The leaf and stem mines of British flies and other insects
 

(Coleoptera, Diptera, Hymenoptera and Lepidoptera)

by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds

 

CHAMERION. Rosebay Willowherb. [Onagraceae]


Only one species of Chamerion, Rosebay Willowherb (C. angustifolium) is recorded in Britain.

Two British miners are recorded on Chamerion.

A key to the European miners recorded on Chamerion is provided in Bladmineerders van Europa.

Rosebay Willowherb - Chamerion aungustifolium. Image: © Brian Pitkin
Rosebay Willowherb
Chamerion aungustifolium



Key for the identification of the known mines of British
insects (Diptera and non-Diptera) recorded on Chamerion


1a > Leaf-miner: A narrow contorted gallery leading to a whitish blotch with scattered frass centrally. The early gallery can merge with the blotch and there are often several to a leaf . The larva begins by making a full depth corridor, erratic in width and course; frass black, in an irregular central line. Later the larva makes a blotch, with frass in irregular clouds. This blotch can be a continuation of the corridor, but may just as well be on a different leaf. Often several mines in a leaf; in such cases the entire leaf me be mined out. Mines white at first, turning brown later. The larva lies venter-upwards in the mine. Pupation external. Occasionally in a mined leaf or in a cocoon between the leaves or on the leaves .

On Circaea and Epilobium, but not yet Chamerion, in Britain and Chamerion, Circaea and Epilobium elsewhere. Widespread in England and continental Europe.

Mompha langiella (Hübner, 1796) [Lepidoptera: Momphidae].

1b > Leaf-miner: A narrow gallery, often following the midrib, occasionally tinged red at the edges. This leads to a yellowish blotch containing dispersed frass .

On Chamerion angustifolium in Britain and elsewhere. Widespread in Britain, Ireland and continental Europe.

Mompha raschkiella (Zeller, 1839) [Lepidoptera: Momphidae].



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