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The biology, ethology, and impact on saltcedar ofConiatus tamarisci(F.) (Coleoptera: Curculionidae, Hyperini) were studied in southern France, in nature and in a field laboratory, at each developmental stage. Adults and larvae fed on saltcedar buds, leaves, and stems during the entire vegetative phase of the host plant. The adults began ovipositing 4–5 days after emergence and laid an average of 100–200...