. Bulletin - United States National Museum. Science. 18 NATIONAL MUSEUM BULLETIN 2 68 Abdomen black except for a divided band on tergiim 1, narrow solid bands on the apical half of terga 2, 3, 4, and 5, all of which are creamy white; venter immaculate; pygidium with a broad base, sides slightly convex and converging to a slender but rounded apex. Male.—^Length 9 to 10 mm. Black with creamy white markings except for some leg parts which are fuliginous; punctation average; pubescence short. Head subequal in width to the thorax; black except for elongate frontal eye patches which are mediall


. Bulletin - United States National Museum. Science. 18 NATIONAL MUSEUM BULLETIN 2 68 Abdomen black except for a divided band on tergiim 1, narrow solid bands on the apical half of terga 2, 3, 4, and 5, all of which are creamy white; venter immaculate; pygidium with a broad base, sides slightly convex and converging to a slender but rounded apex. Male.—^Length 9 to 10 mm. Black with creamy white markings except for some leg parts which are fuliginous; punctation average; pubescence short. Head subequal in width to the thorax; black except for elongate frontal eye patches which are medially emarginate, most of the medial clypeal lobe, large triangular patches on the lateral lobes, an elongate area between the antennal scrobes, a round spot back of the eye and a patch on the base of the mandible, all of which are. 'Z '"'^_ 1<f-C l/ Figure 5. Central Mexico. E. haccharidis, new species /" creamy white; clypeal border with three black denticles on the medial lobe, the medial one the largest; hair lobes indistinct; mandibles without denticles; antennae black and normal in form. Thorax colored as for the female; tegulae low and smooth; enclo- sure as in the female; mesosternal tubercles absent; legs colored as in the female; wing colors and venation as for the female. Abdomen colored dorsally as on the female; venter with solid creamy white bands on sterna 3 and 4, sternum 5 with minute spots laterally; pygidium as illustrated (fig. 63f). Both sexes of this species closely resemble E. vittatifrons Cresson in size, colors, color pattern and wing venation. The females, how- ever, differ in the structure of the clypeal borders and the oval white patches on the first and second pair of femora of E. haccharidis. The males may usually be separated by the oval patches on the fore and mid femora of the latter Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and app


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience