Crustacea: Copepoda - Cerambycoidea.com

Worcestershire/Gloucestershire, where it is found in low-lying areas with large old
willow Salix pollards in ancient field boundaries (P. Whitehead, pers. comm.) as well
as ancient wood pasture oaks Quercus.
Megatoma undata (L.) - Nationally Scarce B. A scavenger in the nests or burrows of other
insects, and in spider webs, in decaying wood in old trees, feeding on remnants of
insects, spider exuviae, etc; also known from bee-hives and bee burrows, where its
larvae feed on cast skins, pupae etc; rarely within human buildings. Adults have been
found at flowers, and have been observed feeding on cast aphid skins and even dead
cat fleas. Widespread in lowland England, although most frequent in south-east and
Midlands; Europe & Siberia.
Ctesias serra (F.) – Common Cobweb Beetle. [Nationally Scarce Category B]. Larvae
under loose webby bark, or in rotting trees or stumps of mainly broad-leaved, overmature
trees; it is found in insect galleries, in old fungus, around webs of tube- and
sheet-web building spiders, where it apparently feeds on dead insects and woodlice
which accumulate near the webs; it has also been recorded attacking the immature
stages of various moths including the egg masses. Adults have been collected at the
fermenting sap of an oak Quercus tree infested with goat moth Cossus. Widespread
in lowland Britain, but scarcer in the west and only a few sites in southern Scotland; a
relatively mobile species, occurring anywhere there are mature trees, e.g. old parks,
woodlands, wood pastures, hedgerows etc, and identified from nearly 150 10km
squares.
Trinodes hirtus (F.) - RDB3. Adults and larvae amongst webs of tube- and sheet-web
building spiders beneath loose dry bark on large ancient trees, mainly of oak Quercus,
where they feed on the dead remains of insects and spider exuviae. Adults have been
found at blossom and on foliage. Relict old forest species of lowland England;
Europe, Algeria, Caucasus & Turkmen.
Bostrichidae - False Powder-post Beetles. Developing in dead hard timber continuously
until interior reduced to powder.
Bostrichus capucinus (L.) – Extinct. Develops in dead oak Quercus; last recorded in wild in
Britain in early C20th.
Lyctus brunneus (Stephens)* - Nationally Scarce [no official status]. Adults mate at dusk or
later immediately after emergence; females live c.6 weeks, males c.2-3; strong flier &
attracted to light; oviposition 2-3 days after mating, in hardwood timbers; ovipositor
penetrates wood and 1-3 eggs laid in lumen of a xylem vessel; larvae excavate tunnels
in surrounding tissue; high moisture content to wood required; pupates just beneath
outer surface; life cycle usually 1 year in Britain. In southern Europe in oak Quercus
woods, and may have a relict distribution in northern old forest sites. Commonest of
family in Britain but still very scarce; cosmopolitan.
Lyctus cavicollis LeConte – Naturalised
Lyctus linearis (Goeze)* - Nationally Scarce B. Usually found on fresh oak Quercus palings;
it develops in dead sapwood of oak, beech Fagus & ash Fraxinus; formerly more
frequent then Lyctus brunneus.
Lyctus planicollis LeConte – Naturalised.
Lyctus sinensis Lesne – Naturalised. Established in some timber yards and occasionally
found in the wild.
Anobiidae - Most live in dead wood.
Hedobia (Ptinomorphus) imperialis (L.)* - Nationally Scarce B. Has been reared from dead
stems of Rosa and hawthorn Crataegus; at least 2 year development; England &
Scottish Borders (Lanarkshire & Roxburghshire).
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