Rubidium in Female Culicoides variipennis sonorensis (Diptera: Ceratopogonidae) After Engorgement on a Rubidium-Treated Host

1 May 1995

journal article
Published by Oxford University Press (OUP) in Journal of Medical Entomology

Vol. 32 (3) , 387-389
https://doi.org/10.1093/jmedent/32.3.387

Abstract

A rabbit given an intraperitoneal injection of 500 mg/kg of rubidium chloride retained elevated blood levels of Rb⁺ for at least 30 d with no overt effects. All Culicoides variipennis sonorensis (Wirth & Jones) females that fed on the rabbit 1, 4, 7, and 14 d after injection were marked with Rb⁺ when engorged (day 1), and 95% were marked when gravid (day 3). At 7 d, 79% of flies were marked, and 16% exhibited elevated levels after 14 d. Eggs laid 3–4 d after feeding contained elevated Rb⁺ levels, and the rapid decline in Rb⁺ content in females was associated with metabolism of the blood meal and oviposition.

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