Last modified: Nov. 1, 2023, 4:45 p.m.
A very rare and local species in Belgium, mainly known from very old records from WV.
Recently (2021) observed again in the extreme west of WV.
Native
Male: an elongate valva with a well-developed costa that produced and weakly notched apically, the broad semicircular juxta with a pair of short, finger-like lateral lobes, the V-shaped vinculum ca 1.5 x length of its greatest width and the aedeagus with two thorns that are slightly less than half the length of the aedeagus.
Female: antrum rounded, a heart-shaped corpus bursae with dense microtrichia in anterior 1 / 3, with a small oval sclerotized plate and a couple of tortuous, sclerotized plates.
The larva feeds internally in the pods on the food plant and pupates in a sand-covered cocoon in the soil. The adults fly during warm evenings and later come to light.
The adults are on the wing from June towards late August.
The larvae feed on Lathyrus japonicus, Lotus corniculatus and Ononis spinosa. feeding internally in the pods.
It inhabits sand-dunes and shingle beaches.