Crustacea: Copepoda - Cerambycoidea.com

Xylota segnis (Linnaeus)* - Develops in decaying sap under freshly dead broad-leaved and
coniferous timber, in wet sawdust, sap runs, etc; also in silage and decaying potatoes.
Widespread in all sorts of woodland and scrub, also along hedgerows and in parks and
gardens; Britain & Ireland.
Xylota sylvarum (Linnaeus)* - Major larval development site is wet decaying roots of broadleaved
trees, larvae ascending, beneath bark, to pupate; also in rot-holes. Widespread
in old woods and wood pastures across Britain & Ireland..
Xylota tarda Meigen* - Nationally Scarce. Develops in sap-runs of aspen in Scotland; larval
habitat in England not known. Usually in damp situations in woodland, nearly always
where old trees are present. Thinly scattered across much of lowland England;
Scottish populations very restricted and scattered. Ireland.
Xylota xanthocnema Collin - Nationally Scarce. Larvae in rot-holes on various broad-leaves
and yew; usually in or near ancient woodland or wood pasture. Thinly scattered across
southern England, extending northwards as far as Yorkshire.
Pseudopomyzidae
Pseudopomyza atrimana (Meigen) - RDB1. Larvae possibly in dead wood - the adults have
been found in numbers over fallen trunks in Finland. Only added to GB list in 1983,
and known from three specimens: New Forest, Kent and Isle of Skye.
Micropezidae - The larvae of some species develop in rotten wood.
Rainieria calceata (Fallén) - RDB1. The larvae are assumed to live in decaying wood of
stumps and logs, with a preference for those with bark still attached; probably old
beeches and possibly oak; Windsor Forest, Burnham Beeches & sites in Surrey.
Tanypezidae
Tanypeza longimana Fallén - RDB2. Possibly associated with decaying wood, although
reared in laboratory on watermelon rind and pulp in USA. Usually in damp
broadleaved woodland, often by rivers or streams.
Strongylophthalmyiidae
Strongylophthalmyia ustulata (Zetterstedt) - RDB1. Larvae develop in thick wet decaying
cambial layers under bark of dead aspen stems in northern Scotland; only other GB
record a single adult at Monks Wood, Cambridgeshire; elsewhere in Europe known
from several countries to east.
Megamerinidae
Megamerina dolium (Fabricius) - Nationally Scarce. Larvae under bark of dead and dying
broadleaves, apparently predaceous or necrophagous. In GB confined to ancient
woodlands. Widespread across Europe, occurring in Germany & Russia.
Psilidae - Some species develop under the bark of trees.
Chyliza annulipes Macquart = fuscipennis (Robineau-Desvoidy) - Nationally Scarce. Larvae
develop in resinous wounds on conifers. Old records for some native pinewoods, but
now better known from commercial plantations. Widely recorded across England and
Wales; also in Speyside.
Chyliza leptogaster Panzer* =scutellata (Fabricius) - Larva of either this or C. nova have
been recorded under bark of 23 species of broadleaved trees on the Continent. Most
associations probably relate to this species which is commonly found on damaged
living trees. Larval feeding results in formation of phloem necroses. They were also
found in association with the ?non-British cambium-mining cecidomyiid Resseliella
quercivora (Mamaev).
Chyliza nova Collin* - Nationally Scarce. Records of this scarcer species were not separated
from C. leptogaster in the above research, and it appears that both species have
similar habits. There is also a separate record of C. nova reared from under bark of a
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