A new species of Ceryx Wallengren (Lepidoptera:
Arctiidae: Syntominae) from the Kumaon Himalaya, India
Peter Smetacek
The Retreat, Jones Estate,
P.O.Bhimtal, Nainital, Uttarakhand 263136, India
Email: petersmetacek@rediffmail.com
Date of publication (online): 26 May 2010
Date of publication (print): 26 May 2010
ISSN 0974-7907 (online) | 0974-7893 (print)
Editor:K. Gunathilagaraj
Manuscript
details:
Ms # o2306
Received 07
September 2009
Final
received 07 April 2010
Finally
accepted 14 April 2010
Citation: Smetacek, P. (2010). A new species
of Ceryx Wallengren (Lepidoptera: Arctiidae:
Syntominae) from the Kumaon Himalaya, India. Journal of Threatened Taxa 2(5): 894-895.
Copyright: © Peter Smetacek 2010. Creative Commons
Attribution 3.0 Unported License. JoTT allows unrestricted use of this article
in any medium for non-profit purposes, reproduction and distribution by
providing adequate credit to the authors and the source of publication.
Acknowledgement: I am indebted to Drs. I.J. Kitching
and M. Honey of the Natural History Museum, London, U.K., for comparing photos
of C. mirabilis with material in the museum
collection and to the Rufford Small Grant Foundation, U.K. for financial
support that made this work possible.
For
Figure, Images - - click here
The genus Ceryx Wallengren is a large genus, with
representatives in south and west Africa, through
Asia, to Australia. Hampson (1892)
reported C. hyalina Moore, C. diptera Fabricius (as Syntomoides incipiens Walker and Syntomoides brachypecten Hampson) and C. cherra Moore (under Syntomis Ochsenheimer) from the Indian
subregion. None of the above mentioned
species were reported from the western Himalaya.
The following is a description of a
new species recorded in the western Himalaya, which bears the characteristic
hindwing venation lacking veins 3, 5 and 6 (Fig. 1) that distinguishes the
monobasic Syntomoides Hampson, Ceryx and Auriculoceryx Holloway from other genera of the
sub-family Syntominae. Syntomoides is monobasic, differing from Ceryx in
certain features of the male genitalia. Males of the genus Auriculoceryx have filiform antennae. From the illustration of the hindwing venation of S. imaon in Hampson (1892) and Holloway
(1988), the present species differs in having vein 4 straight rather than arched.
The type material of this and other
taxa described by the author (Neptis miah varshneyi; Neptis
clinia praedicta; Comostola hauensteini; Dysaethria himalayica, etc.) are in the author’s personal collection at the Butterfly
Research Centre, The Retreat, Jones Estate, Bhimtal, Uttarakhand. This collection is the only Indian insect
collection on open public display. Some
types, eg. of Neptis miah varshneyi (paratype) and Neptis clinia praedicta (holotype) have been deposited in the Indian National Forest
Insect Collection at the Forest Research Institute, Dehra Dun,
Uttarakhand. Other type material may be
deposited in that depository in future, pending a change in chemical
preservatives used in that institution.
Ceryx mirabilis sp. nov.
(Fig. 1, Images 1-2)
Material Examined
Holotype: Male, 30.viii.2008 Shyamkhet
2000m, Nainital District, Uttarakhand, India. Legit et collectavit, Peter Smetacek, The Retreat, Jones
Estate, Bhimtal, Uttarakhand, India; Reg.no. 1-TS-2009.
Paratypes: 3 exs.: 1
female, same data as holotype; 1 pair 11.ix.2008 in the same locality. Leg. etColl. Peter Smetacek, The Retreat,
Jones Estate, Bhimtal, Uttarakhand, India. Reg.no. 2-TS-2009
(female, 30.viii.2008); 3-TS-2009 (male, 11.ix.2008); 4-TS-2009 (female,
11.ix.2008) respectively.
Etymology
In Latin, mirabilis means
“wonderful”.
Forewing Length
Holotype: 11mm; Paratypes: 11mm.
Description
Holotype: Head black with a pair of yellow
spots on collar; antennae minutely serrate; thorax and abdomen black with a
pair of subdorsal yellow lines extending from collar to ultimate abdominal
segment; abdominal segments fringed with yellow between these lines; abdomen
with a yellow ventral line.
Forewing recto hyaline; costa narrowly black,
leaving a hyaline streak between it and the upper vein of the cell extending
from the base to discocellulars; veins black; broad black bar on
discocellulars; margin narrowly black from termen to vein 3, widening above
that so that the entire area beyond the discocellulars and above vein 4 is black,
except for a small subapical hyaline patch.
Hindwing with only two veins
arising from the hindwing cell apart from Rs; recto surface hyaline, costa and
outer third of wing black.
Paratypes: Female differs from the male in
the following points: antennae simple, the collar yellow; forewing recto
broader, with reduced black area on outer half, the marginal black area
connected to the discocellular bar by a narrow black bar along vein 5;
subapical transparent patch large and quadrate.
Habitat
The type material was recorded on
the roadside in the upper part of the village of Shyamkhet between Bhowali and
Ramgarh. Both pairs were recorded within
a kilometer of each other. Although
roadside swards in the area are typically degraded during other seasons, during
the monsoon months they support lush vegetation, especially stinging nettles (Urtica and Girardinia), dock (Rumex) and other herbs. Forests at the edge of the village consist
mostly of Chir Pine (Pinus roxburghii) and Himalayan Oak (Quercus spp.).
Remarks
The minutely serrate antennae of
the male preclude mirabilis from being placed under the S.E.
Asian Auriculoceryx Holloway. The unusual abdominal markings immediately
distinguish this species from other members of the genus. Drs. Ian Kitching and Martin Honey kindly
compared photos of the type of mirabilis with material in the collection of the Natural History Museum,
London and ascertained that there is nothing similar there.
Both the pairs comprising the type
series were taken in
copula, settled on low growing
plants. No other individuals of this
species were seen. It is on the wing briefly towards the end of the southwest
Monsoon and so far has only been recorded from the village of Shyamkhet,
although nearby localities at similar elevation in the same mountain range (eg.
Nainital 1800-2200 m, Bhowali 1700-1750 m, etc.) havebeen surveyed often over a period of many years. It has not been recorded at
artificial light, although the closely related Syntomoides imaon Cramer is frequently recorded at
light at lower elevation in the area (Bhimtal valley).
REFERENCES
Hampson,
G.F. (1892). The Fauna of British India including Ceylon and Burma. Moths Vol. 1.Taylor and Francis, London, 22+609pp.
Holloway, J.D. (1988). The Moths of Borneo. Part 6 Arctiidae:
Syntominae, Euchromiinae, Arctiinae, Aganainae (to Noctuidae). Southdene Sendirian Berhad, Kuala
Lumpur, 101pp+168figs+6pls.