Seq # 500920010

Schoenobius gigantella (Denis & Schiffermüller, 1775) Species

Last modified: Oct. 25, 2023, 6:30 p.m.


A not so common and local species in Belgium, more observed in the north of the country.


Details

Classification
Family: Crambidae > Subfamily: Schoenobiinae > Genus: Schoenobius > Species: Schoenobius gigantella
Vernacular names
Rietsnuitmot (NL), Riesenzünsler (DE)
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 22. view page
Status

Native


Distribution


Imago

The difference between sexes (in addition to the different body-wing ratio) is by the length of the antennae: ♂ antennae are about half as long as the wings, with ♀ significantly shorter.

Museum specimens


Specimens in nature


Bionomics

The larva feeds on the young shoots of the ffod plant, often below the surface of the water. When it has finished feeding in a stem it cuts off a piece of reed about its own length and floats on this on the surface of the water until it reaches a new stem. Pupation in a stem below a prepared exit-hole.
The adults fly at dusk and later come to light.

No pictures yet!

Flight periods

The adults have been observed from May towards early September.


Observed on

Host plant (species):
Glyceria maxima
Host plant (genera):
Phragmites

The larva lives on Phragmites or Glyceria maxima.

No pictures yet!