Seq # 490310060

Acrobasis sodalella Zeller, 1848 Species

Last modified: Oct. 26, 2023, 4:03 p.m.

A very rare and local species in Belgium, not often recorded. Can be easily confused with Acrobasis consociella.


Family: Pyralidae > Subfamily: Phycitinae > Tribus: Phycitini > Genus: Acrobasis > Species: Acrobasis sodalella
Vernacular names
Stoffige eikenlichtmot (NL), La Phycide poudreuse (FR), Eichengebüsch-Schmalzünsler (DE)
First mention in Belgium
Dufrane A. 1907. Note sur quelques lépidoptères belges. — Revue de la Société entomologique namuroise 7: 14–15. On page 15.




Acrobasis sodalella generally seems to be somewhat larger and more vividly colored and marked than the very similar Acrobasis consociella.

Museum specimens

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Specimens in nature

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The caterpillar can be easily distinguished from A. consociella. The head and neck-shield are strongly spotted with black (in A. consociella the head and neck-shield are yellowish, the neck-shield much less spotted, on the head only 1-2 blackish spots in front on each half). Abdomen with sharp dark longitudinal lines. The caterpillars live in groups in relatively large, tightly woven nests, each in its own twisted tube.

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The newborn larvae erode the back of leaves, the second-instar and third-instar larvae overwinters under cover formed with a good quantity of silky threads and leaves.
The last-instar larvae live in a web nests between the leaves made up of more eroded leaves bound together by silky threads within which the larvae live in web tunnels and crawl out from these to feed on the foliage. Also found together in the terminal shoot.

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Flight periods

The adults are on the wing from end of May towards mid-August.

Observed on

Host plant (genera):
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The species prefers sandy soils.

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