Diagnosis. Small to medium-sized (2.0-6.0 mm), often rather plump flies. Body coloration ranging from yellow, brown, grey, or greenish-black, or combinations of these, sometimes with distinct pattern. Body surface dull or (partly) shining. Head dichoptic in both sexes; 2 usually reclinate orbital bristles, vibrissae absent, postvertical setae convergent to cruciate. Wing with costal vein unbroken, membrane clear, yellowish tinged, partly clouded or with distinct pattern. Preapical dorsal seta on tibiae present.
Biology. Larvae as far as known saprophagous, some are facultative miners of decaying leaves, while others develop in decaying material in birds-nests. Larvae apparently consume micro-organisms or fungi associated with decay. Adults of most species can be found in the undergrowth of shady places, like damp woods, banks of streams, marshes etc. Adults of Homoneura are a dapted to drier circumstances.
General references. Papp (1984a [catalogue]), Papp & Shatalkin (1998 [general, key to genera]), Schacht et al. (2004 [keys to genera and species]), Shatalkin (2000 [general, keys to genera and species, catalogue]), Shewell (1987a [general, key to genera, Nearctic])
References to the local fauna. Beuk et al. (1993), Beuk & Belgers (2017), H. de Jong (2000b), H. de Jong & Beuk (2000b), Martinek & Van Zuijlen (1996), De Meijere (1907)
How to quote this page: Beuk, P.L.Th., 2023. Family Lauxaniidae. In: Beuk, P.L.Th. (Ed.): Checklist of the Diptera of the Netherlands, https://diptera-info.nl/news.php?fam=Lauxaniidae (date accessed: 25/04/2024).
NL: 53, 2?
B: 47
D: 46, 3?
UK: 56
World: 1500
LAUXANIIDAE
HOMONEURINAE
Homoneura Van der Wulp, 1891
biumbrata (Loew, 1847)
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 1
consobrina (Zetterstedt, 1847)
N; added by Beuk & Belgers (2017: 104)
interstincta (Fallén, 1820)
N; confirmed by Beuk & Belgers (2017: 104)
Note 2
mediospinosa Merz, 2003
N; misidentification pointed out by Merz (2003: 352)
= interstincta (Fallén, 1820): misident. sensu auct.
notata (Fallén, 1820)
N; confirmed as subnotata by Martinek & Van Zuijlen (1996: 57
Note 3
= subnotata Papp, 1978
patelliformis (Becker, 1895)
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 4
thalhammeri Papp, 1978
N; added by Beuk & Belgers (2017: 105)
LAUXANIINAE
Aulogastromyia Hendel, 1925
anisodactyla (Loew, 1845)
N
Calliopum Strand, 1928
aeneum (Fallén, 1820)
N
elisae (Meigen, 1826)
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 5
= nitens (Loew, 1858): misident., pro parte
geniculatum (Fabricius, 1805)
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 6
= nitens (Loew, 1858): misident., pro parte
simillimum (Collin, 1933)
N; added by Martinek & Van Zuijlen (1996: 57)
= aeneiventris (Fallén, 1820): misident.
tuberculosum (Becker, 1895)
N; first recorded as sordidum in original checklist (H. de Jong & Beuk, 2002b)
Note 7
= sordidum (Haliday, 1833): preocc.
= halidayi (Shatalkin, 2000)
N
Lauxania Latreille, 1804
cylindricornis (Fabricius, 1794)
N
Meiosimyza Hendel, 1925
= Lyciella Collin, 1948
affinis (Zetterstedt, 1847)
N
decempunctata (Fallén, 1820)
N
decipiens (Loew, 1847)
N
illota (Loew, 1847)
N
platycephala (Loew, 1847)
N
rorida (Fallén, 1820)
N
subfasciata (Zetterstedt, 1838)
N
Minettia Robineau-Desvoidy, 1830
subg. Frendelia Collin, 1948
longipennis (Fabricius, 1794)
N
subg. Minettia Robineau-Desvoidy, 1830
desmometopa (De Meijere, 1907)
T
fasciata (Fallén, 1826)
N; added as rivosa by Beuk et al. (1993: xxii)
Note 8
= rivosa Meigen, 1826
inusta (Meigen, 1826)
N
longiseta (Loew, 1847)
N
lupulina (Fabricius, 1787)
N
plumicornis (Fallén, 1820)
N
tabidiventris (Rondani, 1877)
N; confirmed by Beuk (2019b: 369)
Note 8
= fasciata (Fallén, 1826): misident. sensu auct.
tubifer (Meigen, 1826)
N
Note 9
= uncinata (De Meijere, 1907)
T
Nannomyza Frey, 1941
Note 10
basalis (Zetterstedt, 1847)
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 11
Pachycerina Macquart, 1835
pulchra Loew, 1850
N; added by Beuk & Belgers (2017: 106)
Peplomyza Haliday, 1837
litura (Meigen, 1826)
N
Poecilolycia Shewell, 1986
vittata (Walker, 1849)
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 12
Pseudolyciella Shatalkin, 1999
pallidiventris (Fallén, 1820)
N
stylata Papp, 1978
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 13
subpallidiventris Papp, 1978
N; first record
Note 13
Sapromyza Fallén, 1810
Note 10
albiceps Fallén, 1820
N
apicalis Loew, 1847
N
Note 14
intonsa Loew, 1847
N; added by Beuk (2019b: 370)
obscuripennis Loew, 1847
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Note 15
obsoleta Fallén, 1820
N
Note 16
= obtusa Collin, 1948: misident. sensu H. de Jong & Beuk, 2002b
setiventris Zetterstedt, 1847
added by Dek (2022: 78)
sexpunctata Meigen, 1826
N
simplicior Hendel, 1908
N
= simplex Loew, 1847: preocc.
= setiventris Zetterstedt, 1847: misident. sensu De Meijere, 1907
viciespunctata Czerny, 1932
N; added by Beuk & Belgers (2017: 107)
zetterstedti Hendel, 1908
N; first recorded in original checklist (H. de Jong & Beuk, 2002b)
Previously recorded material under the name interstincta was presumed to belong to mediospinosa (= interstincta sensu auct.) (see Merz, 2003). Most of the checked material under interstincta indeed belonged to the new species or was refered to other species, but did not belong to the true interstincta. However, Beuk & Belgers (2017) examined recently collected material belonging to H. interstincta, so the species is maintained on the list.
Note 3
The misinterpretation of H. notata by Papp (1978a) was pointed out by Merz (2003: 355). So far, recently confirmed material all belonged to H. subnotata which was shown to be a junior synonym of H. notata. Older material still needs to be checked to see whether H. dilecta (= H. notata sensu Papp, 1978) is indigenous or not.
Note 4
Material examined: GELDERLAND: Kotten (1 [f]: 8-11.vi.1993, leg. C.J. Zwakhals MT [BEUK]); LIMBURG: Sint Pietersberg (1 [m]: 6.viii.1991, leg. B. van Aartsen MT [BEUK]; 1 [m]: 8.vii.1994, leg. B. van Aartsen [BEUK]), det. P.L.Th. Beuk.
Material examined: GELDERLAND Wageningen (1 [m]: 5.vii.1951, leg. J. de Goede [LUW]); NOORD-HOLLAND: Hilversum (1 [f]: 28.vi.1909, leg. J.C.H. de Meijere [LUW]; 1 [f]: 30.v.1912, leg. J.C.H. de Meijere [LUW]), det. P.L.Th. Beuk.
Note 7
Synonymy established and transferred from Sapromyza to Calliopum by Ebejer (2019: 42).
Note 8
Merz (2004) revised the Minettia fasciata group and found that the true M. fasciata is actually the senior synonym of M. rivosa. Minettia fasciata sensu auct. should be named M. tabidiventris (Rondani, 1877). It appears this confusion arose with Collins publication on the British Lauxaniidae. Consequently, it seems probable that Dutch records before Collins publication may indeed belong to the true M. fasciata. The occurrence of Minettia tabidiventris has now been confirmed.
Note 9
M. uncinata is apparently closely related to M. tubifer and preliminary research indicates that it may well be identical. Pending a future publication about the matter, M. uncinata is here provisionally placed as synonym of M. tubifer.
Note 10
Papp & Shatalkin (1998) elevated the previous subgenera of Sapromyza to generic status on account of the genus being paraphyletic. However, their claim was not substantiated in that publication but many recent catalogues have followed this classification.
Note 11
Material examined: GELDERLAND: Elburg (1 [m]: 30.vi.1992, leg. B. van Aartsen MT [AARTSEN]; 1 [m], 2 [f][f]: 30.vi.1992, leg. B. van Aartsen MT [BEUK]; 1 [m], 1 [f]: 30.vi.1992, leg. B. van Aartsen MT [BEUK]; 1 [m], 1 [f]: 30.vi.1992, leg. B. van Aartsen MT [LUW]; 1 [m], 1 [f]: 30.vi.1992, leg. B. van Aartsen MT [RMNH]; 1 [m], 1 [f]: 30.vi.1992, leg. B. van Aartsen MT [BEUK]; 1 [m]: 30.vi.1992, leg. B. van Aartsen MT [ZUIJLEN]; 1 [m]: 15.vii.1992, leg. B. van Aartsen [BEUK]), Heerde (1 [m]: 15.vii.1992, leg. B. van Aartsen [BEUK]), Tongeren (1 [m]: 30.vi.1992, leg. B. van Aartsen [AARTS]; 1 [m]: 30.vi.1992, leg. B. van Aartsen [ZUIJLEN]), det. P.L.Th. Beuk.
Papp & Shatalkin (1998) elevated the previous subgenera of Sapromyza to generic level on account of the genus being paraphyletic. However, their claim was not substantiated in that publication but many recent catalogues have follwed this classification.
Note 12
Material examined: NOORD-BRABANT: Best (Achterste Broek, 1 [m]: 4.vi.1994, leg. P.L.Th. Beuk [BEUK]).
Note 13
Separation of these two species is sometimes difficult because there appear to be intermediates in mixed populations. Both 'typical' forms were observed. Material examined: DRENTHE: Boswachterij Norg (1 [m]: 30.v.1992, leg. P.L.Th. Beuk [BEUK]); FRIESLAND: Rijs (1 [f]: 28.v.1981, leg. H.J. Prijs [BEUK]); GELDERLAND: Epe (1 [m]: 2.vi.1994, leg. B. van Aartsen MT [RMNH]), Rijswijk (1 [m]: 19.vi.1993, leg. P.L.Th. Beuk [BEUK]); LIMBURG: Thorn (1 [m]: 11.x.1993, leg. T. Peeters [RMNH]); NOORD-BRABANT (1 [m]: 5.vi.1994, leg. P.L.Th. Beuk [RMNH]); NOORD-HOLLAND: Haarlem (Engelandlaan, 11 [m]: 25.viii.1997, leg. P.L.Th. Beuk [BEUK]).
Note 14
Chandler (1998a: 129) notes this is a homonym or synonym of Sylvia apicalis Robineau-Desvoidy, 1830 with Sylvia being preoccupied and without valid type-species designation.
To confirm the conspecificy of Meiosimyza obtusa with M. mihalyii Papp, 1978, the specimen recorded by H. de Jong & Beuk (2002b: ZUID-HOLLAND: Noordwijk (1 [m]: 14-30.v.1993, leg. E.J. van Nieukerken [BEUK]), det. P.L.Th. Beuk) was checked. It turned out this specimen actually belonged to S. obsoleta, a species of Sapromyza with a smaller presutural dorsocentral setae. A pair of presutural dorsocentral setae is normally indicative of Meiosimyza and similar genera and is usually absent in Sapromyza.
Note 17
Material examined: GELDERLAND: 't Harde (1 [m]: 14.vi.1989, leg. B. van Aartsen [BEUK]), det. P.L.Th. Beuk.
Note 18
This species represents a species of Homoneura but it's identity has not yet been established.
Note 19
Erroneously recorded as obtusa by H. de Jong & Beuk (2002b) but identification corrected by Beuk & Belgers (2017).
The latest revisions at different levels
The family introduction was last edited on 14-07-2017 15:10
Nannomyza was the last (sub)genus to be edited on 14-07-2017 12:03
Sapromyza setiventris was the last (sub)species to be edited on 03-01-2023 18:31