Crustacea: Copepoda - Cerambycoidea.com

Colydiidae - Cylindrical Bark Beetles. Mostly predatory.
Synchita humeralis (Fabricius) - Nationally Scarce B. Feed on fungus-colonised sappy bark
or timber, of birch Betula, hawthorn Crataegus, hazel Corylus, alder Alnus, and
especially beech Fagus; has been reared from Daldinia in long-established
birchwoods. Central and eastern England, with single records from Scotland and
Ireland.
Synchita separanda (Reitter) - RDB3. Feed on fungus-colonised sappy bark and wood,
mainly beech Fagus, but also sycamore Acer pseudoplatanus, where beetles common
in dark brown powdery smut-like fungus under thin bark. Southeast England.
Cicones undatus Guérin-Méneville - Associated with sooty bark disease on sycamore Acer
pseudoplatanus, caused by the ascomycete fungus Cryptostroma corticale. Very local
nationally, but common and widespread in the London area.
Cicones variegata (Hellwig) - Nationally Scarce A. Normally associated with encrustations
of the fungus Ustulina deusta on recently dead standing beech Fagus trunks; also on
hornbeam Carpinus. South and southeast England, as far west as New Forest and
Forest of Dean, and north to Huntingdon.
Bitoma crenata (Fabricius) - Mainly beneath bark on dead beech Fagus & oak Quercus when
in the early stages of decay and still sappy; also less frequently on birch Betula, horse
chestnut Aesculus, sycamore Acer pseudoplatanus; mostly in ancient wood pastures,
and especially so in the north and west. Very widespread over much of England,
excepting the far north and south west; very local in Wales.
Endophloeus markovichianus (Piller & Mitterpacher) - Extinct. Adults found under loose
bark on dead beech Fagus trunks. New Forest, old specimens only.
Langelandia anophthalma Aubé - RDB3. Soil dweller, decaying vegetable material, possibly
associated with tree roots.
Colydium elongatum (Fabricius) - RDB3. Under bark of various dead broad-leaved trees;
also in conifers on Continent; predator of Platypus & Xyloterus beetle larvae.
Increasing its distribution and abundance locally from mid 1990s, presumably in
response to expansion of range of Platypus (q.v.); status now in need of revision.
Aulonium trisulcum (Fourcroy) - Nationally Scarce A. Reputed to be a specialist predator of
larvae and pupae of Scolytus on elm Ulmus, although more likely to be a scavenger
exploiting the special conditions consequent upon the activities of developing elm
bark beetles. Probably introduced into Britain from the Continent in early C20, and
now widespread in the southeast, extending to Dorset, Dyfed and Leicestershire. A
night flier.
Pycnomerus fuliginosus Erichson* - Naturalised. Under bark of dead oak Quercus, sweet
chestnut Castanea, birch Betula, hornbeam Carpinus, beech Fagus; an Australian
import; very local, with concentrations in Hampshire/Surrey/Sussex border area,
Devon, Epping Forest; also established in N. Ireland.
Pycnomerus terebrans (Olivier) – Fossil. Most recently in Britain from Bronze Age in
Shropshire, Somerset Levels and London.
Teredus cylindricus (Olivier) - RDB1. Probably a predator; under bark of dead old oaks
Quercus, also sweet chestnut Castanea and other trees; in red-rot, often with brown
tree ant Lasius brunneus or anobiid beetles. Mainly known from Sherwood and
Windsor Forests.
Oxylaemus cylindricus (Panzer) – Extinct. Dead wood.
Oxylaemus variolosus (Dufour) - RDB3. Has been found in litter at base of tree stump, and in
the root pathogen fungus Collybia fusipes at the base of a red oak Quercus.
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