REVISION OF GENUS EUCERCERIS CRESSON 59 



30. Eucerceris sitnilis Cresson 



Figures 36, 88 a, b, c, d, e, f 



Eucerceris similis Cresson, 1879, p. xxiv; 1882, pp. vi, vii; 1887, p. 281. — Ash- 

 mead, 1899, p. 295.— Cresson 1916, p. 101.— ScuUcn, 1939, pp. 18, 19, 30- 

 32, figs. 20, 40, 62, 80, 95, 113, 127, 142; 1948, pp. 156, 159; 1951, p. 1012. 



Cerceris similis Dalla Torre, K. W. von, 1890, p. 202.— Dalla Torre, C. G., 1897, 

 p. 477. 



Type. — The lectotype female of E. similis Cresson from Nevada 

 (H. K. Morrison) is in the Philadelphia Academy of Natural History, 

 no. 1965.1. 



Distribution. — E. similis Cresson is primarily a species of the 

 mountains of California and southern Oregon with a few records 

 from Nevada. Specimens are as follows: 



Figure 36. Southwestern U.S. E. similis Cresson 



130 females and 437 males have been recorded from California. These are 

 mostly from central and northern localities of the state. 



Nevada: 3cfcf, Charcoal Ovens, State Park, White Pine County, July 5, 

 1960 (T. K. Haig); d", Galena, Washoe County, 6,300 ft. elev., July 26, 1959 

 (F. D. Parker) ; ? , Glenbrook, Douglas County, Sept. 12, 1923 (Carl D. Duncan) ; 

 3c? cf, Nevada, "1-1880" (Morrison); ?, 2c?' cf, "Nevada." Oregon: 5cfcf, 

 Colestin, Jackson County, July 30, 1918 (E. C. Van Dyke) ; ? , Eagle Ridge, 

 Klamath Lake, June 14, 1924 (C. L. Fox); 2d'd', Green Spring Mt., Jackson 

 County, 17 mi. E. of Ashland, Aug. 15, 1944 (H. A. ScuUen) ; 3? ?, llcf cf, 

 Lake-of-the- Woods, 4,950 ft. elev., July 18, 1930, Aug. 12, 1935 (H. A. Scullen) ; 

 2? ?, 4cf cf, same locality, Aug. 12, 13, 1935 (George R. Ferguson); llcfcT, 

 Upper Klamath Lake, Klamath County, 4,200 ft. elev., Aug. 13, 1935, at Daucus 

 carota (H. A. Scullen); 14 ? ? , 21 cf cf , W. side of Klamath Lake, Aug. 16, 1944, 

 at D. carota (H. A. Scullen) ; 2 9 9 , ScT d', Pelican Bay, Klamath Lake, July 22, 

 1930 (H. A. Scullen) ; 2 cf cf , same locality, July 14, 1950 (C Fitch) ; 4 ? ? , 29 d^ d^, 

 Prospect, Jackson Co., 2,578 ft. elev., Aug. 7, 9, 1944, July 27, 1945, at Solidago 

 sp. (H. A. Scullen); 9 , 10 mi. N. of Prospect, Aug. 9, 1944 (H. A. Scullen). 



274-514—68 5 



