Rollin E. Coville

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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)
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)
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