Seq # 265140030

Helcystogramma triannulella (Herrich-Schäffer, 1854) Species

Last modified: Feb. 26, 2024, 5:43 p.m.


A fairly distinct species not seen for some time in Belgium and may be extinct.


Details

Classification
Family: Gelechiidae > Subfamily: Dichomeridinae > Genus: Helcystogramma > Species: Helcystogramma triannulella
Vernacular names
Cirkeltjespalpmot (NL), Ringfleck-Palpenmotte (DE)
First mention in Belgium
Van Daele E. & Pelerents C. 1969. Synthèse des observations effectuées pendant quatre années sur les lépidoptères nocturnes de la région horticole gantoise. — Mededelingen Rijksfaculteit Landbouwwetenschappen Gent 34: 31–56. On page 39.
Status

Native


Distribution


Imago

Wingspan 16–19 mm.

Museum specimens

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Specimens in nature

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Bionomics

The larva feeds in folded or rolled leaves eating the upper parenchyma.
The adults come to light.

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Flight periods

The adults are on the wing from April towards October in two genertions a year. The species is said to hibernate, but that needs confirmation.


Observed on

Host plant (species):
Calystegia sepium and Convolvulus arvensis

The larva lives mainly on Convolvulus arvensis, also on Calystegia sepium. Othres food plants mentioned in literature are Ipomoea, Pharbitis nil and Hibiscus syriacus.

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Habitat

It inhabits meadows and grassy pastures.

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