WASP GENUS CERCERIS — SCULLEN 407 



from which it can be separated by the form of the pygidimn, the 

 sculpture of the enclosure, and the color pattern of the terga. 



Types. — -The type male of C. completa Banks, from Claremont, 

 CaUf., is at the Museum of Comparative Zoology, Harvard, no. 13767- 



Distribution. — Scattered records througii California and one 

 record from southern Oregon. Specimens are as follows: 



California: cf, Acton, Los Angeles Co., Aug. 25, 1958 (E. I. Schlinger) ; cf, 

 Auburn, 1919 (L. Bruner) ; 2c?cr, Buttonwillow, Kern Co., June 17, 1957; cf, 

 Cache Creek Canyon, Yolo Co., May 30, 1955 (E. I. Schlinger) ; cf, Davis, July 

 11, 1948 (Brad Stevens) ; c?. Deep Spring, Inyo Co., July 16, 1953 (R. M. Bohart); 

 cf. Deep Spring, July 16, 1953 (E. I. Schlinger); cf. Deep Spring, July 17, 1953 

 (N. Malley) ; d". Deep Spring, July 17, 1953 (W. D. McLellan) ; 9 , Geyserville, 

 July 31, 1927 (J. C. Bradley); cf, Gorman, Los Angeles Co., July 13, 1956, 

 AscleTpias mexicana (E. G. Linsley) ; cf , Gorman, Los Angeles Co., July 13, 1956 

 (P. D. Hurd); 2cfcf, Grass Lake, Siskiyou Co., 5000 ft., July 4, 1952 (M. 

 Cazier and party); 2cf cf, Happy Camp, Siskiyou Co., July 8, 1958 (J. Powell); 

 9 , Kern Co., northwest corner of county, on U.S. 41, June 20, 1952 (W. D. 

 Murray); cf, Kernville, July 24, 1940 (L. S. Lipovsky); cf, 20 mi. S. Livermore, 

 Alameda Co., June 6, 1959 (D. J. Burdick) ; cf , Lodoga, Colusa Co., July 12, 

 1955 (E. A. Kurtz); 3cf cf, 3 mi. N. Lone Pine, Inyo Co., July 3, 1953 (J. W. 

 MacSwain) ; cf , 2 mi. N. Lone Pine, Inyo Co., July 13, 1953 (W. D. McLellan) ; 

 cf, Los Angeles Co.; cf, Los Gatos Creek, Mt. Diablo Range, Fresno Co., June 

 6-8, 1907 (Bradley) ; cf , 15 mi. W. Mineral, June 16, 1941 (D. J. and J. N. KnuU) ; 

 cf. Ridge Rute, Los Angeles Co., 3000-4000 ft., June 13, 1931 (Don Prentiss); 

 cf. Ridge Rute, June 13, 1931 (H. A. Scullen); cf, 7 mi. S. San Antonio Ranger 

 Station, Santa Clara Co., June 27, 1953 (R. O. Schuster); cf, Santa Monica Mts., 

 July 9, 1912 (J. C. Bridwell); 2cf cf, Three Rivers, 600-800 ft., July 12-14, 1907. 

 Oregon: 2cf cf. Gold HiU, July 12, 1930 (H. A. Scullen). 



Prey records. — None. 



Plant records. — Asclepias mexicana (California). 



27a. Cerceris dilatata dilatata Spinola 



Figures 34, 130a,b,c 



Cerceris dilatata Spinola, 1841, p. 118. — Dalla Torre, 1897, p. 457.— Scullen, 1961, 



p. 46; 1962, pp. 57-8. 

 Cerceris maximiliani Saussure, 1867, pi. 1, p. 94. — Cameron, 1890, p. 111. — Dalla 



Torre, 1897, p. 467. 

 Cerceris contracta Taschenberg, 1875, p. 396. — Schletterer, 1887, p. 489. — Dalla 



Torre, 1897, p. 456. 

 Cerceris olymponis Strand, 1910, p. 140. 

 Cerceris semiatra Banks, 1947, p. 25. — Scullen, 1951, p. 1005. 



Female. — Length 13 mm. Color black with brownish yellow 

 markings; normal to closely pitted; clothed with short silvery hairs. 



Head slightly wider than the thorax, black except for narrow 

 frontal eye patches and base of mandibles, all of which are brownish 

 yellow, and the first three or four segments of the flagellum, which are 

 light brown below; clypeal border is smooth, slightly extended, and 

 emarginate in the center; clypeal surface is elevated slightly in the 



