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CUPRESSOCYPARIS. [Cupressaceae]

Cupressocyparis leylandii is treated as X Cuprocyparis leylandii by Stace (2010).

See CUPROCYPARIS.

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

1a > Leaf-miner: Oviposition on a young shoot. The larva penetrates a leaf, empties it, leaves it, often by making another hole in the epidermis, and starts a new mine. Older larvae bore in a twig. Pupation external. Mines twigs rurn brown and are dropped.

On Chamaecyparis, Cupressocyparis, Juniperus and Thuja in Britain and elsewhere. Widespread in Britain and continental Europe.

Argyresthia trifasciata Staudinger, 1871 [Lepidoptera: Yponomeutidae]

1b > Leaf-miner: During autumn the larva mines a mere 9-12 leaves - the damage is quite inconspicuous. Hibernation occurs within the mine, and during mild days feeding may continue. After hibernation the larva lives as a borer, and empties 4-6 shoots, over a length of 0.5 - 2.5 mm, just below the tip of the shoot. The damaged shoots wilt and die off.

On Cupressaceae, but not yet on Cupressocyparis, in Britain and Chamaecyparis, Cupressocyparis, Juniperus and Thuja elsewhere.