Seq # 265510080

Caryocolum tricolorella (Haworth, 1812) Species

Last modified: Feb. 27, 2024, 10:52 a.m.


A very rare and local species in Belgium, with most observations in the southern part of the country.


Details

Classification
Family: Gelechiidae > Subfamily: Gelechiinae > Tribus: Gnorimoschemini > Genus: Caryocolum > Species: Caryocolum tricolorella
Vernacular names
Driekleurige kustmot (NL), Three-colour Groundling, Beautiful Groundling (EN)
Synonyms
Caryocolum contigua (Haworth, 1828)
First mention in Belgium
Fologne E. 1860. Lépidoptères et chenilles observés en Belgique. — Annales de la Société entomologique belge 4: 108–112. On page 110.
Status

Native


Distribution


Imago

Although superficially similar to other Caryocolum species, the blackish sub-basal mark from costa contrasting to the clear white fasciae and the orange-brown markings and the larger size are diagnostic.
Wingspan 13–15 mm.

Museum specimens

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Specimens in nature


Genitalia


Caterpillar


Bionomics

The larvae feed on the food plant, initally mining the leaves in a gallery in the autumn, starting at the base of the leaf, the mine is first filled with thick black frass which is later extruded through a small hole in the middle of the mine. After overwintering the larva feeds between spun leaves and/or terminal shoots. Pupation takes place on the ground.
The adults become active from before sunset and later can be attracted to light.

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Flight periods

The adults have been seen from early July towards late August in one generation a year.


Observed on

Host plant (species):
Stellaria holostea

The larva lives on Stellaria holostea.

No pictures yet!

Habitat

It inhabits open mixed forests and hedgerows.

No pictures yet!