Crustacea: Copepoda - Cerambycoidea.com

holes in living beech, also Populus elsewhere in Europe; East Anglia; across southern
half of Europe.
Chalcosyrphus eunotus (Loew) - RDB2. Develops in sap-runs and other accumulations of
sap in bark cavities. Adults tend to be associated with fallen deadwood lying semisubmerged
in small streams. A rare species, confined to the rain-shadow country of
the south-west, from Dorset to Denbighshire.
Chalcosyrphus nemorum (Fabricius)* - An early successional wood decay species of wet
woodlands. Larvae under bark of fallen trunks and branches either in a layer of
decaying sap or in moist decaying bark and sapwood. Widespread in Britain but very
local throughout its range; Ireland.
Criorhina asilica (Fallén) - Nationally Scarce. Develops in decayed heartwood debris in the
base of hollowed trees, probably mainly beech; adults at hawthorn blossom.
Widespread in England and Wales but scarce within this range.
Criorhina berberina (Fabricius)* - Eggs are mainly laid in bark crevices around the base of
stumps and on the undersides of leaves of plants growing on or next to stumps,
particularly beech; the larvae develop in wet heart-rot within the tree roots; later
puparia are formed in leaf litter around the stumps. The species also develops in wet
rot-holes in tree trunks. The adults require blossom for nectaring, especially
hawthorn. Mainly associated with ancient woodlands and wood pastures; widespread
over much of England, Wales & Ireland, also in southern Scotland.
Criorhina floccosa (Meigen)* - Larvae develop in wet decaying wood debris in cavities and
roots of elm, sycamore and beech. A scarce woodland species, although extending out
along adjoining hedgerows where available. Widespread but scarce.
Criorhina ranunculi (Panzer)* - Nationally Scarce. Develops in moist decaying heartwood
in bases and roots of old trees and stumps, especially beech. Adults usually found at
blossom of early spring-flowering shrubs. Primarily an old woodland species.
Widespread across England; Ireland; rare in Scotland.
Ferdinandea cuprea (Scopoli)* - The larvae mainly develop in sap-runs on oak and other
broad-leaved trees, but have also been found in other situations with semi-liquid
decaying material; puparia have been found around the roots of such trees. Mainly
ancient woodlands and wood pastures; widespread throughout much of Britain. Also
in Ireland.
Ferdinandea ruficornis (Fabricius) - Nationally Scarce. Develop in sap-runs in ancient
woodlands and wood pastures. Very sparsely scattered across lowland England.
Hammerschmidtia ferruginea (Fallén) - RDB1 & BAP Priority Species. Develops in
accumulations of decaying sap under the bark of recently dead mature aspen; two year
development; adult at flowers of rose and bird cherry; mainly Speyside, where
populations are very restricted and scattered.
Mallota cimbiciformis (Fallén) - Nationally Scarce. Larvae in water-filled rot-holes of
varying sizes and heights on a wide variety of small and large broad-leaves; puparia
occur just above in drier detritus. A species of relict ancient woodlands and wood
pastures, widely but sparingly across lowland England, but also known from North
Wales and the Clyde Valley woods.
Microdon analis (Macquart)* = eggeri Mik - Nationally Scarce. Breeds beneath bark on
well-decayed pine and birch logs or stumps on heathland, within nests of Formica and
other ants; larvae feed on ant larvae and pupae. Disjunct distribution: central southern
England and northern Scotland; Ireland.
Myathropa florea (Linnaeus)* - Develops in a wide range of wet decaying timber
microhabitats from rot-holes high in the canopy to decaying roots underground and
shallow pools of water on the bark of fallen trees; also in sap runs; not yet found
109