Plural of androconium; specialized pheromone-producing structures found on the wings of male butterflies and moths.
From Greek 'andros' (male) combined with 'konion' (dust). The term refers to the dust-like pheromone scales on male lepidopteran wings.
Male butterflies have these special scent-powder pockets on their wings that they fluff up to waft pheromones at females—it's literally a flying perfume dispenser for attracting mates.
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