig. 163. (type lo- 

 cality: North America; type: unknown) . 



Scytonotus laevicollis Koch, 1847, in Krit. Rev. Insect. Deutschlands, vol. 3, 

 p. 131; 1863, Die Myriapoden, vol. 2, pi. 80, fig. 164 (type locality: 

 Pennsylvania; type: unknown). 



