One of the mysteries of the English language finally explained.
(of an insects) having no wings.
- ‘Four of five strains tested clearly showed staining specifically in the dorsal compartment of the wing disc, as expected for apterous expression.’
- ‘The presence of a fundatrix, the numbers of soldiers, nonsoldier nymphs, apterous adults (all instars), and alates were recorded.’
- ‘As originally described, Liassothrips is either a nymph or an apterous adult.’
- ‘Prey items were separated into morphotypes based on order, life stage (adult/larva), and in the case of Hymenoptera, apterous or winged.’
- ‘Importantly, sexual selection favors apterous males in several natural populations of a water strider species.’
Late 18th century: from Greek apteros (from a- ‘without’ + pteron ‘wing’) + -ous.
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