Rollin E. Coville

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The nesting behaviors of 10 females of Tachysphex inconspicuus (Kirby) (Hymenoptera: Crabronidae) were studied on a sandy, mowed lawn at the La Selva Biological Station in northeastern Costa Rica on 27-29 April 1980. Twenty-four completed nests were observed, excavated, and measured. The nests had oblique, short burrows leading to one or two shallow cells.(More)
Males of the solitary Central American beeCentris adani Cockerell possess enlarged mandibular glands filled with a fragrant fluid that was shown by gas chromatographic and mass spectral analysis to consist of nerol, geraniol, neral, ethyl laurate, and geranyl acetate. Male bees set up territories by marking a semicircular array of grass stems with these(More)
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