Delplanqueia dilutella (Denis & Schiffermüller, 1775) Species
Last modified: Oct. 27, 2023, 5:44 p.m.
A very rare and local species in Belgium, mainly observed in the Calestienne region.
Details
- Classification
- Family: Pyralidae > Subfamily: Phycitinae > Tribus: Phycitini > Genus: Delplanqueia > Species: Delplanqueia dilutella
- Vernacular names
- Kleine tijmlichtmot (NL), Powdered Knot-horn (EN), Kleiner Thymianzünsler (DE)
- Synonyms
- Delplanqueia adornatella (Treitschke, 1835) and Delplanqueia subornatella (Duponchel, 1837)
- 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 subornatella). view page
- Status
-
Native
Distribution
Imago
Wingspan 18–23 mm. Determination by genitalia examination (gen. det.) required.
Museum specimens
No pictures yet!Specimens in nature
Genitalia
Size and shape of the single cornutus of the male which is, essentially, short and fat.
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Bionomics
The larvae feed on the food plant, often near a nest of the yellow ant (Lasius flavus), and form a silken gallery sometimes including debris from the ants' nest. The adults come to light.
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Flight periods
The adults fly from May towards August.
Observed on
- Host plant (species):
- Thymus drucei and Thymus serpyllum
- Host plant (genera):
- Polygala, Thymus and Globularia
The larva feeds on Thymus serpyllum.
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Habitat
The species prefers chalk or limestone soils and sandy heath areas.
No pictures yet!
