REVISION OF GENUS EUCERCERIS CRESSON 



25 



9b. E. canaliculata atronitida Scullen 



Figures 11, 12 



E. canaliculata atronitida Scullen, 1939, p. 50, fig. 152; 1951, p. 1011. 

 E. biconica Scullen, 1948, pp. 178-179; 1951, p. 1011. 



E. canaliculata atronitida Scullen was described as a new variety 

 by the writer in 1939. It is now being considered a subspecies. This 

 darker form appears usually at higher altitudes in different areas. 

 There may be some question about the advisability of considering 

 it a subspecies. 



Types. — The type male of E. canaliculata atronitida from Beaver 

 Canyon, Utah, is in the U.S. National Museum, no. 51383. The 



Figure 10. Western Mexico. E. cana- 

 liculata canaliculata (Say) 



female type of E. biconica Scullen from 15 mi. N. of El Paso, Tex., 

 June 23, 1942 (H. A. Scullen) is at the California Academy of Sciences. 

 Distribution. — High elevations from Utah and western Colorado 

 S. to central Mexico. Specimens are as follows: 



Arizona: 2 cf d', Cornvllle, May 28, 1954 (G. D. Butler) ; 9 , 6 mi. E. Douglas, 

 Aug. 11, 1940 at Eriogonum sp. (C. D. Michener); 2 c? cf. Dragoon, Cochise 

 County, July 20, 1917 (J. Bequaert). Colorado: d", Frutia, 4,500 ft. elev., July 16, 

 1919; 9, Palisade, 4,700 ft. elev., August 1932 (Lee Jeppson). New Mexico: cf, 

 Albuquerque, 5,000 ft. elev., June 27, 1931 (Don Prentiss) ; 9 , 15 mi. N. Roswell, 

 Chaves County, Aug. 13, 1964 (J. G. & R. L. Rozen). Texas: cf , El Paso, June 23, 

 1942 (E. C. Van Dyke) ; 9 , 15 mi. N. El Paso, El Paso County, June 23, 1942 

 (H. A. Scullen); cf, Shafter Lake, And. County, June 17, 1961 (J. E. Gillaspy); 



9 , Sierra Blanca, El Paso County, July 8, 1917 (J. Bequaert); cf, same locality, 

 July 9, 1917 (R. C. Shannon); 5 cf cf, Terlingua, Brewster County, May 10, 1927 

 (J. O. Martin); 9 , Valentine, Presidio County, July 8, 1917 (J. Bequaert). Utah: 

 2 9 9» 4cf cf, Beaver Canyon; cf, Leamington, July 16, 1949 (G. F. Knowlton) ; 



cf, Lucin, Box Elder County, July 30, 1963 (P. Torchio, E. Bohart); cf , Parogo- 



