The leafhopper subgenus Empoasca (Matsumurasca) from China (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini), with descriptions of three new species
Author
Qin, Dao-Zheng
Author
Zhang, Ya-Lin
text
Zootaxa
2008
1817
18
26
journal article
10.5281/zenodo.182926
d44a4413-7e45-4873-afe3-48195c76bf21
1175-5326
182926
Subgenus
Empoasca
(
Matsumurasca
) Anufriev
Empoasca
(
Matsumurasca
)
Anufriev, 1973
: 540
.
Type
species:
Empoasca diversa
Vilbaste, 1968
, by original designation.
Green to yellowish-green species. Body relatively robust. Anterior margin of crown roundly protuberant and continuous with outer margin of eyes, posterior margin broadly concave, anterior and posterior margins of crown subparallel, middle length of vertex less than width between eyes. Coronal suture distinct. Face broad, anteclypeal and frontoclypeal areas apparently swollen. Pronotum large, longer than crown. Scutoscutellar sulcus distinct. Forewing with 2nd apical cell slightly broadening towards apex; c and r cells nearly equal in width, narrower than m and cua cells; veins
RP
, MP’ arise from r cell and MP”+CuA’ from m cell, 3rd apical cell stalked or triangular, 4th apical cell shortest.
Abdominal apodemes well developed, parallel sided. Male pygofer elongated, with rigid macrosetae on each side of pygofer lobe; ventral appendage present. Subgenital plate far exceeding pygofer, base prominently broadened and triangularly protruded basolaterad, lateral macrosetae forming an irregular double row merging into a single row distally, reaching apex of plate, short marginal microsetae occupying almost half length of anterior margin. Paramere serrate apically, setae and sensory pits basad of apical serrations. Connective lamellate. Aedeagus with preatrium long, dorsal apodeme absent or undeveloped. Anal tube process developed or not.
Discussion:
Anufriev (1973)
in his original description of the subgenus states that “some Oriental species of the genus, in particular some mentioned in Linnavuori’s paper (1960), may perhaps be included in the subgenus
Matsumurasca
too”. Linnavuori (1960) reported 20 species of
Empoasca
from
Micronesia
. However, some of these species, including
macarangae
Metcalf
and
fuscovitta
Metcalf
have been transferred to the genus
Austroasca
(
Dworakowska, 1971
)
;
boninensis
(Matsumura)
has been transferred to
Austroasca
(
Jacobiasca
) (
Dworakowska, 1972
)
.
Empoasca sesuvii
Linnavuori
has been transferred to
Sundapteryx
(
Dworakowska, 1970
)
, but
Sundapteryx
was later regarded as a synonym of
Amrasca
(
Dworakowska & Viraktamath, 1975
)
, this species should be excluded from the subgenus
Matsumurasca
because it has the subgenital plate narrow basally. For the same reason,
Empoasca esakii
Linnavuori
,
crenulata
Linnavuori
,
dentistylus
Linnavuori
,
xanthopus
Linnavuori
,
pitiensis
Metcalf
and
yona
Metcalf
should also be excluded from subgenus
Matsumurasca
.
Empoasca pipturi
Metcalf
,
bipunctulata
Metcalf
,
barringtoniae
Metcalf
,
colorata
Linnavuori
,
morindae
Metcalf
also should be excluded from this subgenus as they lack the stalked or triangular 3rd apical cell of the forewing.
Empoasca nocturna
Linnavuori
is not member of the subgenus because all apical veins arise from the m cell.
Empoasca acuticeps
Linnavuori
should not be included in the genus because it lacks a ventral pygofer appendage.
Empoasca fumatipennis
Linnavuori
probably also should not be placed in the genus because it has the pygofer lobe strongly narrowing terminally and abdominal apodemes strongly diverging.
The remaning two species of
Empoasca
included by Linnavuori (1960) namely,
ngatpangensis
Linnavuori
and
puncticeps
Linnavuori
are also not members of the subgenus because the two species have the crown subangularly produced at the anterior margin, the pronotum small, in
puncticeps
the vertex nearly as long as pronotum and parameres not serrate at apex; and in
ngatpangensis
the ventral pygofer appendage free only in apical part and abdominal apodemes rather diverging.
As noted above, the authors describe below three new species in the subgenus.
Distribution
:
China
(Zhejiang, Hainan, Hunan, Sichuan, Fujian, Yunnan, Sichuan, Henan, Hubei, Gansu), USSR,
Korea
,
Japan
,
Vietnam
,
India
.