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


TAMUS. Black Bryony. [Dioscoreaceae]


Only one species of Tamus, Black Bryony (T. communis), is recorded in Britain.

Only one British miner is recorded on Tamus.

A key to the European miners recorded on Dioscorea including Tamus is provided in Bladmineerders van Europa.

Black Bryony - Tamus communis. Image: © Linda Pitkin
Black Bryony
Tamus communis

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

1 > Leaf-miner: In the first instar the larva mines the leaves, forming short, irregular, blotch-like mines, but in later instars it lives externally, feeding in spun leaves and often twisting those of tender shoots. Larval head light-brown or yellowish brown, edged with black postero-laterally, ocellar area blackish; prothoracic plate black edged with whitish anteriorly; abdomen dull dark green; pinacula distinct, black, sometimes brownish but with black bases to setae; anal plate large, black (Bradley et al., 1973). Small, full depth mine without a definite shape; little frass. Some silk is deposited in the mine. The larva soon leaves the mine and continues feeding among spun leaves.

Polyphagous. On numerous genera and species of several plant families, but not yet on Tamus, in Britain. On numerous genera and species of several plant families, including Tamus, elsewhere. Widespread in Britain and continental Europe. Also recorded from the Channel Is.

Cnephasia incertana (Treitschke, 1835) [Lepidoptera: Tortricidae].

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