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Acta Entomologica Musei Nationalis Pragae

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ISSN 0374-1036 (Print) 1804-6487 (Online)


Nearctic Anthomyzidae: a monograph of
Anthomyza
and allied genera (Diptera)
Jindřich ROHÁČEK
1)
Kevin N. BARBER
2)
1)
Slezské zemské muzeum, Nádražní okruh 31, CZ-746 01 Opava, Czech Republic; e-mail: rohacek@szm.cz
2)
Great Lakes Forestry Centre, Canadian Forest Service, Natural Resources Canada, 1219 Queen St. E., Sault
Ste. Marie, Ontario, P6A 2E5, Canada; e-mail: kevin.barber@canada.ca
Abstract.
Nearctic Anthomyzidae of the
Anthomyza
clade comprising the genera
Fungomyza
Roháček, 1999 (1 species),
Ischnomyia
Loew, 1863 (1 species),
Arg-
anthomyza
Roháček, 2009 (7 species) and
Anthomyza
Fallén, 1810 (18 species)
are monographed. A review of the history of taxonomic research of the Nearctic
Anthomyzidae and of the adult morphology are given. All included taxa are treated
systematically, with complete data on nomenclature, type material, taxonomy (diag-
noses and (re)descriptions, keys, illustrations of taxonomically important struc-
tures), relationships, biology and distribution. The concept of
Ischnomyia
is rede
ned
and its Nearctic species are revised and redescribed as are all those of
Anthomyza
;
species of the remaining two genera are reviewed.
Ischnomyia spinosa
Hendel, 1911
syn. nov., is a new junior synonym of
Arganthomyza vittipennis
(Walker, 1857)
comb. nov., the latter being resurrected from synonymy with
Ischnomyia
albicosta
(Walker, 1849), transferred to
Arganthomyza
and redescribed. The E. Palaearctic
species
I. barbarista
(Roháček, 2009) comb. nov. is excluded from the genus
Arg-
anthomyza
and transferred to
Ischnomyia
. Fifteen new species of
Anthomyza
are
described, viz.
A. oblonga
,
A. silvatica
,
A. pengellyi
,
A. mcalpinei
,
A. pullinotum
,
A. occidentalis
,
A. vockerothi
,
A. dichroa
,
A. gibbiger
,
A. orthogibbus
,
A. shewelli
,
A. gilviventris
,
A. furvifrons
,
A. vulgaris
,
A. equiseti
spp. nov. and remaining 3
species are redescribed, viz.
A. tenuis
(Loew, 1863),
A. variegata
(Loew, 1863)
and
A. concolor
(Thomson, 1869). One neotype (of
I. albicosta
) and 5 lectotypes
are designated. Species groups are rede
ned and rediagnosed within the genera
Arganthomyza
and
Anthomyza
, while the
Arganthomyza vittipennis
group and
Anthomyza tschirnhausi
group are newly established. The
rst modern key to all
Nearctic genera of Anthomyzidae is provided. Distributional patterns of species
studied are presented using a coarse measure of dissimilarity. Relationships of taxa
under study are discussed following a new phylogenetic hypothesis based on clad-
istic analysis of morphological data of all known species in the
Anthomyza
clade.
Key words.
Diptera, Anthomyzidae, biology, classi
cation, distribution, morpho-
logy, new combination, new species, new synonym, nomenclature, phylogeny,
taxonomy, Nearctic Region