The moths (Lepidoptera: Heterocera) of northern Maharashtra: a preliminary
checklist
Sachin A. Gurule1 & Santosh M. Nikam2
1,2 Maratha Vidya Prasarak Samaj’s, Post
Graduate Department of Zoology, K.T.H.M. College, GangapurRoad, Nashik, Maharashtra 422002, India
1 sachin.gurule@yahoo.com (corresponding author), 2 smnikam06@yahoo.co.in
doi: http://dx.doi.org/10.11609/JoTT.o2555.4693-713 | ZooBank:urn:lsid:zoobank.org:pub:569408F9-A16D-4381-B1FC-6D0A7ADA6F73
Editor: Ian J. Kitching,
Natural History Museum, Cromwell Road, UK. Date of publication:26 August 2013 (online & print)
Manuscript details: Ms #
o2555 | Received 31 August 2010 | Final received 02 July 2013 | Finally
accepted 18 July 2013
Citation: Gurule,
S.A. & S.M. Nikam (2013). The moths (Lepidoptera:Heterocera) of northern Maharashtra: a preliminary
checklist. Journal of Threatened Taxa 5(12): 4693–4713; http://dx.doi.org/10.11609/JoTT.o2555.4693-713
Copyright: © Gurule& Nikam 2013. Creative Commons
Attribution 3.0 Unported License. JoTT allows unrestricted use of this article in any medium,
reproduction and distribution by providing adequate credit to the authors and
the source of publication.
Funding: University Grant Commission,
New Delhi as a major Research Project to Dr. S.M. Nikam(Grant No.: F.No. 32-503/2006
dated 28th
February 2007)
Competing Interest: Authors
declare no competing interest.
Acknowledgements: We are
grateful to UGC, New Delhi for providing funding (Major Research Project) to
undertake this study. We thank Dr. V.B. Gaikwad,
Principal of K.T.H.M. College Nashik, for providing
necessary laboratory facilities. We also thank Dr. Roger Kendrick, Director, C
& R Wildlife, Hong Kong and Mr. Ryan Brookes, Naturalist, Mahad India for kind help identifying several of the moth
species recorded here. We cannot forget the sincere help extended by Mr. Borse Vinod and Mr. Thorat Swapnil of the Zoology
Department at the time of the field and laboratory work. The co-operation
rendered by the non teaching staff of our department
and the staff of the Forest division is gratefully acknowledged.
For figures, images, tables -- click here
The northern region of
Maharashtra State, India, includes Nashik, Dhule, Jalgaon and Nandurbar districts. This area is bounded in the north-west by the
Dang forest, Gujarat, in the north by Madhya Pradesh, by Marathwadaregion to the east, by Ahmadnagar District to the
south, and towards the south-west by Thane District. The area is located between 18033’–21061’N
& 73016’–76028’E, and covers an area of
40,346km2 (Fig. 1).
Northern Maharashtra has a
tropical climate, specifically a tropical wet and dry climate in the Koppen climate classification (McKnight & Hess 1884),
with a seven-month dry season and a peak of rains in July, receiving rain from
both the northeast and southwest monsoons. The temperature is moderately stable, ranging between 200C
and 420C. The cold
season from December to February is followed by the summer season from March to
June; June to about the end of September constitutes the south-westmonsoon season; and October and November form the post-monsoon season (Greater
Bombay District Gazetteer 1960). The forest types found in the area are classified as tropical moist
deciduous forest, sub-tropical hill forest and tropical dry deciduous forest
(District Gazetteer Nasik District 2010).
Due to the high altitude and
favorable conditions, northern Maharashtra has an abundant and diverse flora
and fauna. The region has a wide
variety of insects, a major component of which is the order Lepidoptera, but
scientific documentation of the moth fauna is very much lacking. Insects comprise about 90% of tropical
forest biomass (Fatimah & Catherine 2002), but in northern Maharashtra
there is little data on the Lepidoptera due to a lack of researchers, who only
prefer to work on less diverse taxa. Another problem in assessing insect diversity lies in the deficiency of
knowledge of the systematics of the insect fauna of this region, which is due
in part to lower conservation efforts towards invertebrates compared to those
accorded to large vertebrates and plants (Mahajan2004). Although 789 species of
moths have been recorded from Maharashtra State, from Pune, Satara,
Mumbai and Khandala (Cotes & Swinhoe1887–89), there are no records of the moths found in Nashik,Dhule, Jalgaon & Nandurbar districts.
Megadiverse groups like the insects form
a major component of the biodiversity of any area and thus scientific surveying
and documentation of this fauna is indispensable to any scientific study and
conservation programme. It is not possible to assess the value
of a site for conservation without such data (Kendrick 2002). Being a megadiversetaxon with enormous species richness in the tropics, the evaluation of the
total species richness of all insects would be extremely laborious and time
consuming. Therefore, indicator
groups, such as moths, are frequently selected as the subject of study. Such a
taxon is often selected because it is taxonomically well-knownand thus species are relatively rapid to identify (Holloway 1985).
Collection and Identification
The collection
of moth specimens were done from Nashik, Dhule, Jalgaon and Nandurbar district of northern Maharashtra during June 2009
to June 2010. The five sites (Table 1) from each district selected for
collection. In the present study data was collected from 67 trap nights within
the selected sites for about 5hr trapping each night.
The collection of nocturnal
moths was undertaken with light traps at a light sheet (Fig. 2 a,b), using either a Philips HQL
125W mercury vapour bulb, Wipro smartlite20W compact fluorescent lamp or a GE Edison 15W 240V Quad. Several traps had been devised for
capturing moths, such as the Rothamsted trap, Heath
trap and Robinson trap (Fry & Waring 1996); for
this study a light trap (Fig. 2a) was designed based on principles of standard
traps. As widely recognized by
lepidopterists, many trap designs are not particularly suitable for use in
tropical conditions, primarily because they are too small to cope with the
enormous catches that are so frequently encountered (Barlow 1982). To overcome these difficulties, most
moths were recorded at a light sheet. A white 10’x6’ cloth sheet was hung between two vertical poles and the
light source placed in such way that the whole sheet was brightly illuminated. Moths were collected from both forest
and residential parts of the study area.
The moth specimens collected
were pinned and labeled in the field. Later, they were further prepared (relaxed, set), sorted to family level
and then identified to species in the laboratory.
As noted by many
lepidopterists, relaxing, setting and labeling of specimens are both laborious
and time consuming procedures (Fatimah & Catherine
2002). Thus, in the present study,
species abundance data was recorded in the field and most moths released, with
only a small sample collected and prepared as voucher materials which are
deposited in the Departmental Insect Reference Museum of KTHM College, Nashik, which is affiliated to Pune University. Cocoons of moths of family Bombycidae were collected from sericulture farms in which Bombyx mori are
domesticated for the production of mulberry raw silk. Identification of the moths was carried
out with the help of identification keys, standard reference books, and
available literature. Species whose
identities could not be ascertained from external morphology were studied by
dissecting the genitalia with the stereoscopic binocular microscope using
standard methods. Species not
assigned to species level were given a morphospecieslabel, pending further investigation, and are held at Zoology Research centre, K.T.H.M. College affiliated to Pune University.
. They are listed in the checklist
as [genus] sp. The classification used mainly follows
Holloway (1983, 1985, 1986, 1987b, 1988, 1989, 1994, 1996, 1997, 1999); Kristensen 1999 but also
incorporating recent changes in superfamily Noctuoidea(Lafontaine & Schmidt 2010; van Nieukirken et al.
2011; Zahiri et al. 2010, 2011; Dubatolov& de Vos 2010). Species are listed alphabetically within
family and subfamily (Table 2).
Results
A total of 728 moth specimens
were collected, which were classified into 245 species (of the 789 species
previously recorded from Maharashtra) and placed in 177 genera, and 20
families; the remaining specimens were deposited in Departmental Insect Reference
Museum of KTHM College, Nashik, affiliated to Pune
University pending further investigation. A preliminary checklist of the moth fauna of northern Maharashtra is
presented in Table 2 (Images 1–245 all photographs taken by Sachin A. Gurule).
A larger number of Macrolepidoptera were recorded than Microlepidopteradue to greater efforts taken to record these moths using light sheet and light
trap methods rather than other methods, and also due to the difficulty with
identification of Microlepidoptera; many of the
specimens are thus pending further investigation. The Microlepidoptera superfamilies Tineoidea, Tortricoidea, Cossoidea, Zygaenoidea, Thyridoidea and Hyblaeoidea were represented by the families Tineidae, Tortricidae, Cossidae, Limacodidae, Thyrididae and Hyblaeidaerespectively. The
superfamily Pyraloidea is represented by two familiesPyralidae and Crambidae. In the present survey, only one species
each was recorded from the families Tineidae, Tortricidae, Cossidae and Thyrididae; whereas the families Limacodidae and Hyblaeidae were
represented by three and two species respectively. Crambidae are
the dominant microlepidopteran family represented by
26 species and Hypsopygia mauritialis is the only representative of the family Pyralidae. The
superfamily Lasiocampoidea, which includes only the
family Lasiocampidae, is represented by four species.
Moths of this family are susceptible to fungi and are also attacked by tachinid flies (Chandra 2007). The superfamily Bombycoidea is represented by four families Eupterotidae (three species), Bombycidae(four species), Saturniidae (three species) and Sphingidae (24 species). Family Eupterotidaeis represented by the beautifully coloured Eupterote fabia, Eupterote lineosa and Eupterote mollifera discrepans. Moths
of family Saturniidae often fly late at night, with
an irregular flight and are readily attracted towards light. Three species, Actias selene, Antheraea mylitta and Attacus taprobanis were recorded from Nashikand Jalgaon districts. The superfamily Geometroidea is represented by two families, Uraniidae (two species) and Geometridae(25 species). The family Uraniidae is represented by Micronia aculeata and Phazaca theclata. Some species from Geometridaeare diurnal and so would have been missed.
The superfamily Noctuoidea is represented by five families; Notodontidae (three species), Erebidae(101 species), Euteliidae (four species), Nolidae (seven species) and Noctuidae(29 species). Recent changes in the
classification of this superfamily have resulted in the inclusion of the
previous families Arctiidae and Lymantriidaeas subfamilies of Erebidae, i.e., as Arctiinae and Lymantriinae(Lafontaine & Schmidt 2010; van Nieukirken et al.
2011; Zahiri et al. 2010, 2011). The moths of subfamily Arctiinae are well represented by brightly coloured tiger and footman moths and moths of the subfamilyLymantriinae are known as tussock moths. Erebidae is
thus now the largest of all moth families. Subfamily Erebinae is the largest and includes
the tribe Catocalinae (Lafontaine & Schmidt 2010)
representing owlet and underwing moths. Family Notodontidaeis represented by only three species, Phalera cossoides, Phalera grotei and Paracerura priapus and thus is rare in occurrence.
Discussion
Cotes & Swinhoe (1887–89) and Hampson(1892–1896) listed 4553 and 5277 moth species respectively from India; of which they have reported 789 and 611 moth species
principally from western Maharashtra. Mathew et al. (2004) catalogued 202 species of Lepidoptera from Shendurny Wildlife Sanctuary, Kerala, of which 73 were
butterflies and 129 were moths from nine families, with Noctuidae(including Erebidae) and Pyralidaethe dominant families. Chandra
(2007) studied the moth diversity of Madhya Pradesh and Chhattisgarh and
recorded 142 species from 90 genera in 16 families, with families Noctuidae (including Erebidae)
and Crambidae dominant in that area. Ghosh (2003) studied the geometrid moths of Sikkim and
reported 525 species, and cited a total of 460 and 260 species of Geometridae from Meghalaya and West Bengal
respectively. Guruleet al. (2010) catalogued 70 species of moths from the family Noctuidae (including Erebidae) inNashik District of Maharashtra. Sidhu et al.
(2010) documented 109 microlepidopteran species in
the online version of the Zoological Survey of India. Finally, Rose & Pooni(2004, 2005) recorded 18 species belonging to the superfamily Pterophoroidea and 16 species belonging to the superfamily Tortricoidea from the north-westernpart of India. The above figures indicate that the moth fauna of northern
Maharashtra is highly diverse compared to Madhya Pradesh and Uttar Pradesh,
despite the fact that the area shows low geometrid species as compared to
Meghalaya and West Bengal.
In the present survey, familyErebidae includes most of the species (101), followed
by the families Noctuidae (29), Crambidae(26), Geometridae (25) and Sphingidae(24); the noctuid to geometrid ratio found in the survey is 5:1. The surveyed area has a higher
proportion of plants from the families Cupressaceae, Menispermaceae, Fabaceae, Malvaceae, Solanaceae, Convolvulaceae, Euphorbiaceae, Mimosaceae, Ebenaceae, Sapotaceae, Sapindaceae, Brassicaceae, Asteraceae, Poaceae, Linaceae and Amaranthaceae, which may serve as indicator taxa for noctuid
moths, with lower proportions of plants from families Myrtaceae,Rutaceae, Rhizophoraceae, Periplocaceae, Combretaceae, Thymeliaceae, Fagaceae and Santalaceae indicating a rich geometrid fauna (Kitching et al. 2000). The ratio obtained in the present study suggests the moth assemblages
recorded are typical of human-disturbed forest of wild and orchid plants with
relatively low geometrid component and moderate agriculture and open habitats.
The moth fauna of northern
Maharashtra is highly diverse but after evaluation of the collection data of
the 245 species recorded and identified, it was also observed that due to
topographical changes and loss of natural habitats (Mahajan2004), the populations of many species have declined. As noted above, light trap designs are
not particularly suitable for use in tropical conditions, because they are
generally too small to cope with the enormous catches that were frequently
encountered (Barlow 1982). So
samples obtained from the light sheet proved to be extremely valuable for the
production of a preliminary checklist of the moth fauna of northern
Maharashtra. However, the sampling
period is really insufficient to estimate species richness, being relatively
short. A more exhaustive survey of
all regions is required with other sampling methods, including crepuscular
netting, baiting, larval searching, diurnal nectaringand malaise trapping, and this is sure to yield new records for this area.
Conclusion
The results of this survey
indicate that the moth fauna of northern Maharashtra is
characterized by larger proportions of Erebidae, Noctuidae, Crambidae, Geometridae and Sphingidae, which
are also among the most diverse families of moths in this region, other
families being relatively rare (or at least under-collected, especially Microlepidoptera). Overall, the moth fauna of northern Maharashtra is highly diverse but
many species are only uncommonly encountered. Conservation of the area’s flora and
plantation by the Forest Division thus helps preserve a reservoir for moth and
other insects but more efforts are required towards their scientific
documentation and conservation.
A future course of action
Inventorying is the first
step in conservation. The list of
moths presented here is preliminary, considering the rich faunal diversity of
the area; a more comprehensive study is required to document the entire
biodiversity present in this area. A detailed survey will be carried out to record the moth fauna of this
area with proper scientific documentation. This exhaustive survey of all regions will be conducted using the
additional sampling methods noted above. All records will be submitted to the Forest Department and the
Zoological Survey of India for documentation.
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