First report of Cephalonomia gallicola (Ashmead) (Hymenoptera, Bethylidae) in Mexico: A case of stings in humans

 Among the medically important Hymenoptera, the family Bethylidae stands out, among these the wasp Cephalonomia gallicola(Ashmead) (Hymenoptera: Bethylidae) that causes dermatitis in humans. This work reports for the first time in Mexico the presence of C. gallicola and a case of stings in humans. This report was raised in October 2019 where the affected people…

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Low concentration of azadirachtin has the same toxic effect as imidacloprid + lambda-cyhalothrin in workers of two species of leaf-cutter ants

Leaf-cutter ants of the genus Atta are pests controlled by broad-spectrum insecticides that adversely affect the environment and human health. Toxicity of 20 concentrations of chemical imidacloprid + λ-cyhalothrin and biological insecticides azadirachtin and spinetoram were evaluated on workers of A. mexicana and A. cephalotes ants. Initial evaluation determined optimal concentrations to kill 10-90%. Mean…

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