REVISION MALACOSOMA HUBNER IN NORTH AMERICA 169 



United States. — Arizona: Kingman; Mohave Co. California: Argus 

 Mountains; Benton (Mono Co.); Benton Station; 25 mi. NE. Bigpine; 

 Gajon Pass; 12 mi. S. Cave Spring, Mohave Desert; Clark Mountains; Conway 

 Summit, 12 mi. S. Bridgeport on US 395; Coso Valley (Inyo Co.); Glacier 

 Lodge (Inyo Co.); Granite Wells (San Bernardino Co.); Independence; 

 Leevining; 10 mi. SE. Leevining; Malibu (Los Angeles Co.); Mammoth 

 Camp (Mono Co.); Mono Lake; Junction Cal. 108 and US 395 (Mono Co.); 

 Morongo; Morongo Valley; Morongo Wash; New York Mountains; Owens 

 Valley; Palm Springs; near Perris, Gavilan Hills; Phelan (San Bernardino 

 Co.); Pleasant Valley (Alpine Co.); Providence Mountains; Bonanza Mine, 

 Providence Mountains; Randsburg; Silver Lake (Mono Co.); Smokey Valley 

 (Tulare Co.); Split Rock Tank, Mojave Desert; 4 mi. N. Tom's Place; Junction 

 Highway 89 and 395 near Topaz (Mono Co.); Walker River (Mono Co.); 

 White Mountains; Yermo; Yosemite Valley. Nevada: Clark Co.; Good- 

 springs (Clark Co.); Hiko (Lincoln Co.); Kyle Canyon, Charleston Moun- 

 tains; Lehman Creek, Mt. Wheeler (White Pine Co.); 7 mi. N. Minden 

 (Douglas Co.); Mountain Springs Summit (Clark Co.); Mt. Charleston (Clark 

 Co.); Pioche (Lincoln Co.); Virginia City (Storey Co.); Wellington (Lyon 

 Co.). UTAH: Beaver; Bellevue (Washington Co.); Bucksk(in) Valley (Iron 

 Co.); Hurricane; Junction; St. George; Zion Canyon; "S.W. Utah"; "Utah." 



Malacosoma incurvum (Henry Edwards), new status 

 Suggested common name: SOUTHWESTERN TENT CATERPILLAR " 



See the subspecies for synonymy. 



ADULT MALES (males in figs. 285-308).— Color pattern variable, 

 but not as highly variable as M. calif ornicum. Color ranging from pale 

 yellowish-gray to rather dark gray-brown; never orange-brown as 

 many M. calif ornicum may be. Forewings crossed by dark or light lines; 

 if dark, usually bordered by a narrow lighter area except on the 

 darkest specimens. Median area sometimes darker than inner or outer 

 area and appearing as a dark band as in figure 292. Inner area about 

 same color as outer area, or somewhat lighter. Lines with or without 

 indentations along veins, but rarely deep enough to cut off "islands," 

 although they sometimes meet along Cu 2, especially in lighter speci- 

 mens. Hindwings usually slightly darker than forewings, or same color, 

 sometimes crossed by a contrasting band of scales. Lower surface of 

 both forewings and hindwings about same color as upper surface or 

 slightly darker; both wings crossed by a single contrasting line, with the 

 region inside this line sometimes darker than the region on the outside. 

 Epiphysis variable in size, ranging from about length of second segment 

 of foretarsus to length of first segment of foretarsus. Some specimens 



" See Appendix III (page 289). 



