Diagnosis. Small (2.0-4.5 mm) and rather slender flies; body yellowish, reddish brown or black. Head relatively rounded; only one pair of orbital setae; no postocellar setae in genera occurring in the Netherlands. Thorax with pre- and postsutural setae (1 + 2(3)). Wings long and slender, more or less distinctly maculated; costa with subcostal break. Tibiae without dorsal preapical setae. Abdomen unicolorous or maculated.
Biology. Adults are found in cereal fields, meadows, pastures and hedges. The larvae develop in the stems of Graminae and cause damage called 'dead heart'. A few species are of economic importance in agriculture and some of them have numerous host plants.
References to the local fauna. Smit (2001b), Van der Wulp & De Meijere (1898), Van Zuijlen (1996g).
How to quote this page: Zuijlen, J.W.A. van, 2001. Family Opomyzidae. In: Beuk, P.L.Th. (Ed.): Checklist of the Diptera of the Netherlands, https://diptera-info.nl/news.php?fam=Opomyzidae (date accessed: 09/05/2025).
NL: 14
B: 9
D: 14
UK: 17
World: 56
OPOMYZIDAE
Geomyza Fallén, 1810
apicalis (Meigen, 1830)
N
balachowskyi Mesnil, 1934
N
= combinata (Linnaeus, 1767): misident. sensu auct.
= venusta (Meigen, 1830): misident. sensu Van der Wulp & De Meijere, 1898
breviseta Czerny, 1928
N; will be formally added by Van Zuijlen (in prep.)
hackmani Nartshuk, 1984
N; will be formally added by Van Zuijlen (in prep.)
majuscula (Loew, 1864)
N; will be formally added by Van Zuijlen (in prep.)
martineki Drake, 1992
N; will be formally added by Van Zuijlen (in prep.)
= majuscula (Loew, 1864): misident. sensu J.T. Smit, 2001
nartshukae Carles Tolrá, 1993
N; will be formally added by Van Zuijlen (in prep.)
subnigra Drake, 1992
N; will be formally added by Van Zuijlen (in prep.)
tripunctata Fallén, 1823
N
Opomyza Fallén, 1820
florum (Fabricius, 1794)
N
germinationis (Linnaeus, 1758)
N
lineatopunctata von Roser, 1840
N; will be formally added by Van Zuijlen (in prep.)
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