Last modified: Nov. 25, 2023, 11:58 a.m.
A very rare and local species in the southern part of Belgium, not seen for a long time.
Wingspan 12-14 mm. Similar to Ancylis badiana but distinguished by the lighter general coloration of the forewing, the narrower basal patch, the median fascia which has the outer edge lined throughout with white and the upper part more strongly concave, and in particular by the presence of three or sometimes four black dots at the base of the cilia below the subapical dash.
The larvae feed first by mining on the food plant, later spinning two leaves together or between two pod-like spun leaves. The adults come to light.
The moth flies in two generations, and is on the wing in May and June and subsequently late July to August.
The monophagous larvae feed on Lathyrus palustris.
It inhabits wet meadows.