REVISION OF GENUS EUCERCERIS CRESSON 31 



of the town of Mojave, Kern County, Calif. At the same time and place 

 he took a series of five males of an undescribed species. These are 

 being described in this paper under the name of E. mojavensis. Further 

 collections and field observations may show this species to be the 

 male of E. ferruginosa Scullen. 



Prey records. — None. 



Plant records. — CleoneUa obtusifolia (California). Croton cali- 

 fornicus (California). Eriogonum mohavense (Cahfornia). 



13. Eucerceris flavocincta Cresson 



Figures 16, 71 a, b, c, d, e, f 



Eucerceris flavocinctus Cresson, 1S65, pp. 109-110. — Packard, 186G, pp. 58-59. — 

 Cresson, 1882, pp. vi, vii; 18S7, p. 281.— Ashmead, 1890, p. 32; 1899, p. 

 295.— Cresson, 1916, p. 100.— Scullen, 1939, pp. 12-14, 17, 19, 23-25, figs. 

 1-13, 18, 39, 59, 77, 92, 110, 124, 139, 157, 158a-158e; 1948, pp. 155, 158, 

 163; 1951, p. 1011.— Linsley and MacSwain, 1954, p. 11.— Bohart and Powell, 

 1956, pp. 143-144.— Krombein, 1958, p. 197; 1960a, pp. 78-79. 



Eucerceris cingulatus Cresson, 1865, pp. 110-111. — Packard, 1866, pp. 58-59. — 

 Patton, 1880, p. 400.— Cresson, 1916, p. 99. 



Cerceris cingulatus Schletterer, 1887, p. 488. 



Cerceris flavocinctus Schletterer, 1887, p. 492. — Dalla Torre, C. G., 1897, pp. 

 460-461. 



Eucerceris striareata Viereck and Cockerell, 1904, pp. 84, 85, 86. — Cresson, 1928, 

 p. 50. 



Eucerceris chapmanae Viereck and Cockerell, 1904, pp. 84, 85, 86. — Cresson, 

 1928, p. 48. 



Types. — The holotype female of E. flavocincta Cresson is at the 

 Philadelphia Academy of Natural Sciences, no. 1963. It is recorded 

 from the Rocky Mountains, Colorado Territory (Riding). The type 

 male of E. cingulatus Cresson from Colorado is at the Philadelphia 

 Academy of Natm-al Sciences, no. 1964. The type female of E. chap- 

 manae Viereck and Cockerell from White Oaks, N. Mex. is at the 

 Philadelphia Academy of Natural Sciences, no. 10395. 



Distribution. — Numerous records since 1939 have extended the 

 known range of this species further N. into parts of Canada and 

 S. into Mexico. A male recorded from "Sierra Madre Mts., 9,700 

 feet" is probably from Mexico. This would be the most southern 

 known record and the only one from Alexico. The collector and date 

 are not given on the label. 



Other collection records of special interest are the following: 



CANADA: Alberta: 9, 8cf c?, Lethbridge; 9, INIanyberries; cf, Moyie; cf, 

 St. Mary River; cf , Welling. British Columbia: 9 , Carbonate; 9 , cf , Chilcotin; 

 9 , Chopaka; 4 d' c^, Columbia Lake; 2 d" cf, Dep. Bay; 9 9 9 , 4cf cf , Galiano; cT, 

 Coldstream; cf , Invormere; 2 9 9 4cf cf Kamloops; 6 9 9 , 18 cf cf , Kaslo; 2cf cf , 



