A review of the genus Cyana Walker, 1854 from India, with descriptions of five new species and three new subspecies (Lepidoptera: Erebidae: Arctiinae: Lithosiini)
Author
Singh, Navneet
Author
Volynkin, Anton V.
Author
Kirti, Jagbir Singh
Author
Datta, Harvinder Singh
Author
Ivanova, Maria S.
text
Zootaxa
2020
2020-02-18
4738
1
1
93
journal article
23994
10.11646/zootaxa.4738.1.1
f0ba3254-67ac-4d33-a341-c71ff16c05f0
1175-5326
3672439
B29D53CB-4E0D-4A25-97EC-ED983730E8B2
Cyana watsoni
Hampson, 1897
,
stat. rev.
(
Figs 84–87
,
196
,
264
)
Cyana watsoni
Hampson, 1897
,
Journal of the
Bombay
Natural History Society
11
: 296 (
Type
licality: “Khásis,”).
Type material examined.
Lectotype
(designated herein):
♂
(
Fig. 84
), printed label “Khasis 96–246” / printed label “Khasis. Nat. Coll.” / handwritten label “
Cyana Watsoni
type
♂
. Hmpsn.” / printed round label with a red circle “Type” / printed label with a unique identifier “NHMUK010597910” (Coll.
NHMUK
);
paralectotypes
:
2 ♀
, Upper
Burma
III.93
E.Y. Watson
(Coll.
NHMUK
).
Other material examined
.
ASSAM
:
1 ♂
,
Assam
(
Coll.
NHMUK
)
;
2 ♀
, NE
India
,
Assam
,
Nameri Nat. Park
,
40 km
N Tezpur
,
150 m
,
27°20’N
,
93°15’E
,
24.VII–2.VIII.1997
, leg.
Sinjaev
&
Murzin
(
Coll.
MWM
/
ZSM
)
;
MEGHALAYA
:
1 ♂
,
Khasis
,
VIII.1894
,
Nat. Coll.
(
Coll.
NHMUK
)
;
2 ♂
,
Khasia Hills
,
Assam
,
Nissary
(
Coll.
NHMUK
)
;
1 ♀
,
Khasia Hills
,
Assam
(
Coll.
NHMUK
)
;
1 ♀
,
Cherrapunji
, X.[18]93,
Assam
(
Coll.
NHMUK
)
;
1 ♀
,
Cherrapunji
, IX.[18]93,
Assam
(
Coll.
NHMUK
)
;
1 ♂
, [
Meghalaya
]
Khasis
,
Nat. Coll.
, slide AV20170
♂
Volynkin
(
Coll.
ZFMK
)
;
22 ♂
,
83 ♀
, NE
India
,
Assam
, W
Meghalaya
,
Garo Hills
,
Nokrek National Park
,
25°40’N
,
91°04’E
,
1150 m
,
2–13.VII 1997
, leg.
Afonin
&
Sinajev
, slides MWM 34410 (
♂
), MWM 34538 (
♂
), MWM 35877 (
♀
)
Volynkin
(
Coll.
MWM
/
ZSM
)
.
FIGURES 80–87.
Cyana
spp.: adults. 80,
C. moelleri
, lectotype ♂, India, Sikkim (©NHMUK); 81,
ditto
, ♂, India, Sikkim (MWM/ZSM); 82,
ditto
, ♂, India, Sikkim (MWM/ZSM); 83,
ditto
, ♀, India, Sikkim (MWM/ZSM); 84,
C. watsoni
, lectotype ♂, India, Meghalaya (©NHMUK); 85,
ditto
, ♂, India, Meghalaya (MWM/ZSM); 86,
ditto
, ♂, China, Yunnan (MWM/ZSM); 87,
ditto
, ♀, China, Yunnan (MWM/ZSM).
Remark.
In order to stabilize the nomenclature, here we designate the male specimen from Khasi Hills deposited in NHMUK and labeled as “Type” as
lectotype
, and fix the species’ type locality as “Khásis”.
Diagnosis.
Forewing length is
14–15 mm
in males and
17–18 mm
in females.
Cyana watsoni
has no external differences from
C. moelleri
and can be distinguished by the genitalia structures only. The male genitalia of
C. watsoni
differ from those of
C. moelleri
by their narrower aedeagus and the vesica structure: in
C. watsoni
the vesica bears a long transverse band-like cluster of strong spine-like cornuti stretching from the base of the dorsal diverticulum to the vesica ejaculatorius, whereas in
C. moelleri
there is a longitudinal band-like cluster of smaller spine-like cornuti stretching from the vesica base to the base of the distal diverticulum, and a subapical bunch consisting of 5–6 spine-like cornuti. The female genitalia of these species are very similar, but in
C. watsoni
the ductus bursae is narrower than that of
C. moelleri
, the posterior sclerotized section of corpus bursae is more rugose, and the signum is slightly smaller.
Distribution.
North East
India
(
Assam
and
Meghalaya
) (
Hampson 1897
;
Hampson 1900
, as part of
C. molleri
, missp.), North
Myanmar
(
Černý & Pinratana 2009
, as a part of
C. molleri
, missp.) and
China
(
Yunnan
) (present study).