. Bulletin - United States National Museum. Science. REVISION OF GENUS EUCERCERIS CRESSON 57 Dakota). Koeberlinia spinosa (New Mexico). Lepidium sp. (Arizona, New Mexico). L. montanum (New Mexico). Melilotus sp. (New Mexico). M. alba (Nebraska). Farthenium incanum (Mariola) (Arizona, New Mexico). Petalostemum sp. (Nebraska). Polygonum sp. (Arizona, New Mexico). Sartwellia mexicana (New Mexico). Solidago sp. (Colorado, Nebraska). Tamarix gallica (New Mexico, Oklahoma, Texas). Telesperma megapotamicum (Arizona). Xanthoxylum Clava- Herculis (Texas). 29. Eucerceris ruficeps Scullen Figures 35, 87
. Bulletin - United States National Museum. Science. REVISION OF GENUS EUCERCERIS CRESSON 57 Dakota). Koeberlinia spinosa (New Mexico). Lepidium sp. (Arizona, New Mexico). L. montanum (New Mexico). Melilotus sp. (New Mexico). M. alba (Nebraska). Farthenium incanum (Mariola) (Arizona, New Mexico). Petalostemum sp. (Nebraska). Polygonum sp. (Arizona, New Mexico). Sartwellia mexicana (New Mexico). Solidago sp. (Colorado, Nebraska). Tamarix gallica (New Mexico, Oklahoma, Texas). Telesperma megapotamicum (Arizona). Xanthoxylum Clava- Herculis (Texas). 29. Eucerceris ruficeps Scullen Figures 35, 87 a, b, c, d, e, f Eucerceris ruficeps Scullen, 1948, pp. 159, 175-176, ? figs. lOA, B, C, 14; 1951, p. 1012.—Linsley and MacSwain, 1954, pp. 11-14.—Krombein, 1958, p. 197; 1960a, pp. 78-79. Figure 35. Southwestern E. ruficeps Scullen. At the time the female was'described in 1948 the male of E. ruficeps ScuUen was unknovsTi. The male is described here. By error the holo- type and paratypes were indicated as "; Male,—^Length 10 mm. Black with Hght yellow markings; puncta- tion normal; pubescence short. Head one fourth wider than the thorax, black except for the entire face and small narrow patches back of the eyes; small black patches appear above the antennal scrobes; three subequal denticles on the margin of the medial clypeal lobe; mandibles without denticles; antennae normal in form. Thorax black except for the pronotum, a divided band on the scutellum, the metanotum, large patches on the propodeum, and most of the pleuron and ventral surfaces, all of which are light yellow;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by t
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