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The family Atelestidae includes small greyish
dusted species with body approximately 2.0-3.0 mm long, wing with
well-developed axillary lobe and alula, wholly covered with small
microtrichia, unforked vein R4+5, and a large anal cell, at least as
long as basal cells. The male genitalia are symmetrical and not
rotated. It is a monophyletic group of flies with four genera and only
a few recent species, originally classified within the cyclorrhaphous family Platypezidae (Atelestus), then as
genera of “uncertain systematic position” close to or in the paraphyletic family Empididae s. lato, and only very recently
(Chvála
1983) erected as a separate family in the
superfamily Empidoidea.
Of the four European species of the Atelestidae
which are listed in the first on-line version of the Fauna
Europaea,
and also in the recent unchanged version of
2007 (Chvála
2007), three species are listed in the recent version of the
checklist; all three are known in the both
Czech Republic
(with two species in Bohemia and three species in Moravia) and Slovakia.
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