noun
a taxonomic group within the order Diptera, consisting of flies that lack a calypter (a membranous flap) on the hind wing
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The acalyptratae are a subcategory of flies that lack a calypter, or a small lobe at the base of the wing.
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I just learned about this group of flies called acalyptratae that don't have those little lobes on their wings.
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Those acalyptratae flies are like the rebels of the fly world, refusing to conform with calypters.
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Sometimes I feel like an acalyptratae in a world full of calypterae, standing out for being different.