Seq # 490560010

Oncocera semirubella (Scopoli, 1763) Species

Last modified: April 28, 2024, 9:53 a.m.

A fairly common species throughout Belgium.


Family: Pyralidae > Subfamily: Phycitinae > Tribus: Phycitini > Genus: Oncocera > Species: Oncocera semirubella
Vernacular names
Prachtmot (NL), Rhabarberzünsler (DE)
Oncocera carnella (Linnaeus, 1767)
First mention in Belgium
De Sélys-Longchamps E. 1844. Énumération des insectes Lépidoptères de la Belgique. — Mémoires de la Société royale des Sciences de Liége 2: 1–35. On page 23 (as Ilythia carnella L.). view page




Wingspan: 17–29 mm.

Museum specimens

Specimens in nature


The larvae live, sometimes gregariously, in a dense web.
They hibernate. Pupation in a dense cocoon amongst the food plant, on the surface of the ground or in spun leaves.
The adults are active just before dusk and later come to light.

No pictures yet!

Flight periods

The adults fly usually from June till early October, occasionally later.

Observed on

Host plant (species):
Lotus corniculatus and Trifolium repens
Host plant (genera):
Ononis, Medicago and Hippocrepis

The larva feeds on Lotus corniculatus, Trifolium repens, Ononis, Hippocrepis or Medicago.

No pictures yet!