Seq # 362410040

Bactra robustana (Christoph, 1872) Species

Last modified: Nov. 24, 2023, 10:50 a.m.

A very rare species in Belgium, mainly observed in the northern part. Distribution based only on specimens examined for genitals.


Family: Tortricidae > Subfamily: Olethreutinae > Tribus: Bactrini > Genus: Bactra > Species: Bactra robustana
Vernacular names
Zeebiesbladroller (NL), Saltern Marble (EN)
Bactra scirpicolana Pierce & Metcalfe, 1935
First mention in Belgium
Janmoulle E. 1956. Espèces nouvelles pour la faune belge (suite). — Lambillionea 56: 1, 58, 81. On page 58.




Wingspan 16–22 mm. Averages larger species than other Bactra and less commonly pale. Most members of this genus should be examined for genitalia for proper identity.

Museum specimens

Specimens in nature

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Larvae live in the stems and rhizomes. Pupation in the stem in a strong cocoon, affected stems turn yellow. The adults come to light.

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Flight periods

The adults are on the wing from mid-May towards late September.

Observed on

Host plant (species):
Scirpus maritimus

The larva lives on Bolboschoenus maritimus.

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It inhabits saltmarshes along the coast, inland on marshes and moist places.

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