Saint Mark's fly

noun

-ˈmärks-
: a large black angular European bibionid fly (Bibio marci) that usually emerges about the end of April

Word History

Etymology

after St. Mark the Evangelist, whose feast day is April 25

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Cite this Entry

“Saint Mark's fly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Saint%20Mark%27s%20fly. Accessed 7 Feb. 2023.

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