REVISION MALACOSOMA HUBNER IN NORTH AMERICA 163 



PARALECTOTYPES— One male, in the USNM. 



DISTRIBUTION (fig. 2). — M. calif ornicum lutescens extends north to 

 the northern edge of the prairies in Canada, and southward into central 

 Texas. See "The pluviale-httescens relationship" in the section on experi- 

 mental crosses for a discussion of the relationsliips betw'een AI. cali- 

 f ornicum lutescens and M. calif ornicum pluviale (page 60). The western 

 boundary is impossible to set exactly because of gradual intergradation 

 with other populations of M. californicum, but c. lutescens should be 

 restricted to the Great Plains area east of the Rocky Mountains. Its 

 eastern limit overlaps the western limit of M. americanum in a relatively 

 narrow zone. This is more fully discussed under "comments" for ameri- 

 canum (page 115). 



Specimens Examined. — 2144 (Museum specimens — 521 males, 1S9 females, 

 1117 larvae; reared specimens — 197 males, 110 females, plus numerous 

 larvae and cg^ masses). See Appendix I for data on collections made during 

 this study, and for data on collections of intermediates between M. californicum 

 lutescens and M. californicum pluviale (page 275). 



United States. — Kansas: Hamilton Co. Minnesota: Melrose. Mon- 

 tana: Bozeman; J^ mi. E. Ft. Peck; Glasgow; 1 mi. W. Glasgow; 6 mi. W. 

 Glasgow; 8 mi, W. Glasgow; Havre; Hill Co.; 10 mi. NE. Hinsdale; Jordan 

 (Garfield Co.); 4 mi. W. Livingston; 5 mi. S. Livingston; 10 mi. S. Living- 

 ston; Miles City; Montana Experiment Station (Hill Co.); Nashua; Paxton 

 (Dawson Co.); Poplar; Richele Lodge (near Red Lodge, Carbon Co.); 8 mi. 

 NW. Saco (Phillips Co.); Tampico; Yellowstone Co. Nebraska: Canyon 

 region N. of Harrison (Sioux Co.); Sioux Co. north Dakota: Bottineau; 

 Sulleys HLll National Game Preserve, Devils Lake; Ft. Totten Indian Res.; 

 Mandan; North Dakota Badlands; 13 mi. SW. Walhalla. south Dakota: 

 5 mi. W. Midland (Haakon Co.); Spring Creek Camp, 11 mi. NE. Hill City 

 (Pennington Co.). Wyoming: Cody. 



Canada. — alberta: Bassano; Beauvallon; 10 mi. SW. Bonnyville; 

 Brooks; Clandonald; Cold Lake; Consort; Coronation; 13 mi. E. Coronation; 

 Craigmyle; Czar; Derwent; Dewberry; 15 mi. SW. Edmonton; Elk Point; 

 Eikwater; 10 mi. N. Frog Lake; Gibbons; Hanna; 14 mi. SE. Hanna; Hilda; 

 Irvine; 10 mi. S. LeGoff; Lethbridge; 13 mi. N. Lloydminster; 28 mi. S. 

 Lloydminster; Dom. Ranger Sta., Mannyberries; Marwayne; 30 mi. S. 

 Medicine Hat; 40 mi. S. Medicine Hat; Munson; Pashley; Provost; Red Deer 

 River, 50 mi. NE. Gleichen; Rosebud Junction; Sunnydale, Lloydminster; 

 Taber; Vermilion; 32 mi. E. Wainwright; Wetiskow. Manitoba: Alonsa; 

 Ashern; Aweme; Beaver Creek; Beulah; Cowan; }^ mi. N. Cowan; Carberry; 

 Cartwright; 1 mi. W. Elphinstone; Erickson; Fisher Branch; Glenboro; 

 Griswold; Lundar; Melbourne; Miniota; 6 mi. S. Minnedosa; 8 mi. S. Minne- 

 dosa; Moosehorn; Narcisse; Neepawa; Poplarfield; Riding Mountain National 

 Park; Rorketon; Sidney; Spruce Woods Forest Reserve; "Manitoba"; "Man." 

 Saskatchewan: Admiral; Archerwill; Ardath; Armley; Arran; Attons Lake, 

 Cut Knife; Brewer; Broadview; Burstall; Canora; Carlton; Caron; Caverly; 



