Seq # 490620010

Pima boisduvaliella (Guenée, 1845) Species

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.


Family: Pyralidae > Subfamily: Phycitinae > Tribus: Phycitini > Genus: Pima > Species: Pima boisduvaliella
Vernacular names
Kraslijnmot (NL), Silver-edged Knot-horn (EN), La Phycide de Boisduval (FR)
Pima farrella (Curtis, 1850)
First mention in Belgium
Fologne E. 1864. Lépidoptères nouveaux pour la faune belge observés par E. Fologne. — Annales de la Société Entomologique de Belgique 8: 273–276. On page 273.




Wingspan 22–26 mm. It is characterized by the yellowish brown forewing with a white subcostal streak.

Museum specimens

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Specimens in nature


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.

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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.

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Flight periods

The adults are on the wing from June towards late August.

Observed on

Host plant (species):
Lotus corniculatus, Ononis spinosa and Lathyrus japonicus
Host plant (genera):

The larvae feed on Lathyrus japonicus, Lotus corniculatus and Ononis spinosa. feeding internally in the pods.

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It inhabits sand-dunes and shingle beaches.

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