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S. aberrans Hardy

Head. About 1/3 higher than long, tapered ventrally as seen in direct lateral view. At the broadest point the width of the gena is about 1/4 the eye height. Front entirely opaque black; gray on the orbits and on the ocellar triangle. The occiput is dark brown to black on the upper 4/5, covered with gray pollen; the extreme lower portion is tinged with brown. The fact is black except for a ting to yellow on the upper portion. The clypeus is dark brown to black. The palpi are yellow; each has one small black apical bristle plus several black setae near the apex. One moderately strong bristle is present on the upper edit of the vibrissal row; this is almost equal in size to the upper reclinate bristles of the front. The face is distinctly carinate. The anterior reclinate bristles are about 1/2 as long as the proclinates and are situated opposite the latter. The first two antennal segments are yellow, tinged slightly with brown on the dorsal portions; the third segment is dark brown. The arista has 3 or 4 dorsal and 1 ventral ray in addition to the rather small apical fork.

Thorax. Brown to black, tinged faintly with rufous in the ground color of the pleura, and covered with gray pollen except for a faint indication o a median brown vitta which extends from the posterior margin of the mesonotum 1/2 the distance between the 2 pairs of dorsocentral bristles. Four rows of acrostichal setae are present on the mesonotum. The anterior dorsocentrals are situated slightly in front of the line drawn between the first suraalars. The humeral bristle is about equal to the posterior notopleural bristle. The anterior sternopleural bristle is about 1/2 as long as the posterior bristle.\\
Legs. Yellow except for a tinge of brown on the apices of the tarsi. The front tibiae and tarsi are rather densely covered with short erect setae. The front basitarsus is about 1/3 as long as the tibia.

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