March fly

March flyMarch fly (Plecia nearctica).

March fly, (family Bibionidae), any member of a family of stout insects in the fly order, Diptera, that are commonly seen around flowers during spring and early summer. The dark, short adults frequently have red and yellow markings. The larvae feed on the roots of plants and on decaying vegetation and may occasionally become plant pests.

This article was most recently revised and updated by Kara Rogers.
Citation Information
Article Title: March fly
Website Name: Encyclopaedia Britannica
Publisher: Encyclopaedia Britannica, Inc.
Date Published: 24 August 2016
Access Date: February 22, 2025