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Updated: June 28, 2025
In the immense class of insects the sexes sometimes differ in their locomotive-organs, and often in their sense-organs, as in the pectinated and beautifully plumose antennae of the males of many species. In Chloeon, one of the Ephemerae, the male has great pillared eyes, of which the female is entirely destitute. Sir J. Lubbock, 'Transact. Linnean Soc. vol. xxv, 1866, p. 484.
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