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number of species which are well documented on
the continent.
The species accounts for those Odonata recorded
from the Channel Islands but not from the rest of
Britain and Ireland are necessarily more brief, but
cover the same broad topics; these species are not
mapped. The accounts of immigrant and vagrant
species mention breeding behaviour only as far as
is relevant to the British and Irish occurrence of the
species. The next section discusses the likelihood of
non-resident species colonising Britain and Ireland,
and makes reference to other species, not yet
recorded here, which might possibly be overlooked,
or which could be expected to occur in future,
based on their biology and their European range.
References are not given for statements which are
referred to in standard works with good
bibliographies. Those references which are
included draw attention to some recent studies and
to work which may be unfamiliar to British and Irish
observers. Further details of the system adopted in
giving references appear in the chapter on
Literature and references.
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