A new species of Nerice Walker, 1855 and further additions to the catalogue of Indian Notodontidae Stephens, 1829 (Lepidoptera: Noctuoidea) from Himalaya with report of range extensions
Author
Mazumder, Arna
Author
Raha, Angshuman
Author
Sanyal, Abesh Kumar
Author
Gayen, Subrata
Author
Mallick, Kaushik
Author
Bandyopadhyay, Uttaran
Author
Chandra, Kailash
Author
Schintlmeister, Alexander
text
Zootaxa
2020
2020-03-05
4748
1
119
140
journal article
10.11646/zootaxa.4748.1.6
a9a57287-a368-470c-b655-91442580d467
1175-5326
3697634
CD2BFE56-6516-4C05-8FBF-D0EBF417B25A
Nerice (Nerice) mishmiensis
Mazumder, Raha, Chandra & Schintlmeister
sp. nov.
[
Fig. 2
(A–B)]
Holotype
:
1 ♂
,
India
,
Arunachal Pradesh
,
Dibang Valley dist.
,
Dihang-Dibang
BR
,
Anini
,
Amika
,
3070 m
,
28.7641°N
;
95.9611°E
,
05. vi. 2018
, leg.
S. Gayen
&
Team.
Type deposited in the National Zoological Collection (
NZC
) of ZSI, Kolkata [
NZC
Regn. No. 6285/H10].
Etymology
: The Eastern Himalayan landscape of Dibang Valley and the indigenous communities inhabiting there are both referred as Mishmi, after which the new species is named.
Description
:
Head
: frons and head covered with dark chocolate brown hairs all over; antennae pectinate until the tip, with branches brown and the shaft dark brown; palpi porrect, covered with dark chocolate brown hairs.
Wings
: Forewing length (measured from base to apex of the right forewing)
♂
21 mm
. Forewing broad, apical area slightly extended, outer margin lightly sinuous, fuscous reddish-brown coloured; its lower part, up to vein M
2
suffused with many silvery grey scales and therefore appears light reddish-brown; from base towards costa a dark brown patch originates, darker near base and lighter as it gradually becomes broader while approaching outer margin; at the median area a small tooth-shaped quadrate protrusion arises running downwards and terminating much before inner margin, outer margin of this protrusion with a minute tooth on vein Cu
2
, portion of the vein beyond the tooth blackish; median nervure M
3
darkly coloured from outer margin to the end of the quadrate protrusion; at postmarginal area a small prominent triangular dark chocolate brown speck arises from costa which ends in few dark brown dots on veins R
2
to R
4
; costa towards apical area slightly suffused with grey beyond the triangular speck; all veins black beyond postmedial area; underside chocolate brown with grey scales at its origin, costal margin towards apex marked with few white minute streaks; cilia reddish brown, with white tips from R
5
to tornal angle. Hindwing brown with slightly darker postmedial line and chocolate brown cilia; underside same.
Abdomen
: Dark reddish-brown in colour.
Male Genitalia
: Uncus robust, club-shaped with circular apical part, central part of the uncus tip bears a small triangular projection; soccii slender, straight, not reaching the tip of uncus; valva moderately broad with rounded apex and with a triangularly pointed, flap-like saccular projection; juxta disc-shaped; saccus reduced; phallus long and straight, phallus tip bifurcate, each process further bifurcated, like tree branching; 8
th
sternite bilobed, forming a deep V-like furrow; 8
th
tergite less modified of a squarish shape with specific sclerotizations, similar as in
N. upina
Alphéraky, 1892
or
N. aemulator
Schintlmeister & Fang, 2001
.
FIGURE 2.
(A–B)
Nerice (Nerice) mishmiensis
sp. nov.
, A—Adult ♂ dorsal side, B—Adult ♂ ventral side; C—
N. aemulator
, Adult ♂ dorsal side; D—
N. upina
, Adult ♂ dorsal side; (E–F)
N. (Pseudonerice) pictibasis
, E—Adult ♂ dorsal side (Uttara- khand, India), F—Adult ♂ dorsal side (Shaanxi, China). [Scale bar = 1 cm]
FIGURE 3
. (A–C)
Nerice (Nerice) mishmiensis
sp. nov.
, A—Ventral view of ♂ genitalia, B—Phallus, C—8
th
abdominal segments; (D–F)
N. aemulator
, D—Ventral view of ♂ genitalia, E—Phallus, F—8
th
abdominal segments; (G–I)
N. upina
, G—Ven-tral view of ♂ genitalia, H—Phallus, I—8
th
abdominal segments; (J–L)
N. (Pseudonerice) pictibasis
, J—Ventral view of ♂ genitalia, K—Phallus, L—8
th
abdominal segments. [Scale bar = 1 mm]
The female unknown.
Diagnosis
: Externally
N. mishmiensis
Mazumder, Raha, Chandra & Schintlmeister
sp. nov.
resembles
N. upina
and
N. aemulator
although our specimen is much darker with few marked differences [
Fig. 2
(C–F)]. The dark brown costal spot before the apex is bigger and prominent and the medial quadrate patch is much extended downwards to the inner margin. The male genitalia differs in having broad rounded uncus, which is pointed in
N. aemulator
and
N. upina
. The soccii are much slender and longer which is short in
N. upina
and broad and roundish in
N. aemulator
. The unique tree-like branching at the tip of the long phallus is the most outstanding diagnostic feature of
N. mishmiensis
Mazumder, Raha, Chandra & Schintlmeister
sp. nov.
Also the bilobed 8
th
sternite of the new species differs in having a deep V-shaped furrow unlike that of the other two species [
Fig. 3
(A–I)].
Habitat
:
Nerice (Nerice) mishmiensis
Mazumder, Raha, Chandra & Schintlmeister
sp. nov.
is currently reported from the lush green mountainous landscape of Mishmi Hills, Dihang-Dibang Biosphere Reserve. The entire landscape, lying between
500 m
and
6000 m
, is blessed with high rainfall ranging from
2000 mm
to
5000 mm
spanning over 8–9 months rendering to its rich flora with tropical wet evergreen, subtropical, temperate and alpine forests and high humidity which rises up to 90%. The temperature ranges from -8 ºC to 30 ºC, heavy snowfall can be witnessed during winter in high altitude areas above
2000 m
, whereas, snow persists throughout the year above
5000 m
altitude (
Mize
et al
. 2014
). The
type
locality, Amika in Mishmi Hills is situated at an altitude of about
3000 m
and the dominant vegetation
type
here is the East Himalayan Mixed Coniferous forest (12/C3a) with intermittent Bamboo brakes (1B/2S) (
Champion & Seth 1968
) [
Fig. 4
(A–B)]. The new species was collected in June when the average temperature and humidity range between 18 °C–22 °C and 80–90% respectively with heavy rainfall.
Note
: Till date, from
India
, only one species,
Nerice (Pseudonerice) pictibasis
(
Hampson, 1897
)
was known under this genus [
Fig. 3
(J–L)].
Nerice (Nerice) mishmiensis
Mazumder, Raha, Chandra & Schintlmeister
sp. nov.
is the second species under this genus and first under the subgenus
Nerice
from
India
.