Cnephasia asseclana (Denis & Schiffermüller, 1775)

flax tortrix

Cnephasia asseclana: larve in folded leaf of Ranunculus acris

Ranunculus acris, België, prov. Namen, Beauraing, RN Rend Peine © Stéphane Claerebout: the free living larvae remains in a spun leaf

Cnephasia asseclana: larve in folded leaf

opened leaf

Cnephasia asseclana: larve


Cnephasia asseclana: larve: anal plate & comb

detail with anal shield and comb

Cnephasia asseclana: pupa

pupa in cocoon


Small, full depth mine without a definite shape; little frass. The larva soon leaves the mine and continues feeding among spun leaves.


Strongly polyphagous

Acer platanoides, pseudoplatanus; Achillea; Aegopodium; Aesculus hippocastanum; Agrimonia eupatoria; Agrostemma; Ajuga; Alchemilla; Anchusa; Anemone nemorosa, ranunculoides; Angelica; Anthyllis; Aquilegia; Arabis alpina subsp. caucasica; Arctium; Artemisia vulgaris; Aster; Atriplex; Bellis; Borago; Calendula; Caltha; Campanula; Carum; Centaurea; Cerastium; Chaerophyllum; Chenopodium; Cirsium; Claytonia; Conopodium; Coronilla; Cortusa; Crataegus; Crepis; Cynoglossum; Dactylis; Datura; Daucus; Digitalis; Diplotaxis; Echium; Eranthis; Eupatorium; Euphorbia; Fagopyrum; Fagus; Fragaria; Fumaria; Galega; Genista; Gentiana; Geranium; Heracleum; Hypericum; Hypochaeris; Iberis; Impatiens; Inula; Isatis; Kickxia; Lapsana communis; Lathyrus; Lupinus; Malva; Melampyrum cristatum, pratense; Melilotus; Menyanthes trifoliata; ; Milium; Mimulus; Onobrychis; Oxyria digyna; Pastinaca; Ranunculus; Rubus; Rumex; Saxifraga; Scrophularia; Stachys; Teucrium; Trifolium; Trigonella; Tulipa; Tussilago; Urtica; Verbena; Vicia faba.


Larvae from autumn till spring next year, but mining larvae generally only in autumn (Robbins, 1991a).


BE recorded (Phegea, 2009).

NE recorded Kuchlein & de Vos, 1999a;, 2009).

LUX recorded (Fauna Europaea, 2009).

distribution within Europe

Entire Europe (Fauna Europaea, 2009).


Body yellowish brown to grey. Head pale brown to brown. Prothoracic and anal plate blackish brown with a light anterior margin. Pinacula black (contrary to C. incertana); segment 10 with an anal comb (contrary to C. stephensiana). See Mackay (1962a) for a detailed description of chaetotaxy and morphology.


Cnephasia interjectana Haworth, 1811; C. virgaureana Treitschke, 1835.


Despite the long list of host plants, mines in practice are found only very rarely in the Netherlands.


Ahr (1966a), Beiger (1955a), Buhr (1935a, 1953a), Hering (1934b, 1957a), Huber (1969a), Huemer (2012a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Mackay (1962a), Robbins (1991a), Skala (1951b), Sønderup (1949a), Szőcs (1977a).


mod 10.ii.2018