|
|
(Coleoptera, Diptera, Hymenoptera and Lepidoptera)
by
Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds
|
|
|
NOTHOFAGUS.
Rauli, Roble, Antarctic and Dombey's Beech. [Fagaceae]
|
Four
species of Nothofagus are recorded in Britain. All are introduced.
The hybrid N. obliqua x alpina is apparently native.
Two British miners are recorded on Nothofagus. |
Key for the identification of the known mines of British
insects (Diptera and non-Diptera) recorded on Nothofagus
|
1a > Leaf-miner: The mine is oval on Q. ilex (note - there may be several
mines in the leaf), and similar to P.
quercifoliella on deciduous oaks. It is between adjacent
veins on beech and hornbeam.
Small,
oval, lower-surface tentiform mine, 9-14 mm long, mostly between
two lateral veins. The lower epidermis with a single sharp fold
(sometimes forked near its end). Pupa in very flimsy cocoon, that
contains a bit of frass laterally and at the rear end. |
|
|
On Betula, Carpinus, Castanea, Fagus, Nothofagus, Quercus,
Malus, Ostrya and Prunus in Britain and Carpinus, Castanea,
Fagus, Quercus, Prunus and Tilia elsewhere. Widespread
in Britain, Ireland and continental Europe.
|
Phyllonorycter
messaniella (Zeller, 1846) [Lepidoptera: Gracillariidae]. |
1b > Leaf-miner: A narrow gallery, tending to follow veins of leaf. The early part
with linear frass. Oviposition
at the underside of the leaf, mostly close to a vein. The mine is
a long, very slender corridor; even towards the end hardly wider
than necessary to accomodate the growing larva. Frass in a narrow
central line. The shape of the mine differs somewhat between the
hostplants. In Carpinus the mine closely follows a heavy
vein over a long distance; also the mine tends to be somewhat shorter
and broader, and the frass often lies in a more diffuse line. The
mines in Corylus are not so strictly defined by the venation
and the frass line is narrower (Emmet, 1983a; Johansson et al.,
1990a). Sometimes it is difficult to separate the mines from those
of S. floslactella;
an additional difference then is that even in the very first part
of the corridor the frass of microtheriella lies in a narrow
line, while the frass of floslactella seems to fill the entire
corridor there. The pale golden larva lies venter-upwards in the
mine. Sometimes
there can be several larvae mining the same leaf. |
|
On Carpinus betulus, Corylus avellana, Nothofagus and Ostrya carpinifolia in Britain and Carpinus spp.
and Ostrya spp. elsewhere. Widespread in Britain, Ireland
and continental Europe.
|
Stigmella
microtheriella (Stainton, 1854) [Lepidoptera: Nepticulidae]. |
|