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


SEMPERVIVUM. House Leeks. [Crassulaceae]

Three species of Sempervivum have beeen recorded in Britain, although one of them, montanum, not for 50 years.

Only one British miner is recorded on Sempervivum.

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

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

1>An egg is deposited in the centre of the rosette. The larva makes untidy, winding and crossing corridors. When a leaf that has been eaten out it is left through an opening, and a new one is entered. Up to five leaves can be mined out in this way; they turn brown and shrivel. Pupation is outside the mine, in the ground. The mine is ilustrated in British Leafminers.

On Sempervivum tectorum in Britain and Sempervivum arachnoideum, Sempervivum montanum, Sempervivum tectorum in continental Europe.

Cheilosia caerulescens (Meigen, 1822) [Diptera: Syrphidae].

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