|
Small (2.0-6.0 mm), yellowish to dark brown Nematocera. Head with
three ocelli; antenna with scape and pedicel short, flagellum with
14 segments. Thorax hump-backed, legs with long coxae, abdomen
narrow. Wings without dark markings, wing membrane covered with
macrotrichia. Sc ending in C or free, cross-veins R-M and M-Cu in a
straight vertical line. The larvae are found in decaying wood,
probably feeding on mycelia (Zaitzev
1994). The adults occur mainly in forest habitats in shaded
places alongside streams and on tree trunks.
The family Diadocidiidae belongs to the superfamily Sciaroidea, but
was formerly included in the Mycetophilidae. It is usually accepted
that this family contains only one genus, Diadocidia Ruthe,
1831. There are about 23 described extant species in the world (Papp
& Ševčík 2005,
Jaschhof & Jaschhof 2007),
six of which are known to occur in Europe (Chandler
2007,
Papp 2003); five species are listed in the present checklist –
five
from the Czech Republic (four in Bohemia, five in Moravia), and five from
Slovakia. Since the PCV2 (Košel
& Martinovský 1997), two species have been added to the Czech
Republic (one species for Bohemia, two for Moravia), and two species
have been added to the fauna of Slovakia (Ševčík
2001,
2004,
2006). The species composition of the Diadocidiidae in both the
Czech Republic and Slovakia is thus relatively well known.
The basic characteristics of the family were recently given by
Krivosheina (1988),
Søli et al. (2000)
and Zaitzev (1994).
The identification of the European species is possible using the
keys and figures by Laštovka and Matile (1972),
Papp (2003)
and Zaitzev (1994).
The nomenclature used in the present checklist follows that in the
Fauna Europaea (Chandler
2007).
|
