Seq # 362410020

Bactra lacteana Caradja, 1916 Species

Last modified: Nov. 24, 2023, 10:16 a.m.

A very rare species in Belgium. Distribution based only on specimens examined for genitals.


Family: Tortricidae > Subfamily: Olethreutinae > Tribus: Bactrini > Genus: Bactra > Species: Bactra lacteana
Vernacular names
Schijnbiesbladroller (NL), Sedge Lance, Scarce Sedge Marble (EN)
First mention in Belgium
Larsen K. 1993. Some species of microlepidoptera new to the Belgian fauna (Lepidoptera: Tortricidae & Epermeniidae). — Phegea 21: 131–136. On page 134. view page




Wingspan 10–17 mm. Very similar in appearance to Bactra lancealana, this species has probably been overlooked. B. lacteana has two parallel short streaks just short of the costa and of the apex.
Most members of this genus should be examined for genitalia for proper identity.

Museum specimens

Specimens in nature


The larvae feed in the base of the central stems on the host plant. The larvae hibernate and pupate in the larval habitation. The adults come to light.

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Flight periods

The adults are on the wing from May towards September.

Observed on

Host plant (genera):
Carex and Juncus

It is believed to feed on Carex and onJuncus.

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It inhabits moist places.

No pictures yet!