Diagnosis. Small to large (6.0-14.0 mm) flies with strong build; many species strongly setose. Head with orthorrhaphous antennae consisting of three large segments; frons of female in many species with glossy black markings. Wing membrane generally hyaline. Legs slender and with hairs and short setae. Abdomen gradually tapering towards genitalia, conical in male, more oval-shaped in female. Larvae elongate and cylindrical, narrowing anteriorly and posteriorly, rather hard-bodied.
Biology. Larvae live in soil or dead wood and predacious on other insects (often larvae). Soil may range from very dry (Acrosathe, Thereva) to probably humid (Cliorisma, Pandivirilia). Adults usually are found on leafs (Thereva) or bare soils (Acrosathe, Dialineura).
General references. Van der Goot (1985c [key]), M.E. Irwin & Lyneborg (1981 [general]), Lyneborg (1989 [catalogue]), Majer (1997b [general, key to genera]).
References to the local fauna. Van der Goot (1963, 1982a, 1985c), Theowald (1952d).
How to quote this page: Goot, V.S. van der , & P.L.Th. Beuk, 2020. Family Therevidae. In: Beuk, P.L.Th. (Ed.): Checklist of the Diptera of the Netherlands, https://diptera-info.nl/news.php?fam=Therevidae (date accessed: 19/04/2025).
NL: 14
B: 16
D: 13
UK: 14
World: ± 815
THEREVIDAE
Acrosathe Irwin & Lyneborg, 1981
annulata (Fabricius, 1805)
N
Cliorismia Enderlein, 1927
ardea (Fabricius, 1794)
N
rustica (Panzer, 1804)
N; added by Van der Goot (1985c: 25)
Dialineura Rondani, 1856
analis (Linnaeus, 1761)
N
Pandivirilia Irwin & Lyneborg, 1981
caesia (Meigen, 1838)
N; added by Van der Goot (1985c: 25)
Thereva Latreille, 1796
cinifera Meigen, 1830
N
= subfasciata Schummel, 1839
handlirschi Kröber, 1912
N; added by Van der Goot (1985c: 29, 32)
lanata Zetterstedt, 1838
N; added by Van der Goot (1985c: 29, 31)
microcephala Loew, 1847
N; added by De Bree et al. (2019a: 119)
nobilitata (Fabricius, 1775)
N
plebeja (Linnaeus, 1758)
N
strigata (Fabricius, 1794)
N; added by Van der Goot (1982a: 9)
unica (Harris, 1780)
N
Note 1
= bipunctata Meigen, 1820
= neglecta Kröber, 1912: misident. sensu Theowald, 1952
valida Loew, 1847
N; added by Van der Goot (1982a: 9)
Deleted species
Thereva Latreille, 1796
fulva (Meigen, 1804)
Note 2
Notes
Note 1
Again added as neglecta by Theowald (1952d: 131).
Note 2
Van der Goot (1985c: 28, 31) could find no correctly identified material of this species.
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Thereva microcephala was the last (sub)species to be edited on 31-01-2020 09:40
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