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The family Acroceridae is a small group of
medium-sized brachycerous flies, characterised by the enlarged,
bare, globose body, with a very small head concealed partly beneath
the large thorax. Wing usually clear, with very reduced venation,
and the large thoracic calypter, together with the globular body, is
the most significant feature. Rather rare flies in nature; the
larvae are endoparasites of spiders, developing in the abdomen or
the egg cocoons.
Only
34 species are known in Europe (Nartshuk
2007), and of these nine are listed in the present checklist; seven
species occur in the Czech Republic (six in Bohemia and three in
Moravia), and six species are known in Slovakia. No new records
are available in this new version of the checklist. A systematic
study of the Central European species, with keys to genera and
species, was published by Chvála (1980).
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