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


OLEA. Olives. [Oleaceae]

Olives have been recorded in Britain

Only one British miner is recorded on Olea.

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

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

1 > Leaf-miner: It is the third generation, appearing in the autumn and overwintering, which mines leaves. The larvae spin the leaves, forming a protective cover. The spring (first) generation attack the developing flowers and the second generation live inside the olive kernels. Initially the larva makes an upper-surface, short, narrow corridor. Later, in early spring, it may abandon this mine and make elsewhere on the leaf an irregular full depth blotch, or it may continue the corridor into a blotch. Most frass is ejected through a hole in the mine; part of it is captured in spinning at the leaf underside. In the end the larva lives free under the leaf, causing window feeding.

On Olea, Jasminum, Ligustrum and Phillyrea in Britain and Olea and Phillyrea elsewhere. First discovered in the Surrey in 2009. Widespread in continental Europe.

Prays oleae (Bernard, 1788) [Lepidoptera: Yponomeutidae].

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