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/ˈɔːl.də.flaɪ/ · noun
A member of any one of the 66 species of the family Sialidae of megalopteran insects, each specimen of which has a body length not exceeding one inch and possesses long filamentous antennae and four large dark wings..
Use alder fly when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Alder fly means A member of any one of the 66 species of the family Sialidae of megalopteran insects, each specimen of which has a body length not exceeding one inch and possesses long filamentous antennae and four large dark wings..
Common synonyms include orl fly, alder fly, sialis lutaria.
The opposite depends on the specific sense.
Use alder fly where its definition matches the intended context.
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