Review of genera of Sciomyzidae (Diptera: Acalyptratae) from China, with new records, synonyms, and notes on distribution
Author
Li, Zhu
Author
Yang, Ding
Author
Murphy, William L.
text
Zootaxa
2019
2019-08-13
4656
1
71
98
journal article
26034
10.11646/zootaxa.4656.1.3
ff6435ca-1b33-499a-9f10-549fdff776c5
1175-5326
3366715
DAB5A006-2872-43FB-AE95-9B3D9C0B65D0
3.
Pherbellia
Robineau-Desvoidy, 1830
(
Figs. 1, 8
,
35–38
,
67
)
Pherbellia
Robineau-Desvoidy, 1830: 695
.
Type
species
:
Pherbellia vernalis
Robineau-Desvoidy, 1830
(monotypy) [=
Sciomyza schoenherri
Fallén, 1826
].
Diagnosis
. Frons with 2 orbital seta. Prosternum bare. Propleural seta strong. Wing of most species hyaline without spots, of several species with reticulated pattern, and of a few species with infuscation.
Remarks
. Comprising 95 described species (with 4 described subspecies),
Pherbellia
is the largest genus of
Sciomyzidae
. Species diversity is highest in the Palearctic Region, with 50 species, of which 42 are restricted to the Palearctic Region, with the range of 1 species,
Pherbellia cinerella
(
Fallén, 1820
)
, extending into the Oriental Region. The next highest species diversity is found in the Nearctic Region, with 32 species.
Before our study, only 5 species (including 1 subspecies) of
Pherbellia
were known from the Oriental Region:
P. causta
(Hendel, 1913)
[=
Hendel, 1913b
],
P. cinerella
,
P. javana
(
Meijere, 1919
)
,
P. nana reticulata
(
Thomson, 1869
)
, and
P. terminalis
(
Walker, 1858
)
, and only 6 species (including 1 subspecies) of
Pherbellia
were known from
China
:
P. brevistriata
,
P. causta
,
P. griseola
,
P. nana reticulata
,
P. orientalis
, and
P. terminalis
(
Knutson 1977
; Rozkošný &
Elberg 1984
;
Rozkošný 1987
;
Rozkošný & Knutson 1991
;
Li, Yang & Gu 2001
). The
type
localities of 3 of these species are in
China
:
P. nana reticulata
, from Kwangtung (
Guangdong Province
);
P. causta
, from
Taiwan
; and
P. orientalis
, from Harbin (
Heilongjiang Province
).
As a result of our study, at least 15 species of
Pherbellia
are now known from
China
, from both the Palearctic and Oriental Regions.
Pherbellia brevistriata
Li, Yang & Gu 2001
was described as a new species. Examination of additional specimens during this study convinced us that
P. brevistriata
is identical to
P. nana reticulata
; thus
P. brevistriata
becomes a junior synonym of
P. nana reticulata
.
FIGURES 1–8. Characters and morphological terms for the family
Sciomyzidae
(I).
1.
Pherbellia albocostata
(
Fallén, 1820
)
, lateral view of thorax.
2.
Colobaea eos
Rozkošný & Elberg, 1991
, lateral view of thorax.
3.
Colobaea
sp., wing.
4.
Sepedon spinipes
(
Scopoli, 1763
)
, wing.
5.
Ditaeniella grisescens
(
Meigen, 1830
)
, foretibia.
6.
Sciomyza dryomyzina
Zetterstedt, 1846
, foretibia.
7.
Ditaeniella grisescens
(
Meigen, 1830
)
, frons.
8.
Pherbellia schoenherri
(
Fallén, 1826
)
, frons.
Abbreviations:
a orb s = anterior orbital seta; A
2
= anal vein 2; CuA
1
= anterior cubitus vein 1; CuA
2
+A
1
= anterior cubitus vein 2+ anal vein 1; dpr s = dorsal preapical seta; f cx = forecoxa; M
1+2
= medial vein 1+2; p orb s = posterior orbital seta; prpl s = propleural seta; R
1
= radial vein 1; R
2+3
= radial vein 2+3; R
4+5
= radial vein 4+5; Sc
=
subcosta.
FIGURES 9–16. Characters and morphological terms for the family
Sciomyzidae
(II).
Pherbellia ditoma
Steyskal, 1956
is unique among Palearctic species of
Pherbellia
in having 2 stump veins on M
1+2
. The original description (
Steyskal 1956
) was based on a male from Andong,
Korea
(in the Palearctic Region). During our study we determined
1 male
P. ditoma
from
Jiangxi
,
1 male
from
Zhejiang
, and
1 female
from
Inner Mongolia
. Located in the south of
China
,
Jiangxi
and
Zhejiang
are typical Oriental Region areas. Thus, in addition to being found in the Palearctic Region (
Vala
et al
. 2012
), our study shows for the first time that
P. ditoma
also is found in the Oriental Region. During our study we discovered
1 female
of
P. ditoma
(
Fig. 35
), the first female specimen known of this species, from
Inner Mongolia
.
Pherbellia orientalis
Rozkošný & Knutson, 1991
was described as a new species on the basis of
1 female
from Harbin,
Heilongjiang Province
, in the north of
China
(Palearctic Region). During our study we determined
4 males
and
3 females
from Yueyang,
Hunan Province
, in the south of
China
. The male of this species (
Fig. 36
) was previously unknown. We also report here the first occurrence of this species in the Oriental Region.
Pherbellia schoenherri
(
Fallén, 1826
)
is one of the few species in this genus with a reticulated wing pattern (
Fig. 38
). Two described allopatric subspecies are known:
P. s.
schoenherri
(
Fallén, 1826
)
from the Palearctic Region and
P. s. maculata
(
Cresson, 1920
) from the Nearctic Region. Collectively, this species (including both subspecies) was known previously from only the Holarctic Region (
Vala
et al
. 2012
,
2013
). During our study we identified
2 males
and
1 female
of this species from
Beijing
and
2 males
and
1 female
of this species from
Yunnan
. The specimens from
Yunnan
represent the first record of
P. schoenherri
(
P. s.
schoenherri
) from the Oriental Region. Only 2 species in this genus,
P. schoenherri
and
P. cinerella
, are known from both the Palearctic and Oriental Regions.