REVISION OF GENUS EUCERCERIS CRESSON 



23 



9a. Eucerceris canaliculata canaliculata (Say) 



Figures 9, 10, 67 a, b, c, d, e, f, g 



Philanthus canaliculatus Say, 1823, p. 80. cT. — LeConte, 1883 Vol. 1 pp. Ill, 167. 



Cerceris bidentata Say, 1823, p. 80. 9 . — LeConte, 1883, vol. 1, p. 168. — Cresson, 

 1865, p. 130. 



Eucerceris canaliculatus Cresson, 1865, p. 112. — Packard, 1866, p. 59. — Patton, 

 1879, pp. 357-359; 1880, p. 398.— Snow, 1881, p. 99.— Cresson, 1882, pp. 

 vi, vii, viii; 1887, p. 281.— Ashmead, 1890, p. 32; 1899, p. 295.— Bridwell, 

 1899, p. 209.— Viereck and Cockerel!, 1904, pp. 84, 85, 88.— Smith, H. S., 

 1908, p. 371.— Mickel, 1917, pp. 454, 455.— ScuUen, 1939, pp. 18, 47-50, 

 figs. 30, 45, 71, 85, 104, 118, 132, 151; 1948, pp. 156, 157, 179-180; 1951, p. 

 1011; 1964, p. 208. 



Cerceris canaliculatus Schletterer, 1887, p. 488. — Dalla Torre, K. W. von, 1890, 

 p. 200. 



Cerceris cameroni Schulz, 1906, p. 194 (New name) 



Figure 8. Central Mexico. E. brunnea ScuUen 



Type. — The Neotype male from Kansas is in the collection of 

 the Philadelphia Academy of Natm-al Sciences. The homotype of 

 Cerceris bidentata Say has been lost. 



The male of E. canaliculata (Say) is at present indistinguishable 

 from the male of E. sonorae Scullen except by their distribution or 

 association with the females. 



The subspecies atronitida Scullen is a darker form found in some 

 areas. An uncommon very light form possibly should be considered 

 as a subspecies. It is found in the lower desert areas such as Imperial 

 County, Calif. 



Distribution. — The known distribution of the nominate sub- 

 species has been greatly expanded since the writer's 1939 paper 

 (p. 47). Several collecting trips into Mexico by the writer and others 

 in recent years have shown it to range over much of northern Mexico 



