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


PSEUDOTSUGA. Douglas Fir. [Pinaceae]

One species of Pseudotsuga is recorded in Britain. The BSBI provide a downloadable plant crib for conifers.

Only one British miner is recorded on Pseudotsuga.

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

1 > Leaf-miner and case-bearer: The larvae feed on the needles. When occurring in large numbers, entire trees can be damaged, the needles turning pale as the larvae eat them from within. A number of cases are built as the larvae grow, often in the centre of a floret of needles.

Coleophora laricella larva,  dorsal
Coleophora laricella larva, dorsal
Image: © Willem Ellis (Bladmineerders van Europa)

On Larix, but not yet on Pseudotsuga, in Britain. On Larix and Pseudotsuga elsewhere. Widespread in Britain, Ireland and continental Europe.

Coleophora laricella (Hübner, 1817) [Lepidoptera: Coleophoridae].

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