. Bulletin - United States National Museum. Science. 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


. Bulletin - United States National Museum. Science. 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. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these


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