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Extracted from: Timberlake P. H., (1975). The North American Species of Heterosarus Robertson (Hymenoptera, Apoidea). Universiry of California Press Berkeley. Los Angeles• London. ISBN: 0-520-09528-6.
The genital armature of this little species is simple, with parameral lobes tapering from base and fringed on outer margin of apical part, and the sagittae depressed, parallel-sided, as long as the parameral lobes, and nearly as wide as their greatest width. The subgenital plate is about twice as long as wide with narrowed apex.
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