90 
Psyche 
[September 
in the response of the two species to elevation. Dr. Wheeler 
and the writer failed to appreciate this difference in 1934 
and, in consequence, gave a very unsatisfactory account 
of the vertical range of the two species. It now appears 
that response to elevation is what mainly determines the 
range of each species. The figures for elevation which 
follow were secured from altimeter readings made at the 
station and checked then or later against topographic 
sheets. 
Novomessor albisetosus : 
Texas: Davis Mountains, Limpia Canyon (4800'), 2 
miles south of Indian Hill (5300') ; Chinati Moun- 
tains, Arsarca Canyon (4800'). 
Arizona: Huachuca Mountains, Garden Canyon (5800') 
Carr Canyon (5000'), Ft. Huachuca (5100'); Dra- 
goon Mountains, Cochise Stronghold (5200') ; Pelon- 
cillo Mountains, Cottonwood Canyon (4800') ; 
Baboquivari Mountains, Forestry Cabin (3500'), 
Brown Canyon (3900') ; Chiricahua Mountains, Nat. 
Mon. Camp Ground (5200') ; Pima County, Total 
Wreck Mine (4400'), 30 miles east of Sells (2800') ; 
Santa Cruz County, 5 miles north of Nogales, 
(3900'), Pena Blaca Springs (3700'), Ruby (4600') ; 
Hasayampa River, 5 miles south of Wickenberg 
(1800') ; 5 miles south of Clifton (3200'). 
Sonora: Cerro San Jose, 10 miles southwest of Naco 
(5100') ; 5 miles north of Santa Cruz (4700') ; 
Cibula (3600') ; La Casita (3400') ; 5 miles north 
of Imuris (3100') . 
Chihuahua: Sierra de en Medio, Nogales Ranch 
(5000') ; 9 miles north of El Sauz (4900') ; 13 and 
18 miles west of Chihuahua City (5100', 5400') ; 
16 miles east of Cuauhtemoc (5900') ; Bachimba 
(4200') ; 2, 17 and 22 miles south of Parral (5500'). 
Durango: Villa Ocampo (5700') ; 22 miles south of Villa 
Ocampo (5700'). 
