On the Suggestion That the Secretion from the Metathoracic Scent Glands of a Surface-dwelling Aquatic Insect, Gerris Najas (de Geer), (heteroptera; Gerridae) Has a Waterproofing Function


The ventral surface of the pond skater, Gerris najas, is covered with a hair pile extremely resistant to water penetration. It is possible that the hydrofuge properties of the hair pile are maintained by an oil released from glands opening out on to the general body surface. Holdgate (1955) has reported findings indicating that many surface-dwelling and… (More)


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