Elachista irrorata
Braun, 1920
A small North American in the Elachistidae, described by Braun in 1920. have a wingspan of 8.2–11 mm and are active from March through October. The larvae are leaf miners that feed on two specific grass : Glyceria striata and Agrostis perennans, with larval activity occurring in April and May. The species is recorded from 11 states/provinces in the eastern United States and Ontario, Canada.
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Distribution
Eastern North America: recorded from Illinois, Indiana, Maine, New Jersey, New York, Ohio, Ontario (Canada), Pennsylvania, Tennessee, Virginia, and West Virginia.
Seasonality
active March to October; larvae present April to May.
Diet
Larvae feed on Glyceria striata and Agrostis perennans, mining the leaves of these grasses.
Life Cycle
Larval stage occurs in April and May; emerge and are active from March through October, suggesting overlapping or an extended period.
Behavior
Larvae create leaf mines in plant foliage.