First records of the genera Chagria and Davmata from China (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), with descriptions of two new species


Cao, Y.; Huang, M.; Zhang, Y.

Zootaxa 3023 (13 Sep): 61-67

2011


Two oriental genera of Erythroneurini, Chagria Dworakowska and Davmata Dworakowska, are reported from China for the first time, each based on a new species: Chagria camptoprocessa and Davmata falcata spp. nov. Illustrations and keys to males for each genus are provided.

Zootaxa
3023:
61-67
(2011)
ISSN
1175-5326
(print
edition)
www.mapress.com/zootaxa/
Article
ZOOTAXA
Copyright
2011
Magnolia
Press
ISSN
1175-5334
(online
edition)
First
records
of
the
genera
Chagria
and
Davmata
from
China
(Hemiptera:
Cicadellidae:
Typhlocybinae:
Erythroneurini),
with
descriptions
of
two
new
species
YANGHUI
CAO,
MIN
HUANG
&
YALIN
ZHANG'
Key
Laboratory
of
Plant
Protection
Resources
and
Pest
Management,
National
Ministry
of
Education,
Entomological
Museum,
P.
0.
Box
5.5
#
,
Northwest
A&F
University,
Yangling,
Shaanxi
712100,
China.
E-mail:
yalinzh@yahoo.com.cn,
cao_yanghui@yahoo.com.cn,
huangmin@nwsuafedu.cn
`Corresponding
author
E-mail:
yalinzh@
yahoo.com.cn
Abstract
Two
oriental
genera
of
Erythroneurini,
Chagria
Dworakowska
and
Davmata
Dworakowska,
are
reported
from
China
for
the
first
time,
each
based
on
a
new
species:
Chagria
camptoprocessa
and
Davmata
falcata
spp.
nov.
Illustrations
and
keys
to
males
for
each
genus
are
provided.
Key
words:
Hemiptera,
Cicadomorpha,
leafhoppers,
morphology,
taxonomy,
China
Introduction
Dworakowska
(1994)
established
the
erythroneurine
leafhopper
genus
Chagria
based
on
the
type
species,
Typhlo-
cyba
sikkimensis
Datta
&
Ghosh
(1973)
from
Sikkim.
The
genus
Davmata
was
established
by
Dworakowska
(1979)
with
type
-species
Davmata
neka
Dworakowska
from
Vietnam.
So
far,
there
have
been
no
further
reports
on
these
two
genera.
In
this
paper,
Chagria
and
Davmata,
are
reported
for
the
first
time
from
China,
and
two
new
spe-
cies,
C.
camptoprocessa
and
D.
falcata
spp.
nov.,
have
been
studied
and
illustrated.
Keys
to
species
for
both
genera
are
provided.
Material
and
methods
All
the
specimens
examined
are
deposited
in
the
Entomological
Museum,
Northwest
A&F
University,
Yangling,
Shaanxi,
China
(NWAFU).
Morphological
terminology
used
follows
Young
(1952)
except
for
the
nomenclature
of
the
wing
following
Dworakowska
(1993).
Habitus
photos
were
taken
by
using
a
Scientific
Digital
micrography
system
equipped
with
an Auto
-montage
imaging
system
and
a
Q
-IMAGING
Retiga
2000R
digital
camera
(CCD)
and
compressed
into
final
images.
Abdomens
and
genitalia
were
removed
from
specimens
and
cleared
in
10%
KOH
solution
heated
for
1-2
minutes.
Cleared
material
was
then
rinsed
in
water
and
stored
in
glycerine.
A
Nikon
SMZ1500
compound
microscope
was
used
for
viewing
and
an
Olympus
BH-2
stereoscopic
microscope
for
draw-
ing.
Chagria
Dworakowska,
1994
Chagria
Dworakowska,
1994:
113
Type
-species:
Typhlocyba
sikkimensis
Datta
&
Ghosh,
1973,
original
designation
Accepted
by
C.
Dietrich:
11
Aug.
2011;
published:
13
Sep.
2011
61
Diagnosis.
Body
robust.
Crown
with
anterior
margin
weakly
produced,
head
slightly
narrower
than
pronotum,
cor-
onal
suture
obvious.
Face
slightly
convex
in
profile,
anteclypeus
narrowing
ventrally.
Pronotum
with
hind
margin
straight,
twice
as
long
as
vertex.
Fore
wing
with
1st
and
3rd
apical
cells
broad,
4th
apical
cell
shorter
than
half
length
of
3rd;
AA
vein
present.
Hind
wing
venation
as
usual
for
Erythroneurini,
subcostal
vein
absent.
Abdominal
apodemes
well
sclerotized.
10th
segment
of
abdomen
with
narrow
and
heavily
sclerotized
semi
-ring
bearing
wedge
-like
anal
tube
append-
age
apically.
Genital
capsule
rounded,
well
pigmented
basally
and
ventrally,
with
spiny
sculpture
on
distal
mem-
brane;
pygofer
dorsal
appendage
extended
from
the
pygofer
wall,
connected
with
semi
-ring
and
ligments.
Subgenital
plate
elongate,
exceeding
pygofer
side,
narrowing
terminally;
apical
part
twisted
cephalad
or
laterad;
with
2-3
macrosetae
in
middle
and
differentiated
microsetae
marginally:
rigid
microsetae
distally
and
subapically,
long,
fine
setae
medially,
peg
-like
microsetae
subbasally.
Style
short,
narrowed
apically,
central
part
broad,
preapi-
cal
lobe
indistinct.
Connective
large
and
lamellate
with
central
lobe
distinct.
Aedeagal
shaft
long,
tubular,
with
pair
of
basal
processes
approximately
as
long
as
shaft;
gonopore
subapical
and
ventral.
Checklist
to
species
of
the
genus
Chagria
Chagria
sikkimensis
(Datta
&
Ghosh),
1973:
418;
Dworakowska,
1994:
114,
Figs.
310-326
C.
camptoprocessa
sp.
nov.
Key
to
males
of
the
genus
Chagria
1
Aedeagus
with
basal
processes
straight
(Fig.
11)
C.
sikkimensis
(Datta
&
Ghosh)
Aedeagus
with
basal
processes
apically
curved
laterad
(Figs.
27-29)
C
camptoprocessa
sp.
nov.
Chagria
camptoprocessa
sp.
nov.
(Figs.
1-3,
12-30)
Description.
Ground
color
brownish.
Eyes
blackish,
coronal
suture
darkened
basally,
vertex
with
two
large
black
patches
on
the
anterior
margin,
and
their
surrounding
areas
sordid
whitish
(Fig.
1).
Face
with
frontoclypeal
area
and
anteclypeus
ochre
-yellow,
lorae
light
brown,
genae
sordid
whitish
(Fig.
3).
Pronotum
brown,
somewhat
ochre
-
red
medially
and
along
posterior
margin.
Basal
triangles
black;
scutoscutellar
sulcus
dark,
deeply
incised.
Fore
wing
whitish
-brown,
semitransparent,
brochosome
field
ochre
-yellow
(Fig.
1).
Abdominal
apodemes
reaching
posterior
margin
of
4th
sternite
(Fig.
14).
Pygofer
side
well
sclerotized
at
basal
half
and
lower
basal
angle,
caudal
part
of
lobe
with
spiny
sculpture
(Fig.
15);
pygofer
dorsal
appendage
small
(Fig.
17),
connected
with
semi
-ring
and
ligments
(Fig.
16).
Subgenital
plate
with
apical
part
twisted
laterad,
with
several
rigid
microsetae
distally,
subbasal
part
with
fewer
and
smaller
peg
-like
setae
than
those
of
the
C.
sikkimensis
(Figs.
19,
20);
style
broadened
subapically,
with
some
sensory
pits
subapi-
cally
(Figs.
21-23).
Connective
as
in
C.
sikkimensis,
but
with
longer
manubrium
(Figs.
24,
25).
Aedeagal
shaft
as
in
C.
sikkimensis,
but
basal
processes
a
little
longer
and
apical
part
curved
laterad
(Figs.
27-29).
Measurement.
Male
length
3.3-3.4mm
(including
wing).
Material
examined.
Holotype:
(3,
CHINA,
Yunnan
Prov.,
Jinghong,
Bubeng,
at
light,
4
September
2010,
coll.
Zhang
Meng;
Paratypes:
2(3(3,
same
data
as
holotype.
Diagnosis.
This
new
species
is
extremely
similar
to
C.
sikkimensis,
but
lacks
the
two
blackish
spots
mesad
of
basal
triangles
(Fig.
1);
apex
of
subgenital
plate
twisted
not
cephalad
but
laterad
(Fig.
19);
subgenital
plate
with
fewer
and
smaller
peg
-like
microsetae
subbasally
(Fig.
20);
style
with
distinctly
broader
subapical
part
and
central
part
(Figs.
21,
22);
connective
with
obviously
longer
manubrium
(Figs.
24,
25);
aedeagal
basal
processes
with
broader
base
when
viewed
in
profile
(Fig.
26),
curved
laterad
apically,
total
length
slightly
greater
(Figs.
27-29).
Discussion.
Differences
between
C.
camptoprocessa
and
C.
sikkimensis
are
slight,
but
stable.
Usually
the
seto-
sity
of
the
subgenital
plate,
shape
of
the
style
and
connective,
and
shape
and
length
of
the
aedeagal
processes
are
stable
at
specific
level
in
Erythroneurini,
and
may
therefore
be
used
for
species
discrimination.
Specimens
from
62
Zootaxa
3023
©
2011
Magnolia
Press
CAO
ET
AL.
Bubeng
are
nearly
invariant
in
the
characters
listed
above,
and
these
distinguish
C.
camptoprocessa
from
the
type
species.
The
differences
in
the
connective
and
aedeagal
processes
are
particularly
distinctive.
i
~•I
r
'
S
FIGURES
1-6.
1-3,
Chagria
camptoprocessa
sp.
nov.;
4-6,
Davmata
falcata
sp.
nov.;
1,
4,
dorsal
view;
2,
5,
lateral
view;
3,
6,
face.
GENERA
CHAGRIA
AND
DAVMATA
FROM
CHINA
Zootaxa
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2011
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63
17
16
la
o.
15
'
qr
-------
-
t
20
19
12
a
s
13
7
18
30
/77
21
22
8
23
.
i t
27
28
29
11
-----
-
14
24
25
10
I ,
I
r
I
26
FIGURES
7-30.
Chagria
sikkimensis
(Datta
&
Ghosh,
1973):
7-11
(after
Dworakowska,
1994).
7,
subgenital
plate,
dorsal
view;
8,
style,
dorsal
view;
9,
style,
lateral
view;
10,
connective,
dorsal
view;
11,
aedeagus,
caudal
view.
Chagria
camptopro-
cessa
sp.
nov.:
12-30.
12,
forewing;
13,
hind
wing;
14,
abdominal
apodemes;
15,
genital
capsule;
16,
anal
tube
appendage,
semi
-ring,
pygofer
dorsal
appendage
and
ligament;
17,
pygofer
dorsal
appendage;
18,
subgenital
plate,
paramere,
connective
and
the
9th
sternite,
dorsal
view;
19,
subgenital
plate,
dorsal
view;
20,
marginal
microsetae
of
subgenital
plate
subbasally;
21,
style,
dorsal
view;
22,
style
of
paratype,
dorsal
view;
23,
style,
lateral
view;
24,
connective,
dorsal
view;
25,
connective
of
para-
type;
26,
aedeagus,
lateral
view;
27,
aedeagus,
caudal
view;
28-29,
aedeagus
of
paratype;
30,
apex
of
penis
stem,
caudal
view.
Etymology.
The
specific
epithet
is
derived
from
Latin
prefix
"campto-"
and
Latin
noun
"processa"
which
refers
to
the
bent
basal
processes
of
aedeagus.
64
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2011
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Press
CAO
ET
AL.
Davmata
Dworakowska,
1979
Davmata
Dworakowska,
1979:
44
Type
-species:
Davmata
neka
Dworakowska,
1979,
original
designation
Diagnosis.
Body
form
resembles
Tautoneura
Anufriev:
tiny,
length
1.8mm
to
2.1mm,
pale
to
yellow
-whitish.
Ver-
tex
produced
medially,
head
almost
as
wide
as
pronotum,
coronal
suture
present.
Face
slightly
convex
in
profile,
anteclypeus
broad.
Pronotum
in
mid
-length
shorter
than
twice
length
of
vertex.
Fore
wing
with
spots
and
patches,
3rd
apical
cell
broad,
4th
apical
cell
shorter
than
half
length
of
3rd;
AA
vein
absent.
Hind
wing
venation
as
usual
in
Erythroneurini,
subcostal
vein
absent.
Abdominal
apodemes
narrow
and
long.
Anal
tube
without
appendages.
Genital
capsule
weakly
sclerotized.
Pygofer
side
rounded,
with
several
mac-
rosetae
at
lower
basal
angle
and
numerous
gracile
microsetae
on
ventral
half
of
lobe;
pygofer
dorsal
appendages
well
sclerotized,
articulated
to
pygofer
side.
Subgenital
plate
slightly
exceeding
pygofer
side,
broadened
subba-
sally,
apical
part
narrowed
and
curved
outwards;
with
row
of
several
submarginal
macrosetae
and
row
of
thickened
marginal
microsetae
on
middle
part,
some
rigid
microsetae
and
some
small,
stout
microsetae
at
apex.
Style
varying
between
new
species
and
type
species,
preapical
lobe
distinct,
with
sensory
pits
or
papillae.
Connective
with
cen-
tral
lobe.
Aedeagal
shaft
asymmetrical,
situated
on
a
short
manubrium;
gonopore
subapical
and
ventral.
Note.
Discovery
of
the
new
species
described
below,
in
which
the
male
style
is
significantly
different
from
that
of
the
type
species,
suggests
that
interspecific
variation
in
the
style
in
Davmata
parallels
that
of
the
related
genus
Tautoneura.
Checklist
to
species
of
the
genus
Davmata
Davmata
neka
Dworakowska,
1979:
46,
Figs.
359-370
D.
falcata
sp.
nov.
Key
to
males
of
the
genus
Davmata
1
Pygofer
dorsal
appendage
bifurcate
at
apex
D
neka
Dworakowska
Pygofer
dorsal
appendage
not
bifurcate
(Figs.
34)
D.
falcata
sp.
nov.
Davmata
falcata
sp.
nov.
(Figs.
4-6,
31-41)
Description.
Ground
color
pale
to
yellow
-whitish.
Eyes
brown,
vertex
with
short
streak
at
apex
and
two
patches
mesad
of
the
eyes
ochre
-yellow
(Fig.
4).
Face
pale
(Fig.
6).
Pronotum
with
large
orange
patch
medially,
and
pair
of
smaller
light
ochre
-yellow
sublateral
patches.
Basal
triangles
and
patch
on
scutellum
yellowish
-brown,
tip
of
scutellum
black
(Fig.
4).
Fore
wing
pale,
with
dark
brown
spots
and
ochre
-yellow
patches
(Fig.
4).
Abdominal
apodemes
almost
reaching
hind
margin
of
5th
sternite
(Fig.
33).
Pygofer
side
with
about
4
rigid
macrosetae
at
lower
basal
angle,
and
some
gracile
microsetae;
caudal
part
with
small
spiny
sculpture;
pygofer
dorsal
appendage
falcate
(Fig.
34).
Subgenital
plate
with
4-5
macrosetae
in
a
row
(Fig.
36).
Style
with
apical
part
finger
-like,
preapical
lobe
large,
with
some
sensory
papillae
(Fig.
37).
Connective
V-shaped
(Fig.
38).
Aedeagal
shaft
with
twisted
hook
-like
process
apically;
with
long
rod
-like
process
basally;
dor-
soatrium
undeveloped,
short
and
broad;
gonopore
subapical
and
ventral
(Figs.
39-41).
Specimen
collected
at
Guanping
with
aedeagus
a
mirror
image
of
those
collected
at
Yexianggu
(Fig.
41).
Measurement.
Male
length
2.0-2.1mm
(including
wing).
Material
examined.
Holotype:
(3,
CHINA,
Yunnan
Prov.,
Jinghong,
Yexianggu,
at
light,
30
August
2010,
coll.
Zhang
Meng;
Paratypes:
(3,
same
data
as
holotype;
(3,
CHINA,
Yunnan
Prov.,
Jinghong,
Guanping,
at
light,
29
August
2010,
coll.
Zhang
Meng.
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65
38
34
11
40
35
37
-------
_
--------------
_
33
31
32
39
41
36
FIGURES
31-41.
Davmata
falcata
sp.
nov.
31,
forewing;
32,
hind
wing;
33,
abdominal
apodemes;
34,
genital
capsule;
35,
subgenital
plate,
paramere
and
connective,
dorsal
view;
36,
subgenital
plate,
ventral
view;
37,
style,
dorsal
view;
38,
connec-
tive,
dorsal
view;
39,
aedeagus,
lateral
view;
40,
aedeagus,
caudal
view;
41,
aedeagus
of
specimen
from
Guanping,
caudal
view.
Diagnosis.
The
new
species
is
superficially
similar
to
D.
neka,
but
can
be
distinguished
by
its
male
genitalia
as
follows:
pygofer
dorsal
appendage
falcate,
not
bifurcate
at
apex;
style
with
apical
part
finger
-like;
aedeagus
with
one
process
apically
and
one
basally.
Etymology.
The
name
"falcata"
is
derived
from
the
Latin
adjective
"falcatus"
which
refers
to
the
falcate
pygo-
fer
dorsal
appendage.
66
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ET
AL.
Acknowledgments
We
would
like
to
express
our
sincere
gratitude
to
Dr
I.
Dworakowska
for
her
contribution
to
the
knowledge
of
Chi-
nese
Typhlocybinae
during
her
visit
to
the
Entomological
Museum,
Northwest
A
&
F
University.
Also
we
are
grateful
for
the
remarks
and
suggestions
from
Dr
I.
Dworakowska,
Dr
C.
H.
Dietrich
(Illinois
Natural
History
Sur-
vey),
Dr
S.
Southern
(Entomology,
North
Carolina
State
University),
and
Dr.
J.
R.
Schrock
(Emporia
State
Univer-
sity,
USA)
on
our
manuscript.
This
study
is
supported
by
"The
National
Natural
Science
Foundation
of
China
"
(30770262)
,
"The
Ministry
of
Science
and
Technology
of
the
People's
Republic
of
China
"(2006FY120100),
and
partly
by"Northwest
A&F
University
Grants
for
Outstanding
Young
Faculty
Members"
(Z111020905).
References
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(1969)
New
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Auchenorrhyncha).
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13(153),
163-190.
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B.
&
Ghosh,
L.K.
(1973)
Three
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Zoologischer
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GENERA
CHAGRIA
AND
DAVMATA
FROM
CHINA
Zootaxa
3023
©
2011
Magnolia
Press
67