Norwegian Journal of Entomology - Norsk entomologisk forening

Lauxania minor Martinek, 1974
(Diptera, Lauxaniidae) in Norway and
Sapromyza obsoleta Fallén, 1820
(Diptera, Lauxaniidae) deleted from the Norwegian fauna
Lita Greve
INTRODUCTION
The subfamily Lauxaniinae (family Lauxaniidae,
Diptera) is quite diverse in Scandinavia, and
includes by far most of the species of Lauxaniidae
recorded from Norway. By now 38 species
of this subfamily have been published from
Norway, compared to 2 species of the subfamily
Homoneurinae see Greve & Merz (2003).
A new Lauxaniidae species from Norway was
identified while surveying material of the genus
Lauxania Latreille, 1804. Two species of the
genus Lauxania have so far been recorded from
Norway, the widely distributed L. cylindricornis
(Fabricius, 1794) and the rare L. albomaculata
Strobl, 1909 which has recently been recorded
from Norway (Greve & Merz 2003). Martinek
(1974) described a third species L. minor from
Central Europe, today placed in the subgenus
Callixania Papp, 1978. One male belonging to L.
minor was discovered in the present material.
Norw. J. Entomol. 53, 83-84, 22 May 2006
Greve, L. 2006. Lauxania minor (Martinek, 1974) (Diptera, Lauxaniidae) in Norway, and
Sapromyza obsoleta Fallén, 1820 (Diptera, Lauxaniidae) deleted from the Norwegian fauna.
Norw. J. Entomol. 53, 83-84.
Lauxania minor Martinek, 1974 is recorded as a new species to Norway from Bjørkås, Asker
Akershus (AK). Material previously published as Sapromyza obsoleta Fallén, 1820, has been
examined and proved to be misidentified. S. obsoleta is therefore deleted from the Norwegian
fauna.
Key Words: Lauxania minor, Sapromyza obsoleta, Lauxaniidae, Diptera, Norway
Lita Greve, Zoological Museum, University of Bergen, P.O. Box 7800, N-5020 Bergen.
E-mail: lita.greve@zmb.uib.no
SUBFAMILY LAUXANIINAE
Lauxania (Callixania) minor Martinek, 1974.
AK Asker: Bjørkås (EIS 28), Malaise trap, 4
June – 2 July 1995, 1 ♀ leg. L.O. Hansen & O.
Hanssen.
L. minor Martinek has the characteristic extended
postpedicel which is also found in L. cylindricornis
(Fabricius). The antennae of L. minor situated on
a pronounced edge at the middle of the height of
the eyes, without any swelling below the antennae.
In L. cylindricornis there is a distinct swelling
below the antennae. There are clear differences
in the genitalia of both sexes which are figured
in Martinek (1974). Dr. B. Merz, Genevé has
confirmed my determination of this specimen.
The record of L. minor is the first from
Fennoscandia and Denmark, and L. minor has not
been recorded from other parts of Northwestern
Europe. The specimen is deposited in the
Zoological Museum, University of Bergen.
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