Seq # 500750040

Pediasia luteella (Denis & Schiffermüller, 1775) Species

Last modified: March 24, 2022, 7:20 p.m.

A very rare and local species in the southern part of Belgium.
Not observed for a very long time, but it's still possible it's overlooked due to the similarity with other Crambidae.


Family: Crambidae > Subfamily: Crambinae > Tribus: Crambini > Genus: Pediasia > Species: Pediasia luteella
Vernacular names
Egaalbruine grasmot (NL)
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. view page




Imago's can confused with darker forms of Agriphila tristella (specimens without whitish longitudinal streaks on forewings) but the earlier flightperiod can be a hint to be vigilant. Also Pediasia luteella has brownish-yellow to dirty-white antennae in contrast to the pearly white antennae of Agriphila tristella .

Museum specimens

No pictures yet!

Specimens in nature

No pictures yet!


Male genitalia are indistinguishable from Pediasia fascelinella.

No pictures yet!


Larvae can be found from September till May.

No pictures yet!


The larva lives in a silken gallery amongst roots of different grasses and hibernates.

No pictures yet!

Flight periods

Imago's are on the wing from late May towards early August.

Observed on

Host plant (species):
Festuca ovina
Host plant (genera):
Poa and Triticum

The larva feeds on Festuca ovina, Poa, Triticum and others Graminae.

No pictures yet!


Open grassy habitats.

No pictures yet!