Gaurab Nandi Das - Academia.edu (original) (raw)
Papers by Gaurab Nandi Das
Naturwissenschaften, Jun 24, 2024
Zootaxa, Jun 8, 2020
In this paper, Lethe (Zophoessa) jalaurida (de Nicéville, 1881) and its relatives, viz. the jalau... more In this paper, Lethe (Zophoessa) jalaurida (de Nicéville, 1881) and its relatives, viz. the jalaurida-subgroup (sura-group), are studied. A new species, L. giancbi Lang & Das sp. nov. which was identified as L. elwesi (Moore, 1892) by Lang & Bozano (2015) and Lang (2017), is described from SE Tibet, China. Lethe elwesi houjiangae Lang & Bozano, 2015 and L. jalaurida gelduba Fruhstorfer, 1911 are raised to specific status, viz. L. houjiangae stat. nov. and L. gelduba stat. nov. respectively. Lethe jalaurida plistia Fruhstorfer, 1911 is considered as an unnecessary replacement name of L. jalaurida gelduba. Lethe jalaurida nuolaensis Huang, 2001 is found to be a subspecies of L. gelduba stat. nov., viz. L. gelduba nuolaensis stat. nov.
Journal of the Bombay Natural History Society, May 30, 2020
Revista chilena de entomología, Apr 30, 2020
Este es un artículo de acceso abierto distribuido bajo los términos de la licencia Creative Commo... more Este es un artículo de acceso abierto distribuido bajo los términos de la licencia Creative Commons License (CC BY NC 4.0)
![Research paper thumbnail of Notes on the genus Neope Moore, [1866] from India (Lepidoptera: Nymphalidae, Satyrinae)](https://attachments.academia-assets.com/112635580/thumbnails/1.jpg)
](Shilap-revista De Lepidopterologia, Sep 30, 2021
The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies ... more The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies from India, is reviewed based on a study of recent materials. A detailed taxonomic treatment of the genus Neope from India has been provided along with description of genitalia structures, a gap area for the Indian fauna of Neope. The male genitalia as well as external characters of Neope armandii khasiana Moore, 1881 is described from India for the first time.
Zootaxa, Jul 22, 2021
A new species, Pieris tadokoroi, sp. nov. is described from Himachal Pradesh, India. The new spec... more A new species, Pieris tadokoroi, sp. nov. is described from Himachal Pradesh, India. The new species is closely similar to those of the Pieris napi group and can be diagnosed by its smaller size and a broad apical forewing patch. Based on the recently collected material, the Pieris napi group from India is reviewed. The male and female genitalia are analyzed and illustrated, including the first description of the female genitalia of Pieris extensa bhutya Talbot, 1939. Androconia of all the related species are studied and described.
Journal of Threatened Taxa, Feb 26, 2018
SHILAP Revista de lepidopterología
El Parque Nacional de Namdapha está situado en el distrito de Changlang de Arunachal Pradesh, en ... more El Parque Nacional de Namdapha está situado en el distrito de Changlang de Arunachal Pradesh, en la intersección de la zona de influencia biogeográfica Paleártica e Indo-Malaya. Por su puesto de esta peculiar posición abarca una vegetación y tipos de hábitats geográficos raros, Namdapha tiene una gran variedad de flora y fauna. Aquí informamos sobre la presencia ocho especies o subespecies infrecuentes y escurridizas en el Parque Nacional de Namdapha, concretamente Capila pieridoides (Moore, 1878), Plastingia naga (de Nicéville, [1884]), Salanoemia noemi (de Nicéville, 1885), Lotongussarala (de Nicéville, 1885), Pieris naganum(Moore, 1884), Erites falcipennis Wood-Mason & de Nicéville, 1883, Coelites nothis adamsoni Moore, 1891, Bassaronadurga splendens (Tytler, 1915). La subespecie C. nothis adamsoni . Pierisnaganum naganum se citan por primera vez, después de un espacio de más de un siglo y suministramos fotografías por primera vez, de individuos vivos de estas subespecies. E. fal...
ZOO'S PRINT, Nov 21, 2017
Among the insects, butterflies are the most taxonomically studied group and play key role in ecos... more Among the insects, butterflies are the most taxonomically studied group and play key role in ecosystem as pollinators and bio-indicator species. A total of 136 species of butterflies belonging to 87 genera representing 5 families were recorded from two selected study sites in the fringe area of Similipal Biosphere Reserve during January 2014 to November 2015. Family Nymphalidae was dominant with 44 species, followed by Lycaenidae (42 species), Hesperiidae (22 species), Papilionidae (14 species) and Pieridae (14 species). Out of these 136 species, 15 species are protected under the Indian Wildlife (Protection) Act (1972). The paper also shows some rare and important sightings of butterflies during the study period.
Neotropical Entomology, Jun 8, 2022
Insects
Butterflies are widely used to analyze biogeographical patterns, both at the global and regional ... more Butterflies are widely used to analyze biogeographical patterns, both at the global and regional scales. Thus far, most of the latter originated from well-surveyed northern regions, while the species-rich tropical areas lag due to a lack of appropriate data. We used checklists of 1379 butterfly species recorded in 36 federal states of the Republic of India (1) to explore the basic macroecological rules, and (2) to relate species richness and the distribution of endemics and geographic elements to geography, climate, land covers and socioeconomic conditions of the states. The area, land covers diversity and latitude did not affect species richness, whereas topographic diversity and the precipitation/temperature ratio (energy availability) were positive predictors. This is due the geographic and climatic idiosyncrasies of the Indian subcontinent, with its highest species richness in the small, densely forested mountainous northeast that receives summer monsoons. The peninsular effect ...
FIGURES 7–16. Pieris napi-group from Indian Himalaya. 7. Pieris ajaka Moore, ♂, dorsal & ventral ... more FIGURES 7–16. Pieris napi-group from Indian Himalaya. 7. Pieris ajaka Moore, ♂, dorsal & ventral view, Askot, Uttarakhand (gen. aest.) (28715/H9); 8. ditto, ♀, Uttarkashi, Uttarakhand (gen. aest.) (28716/H9); 9. Pieris melaina Röber, ♂, dorsal & ven- tral view, Sikhim [Sikkim] (gen. aest.); 10. ditto, ♀, Sikhim [Sikkim] (gen. aest.); 11. Pieris erutae erutae Poujade, ♂, dorsal & ventral view, Dibang Valley, Arunachal Pradesh (gen. aest.) (28720/H9); 12. ditto, ♂, Namdapha, Arunachal Pradesh (gen. aest.) (28717/H9); 13. ditto, ♂, Dibang Valley, Arunachal Pradesh (gen. vern.) (28721/H9); 14. ditto, ♀, Dibang Valley, Arunachal Pradesh (gen. vern.) (28722/H9); 15. Pieris extensa bhutya Talbot, ♂, dorsal & ventral view, Dibang Valley, Arunachal Pradesh (gen. vern.) (28725/H9); 16. ditto, ♀, Dibang Valley, Arunachal Pradesh (gen. vern.) (28724/H9). Scale bar: 10 mm.
<i>Pieris erutae erutae</i> Poujade, 1888 (Figs 11–14, 20, 25, 26, 36–38, 45–47, 54–5... more <i>Pieris erutae erutae</i> Poujade, 1888 (Figs 11–14, 20, 25, 26, 36–38, 45–47, 54–56, 62, 63, 70–72, 78–80, 86) <i>Pieris erutae</i> Poujade, 1888: xix (Type locality: "Mou-Pin"). Sbordoni <i>et al.</i>, 2015: 546. <i>Pieris melete</i> var. <i>erutae</i> Poujade; Leech, 1893: 450. <i>Pieris melete</i> var. <i>mandarina</i> Leech, 1893: 451 (Type locality: "North China "). <i>Pieris melete alpestris</i> Verity, 1908: 166 (Type locality: Ta-tsien-lou). <i>Pieris melete australis</i> Verity, 1911: 331 (Type locality: Haut Younnan). <i>Pieris erutae erutae</i> Poujade; Eitscherger, 1983: 370. Winhard, 2000: 29. Tadokoro <i>et al</i>., 2017: 90. <i>Pieris melete ajaka</i> Moore; Sondhi & Kunte, 2016: 9107. <b>Material examined.</b> India, Arunachal Pradesh: 1&male;, Changlang, Namdapha, Anamika falls, 413 m, 13.iii.2017, <i>leg</i>. Saini & Party (<i>gen. aest.</i>) (28717/ H9, NZCZSI); 1&male;, Dibang Valley, Pathar Nalah, 2029 m, 19.iv.2017, <i>leg</i>. Gayen & Das (<i>gen. aest.</i>) (28718/ H9, NZCZSI); 1&male;, Dibang Valley, near Anini, 1162 m, 12.v.2017, <i>leg</i>. Gayen & Das (<i>gen. aest.</i>) (28719/ H9, NZCZSI); 1&male;, Dibang Valley, near Anini, 1381 m, 20.iv.2018, <i>leg</i>. Ranjan & Das (<i>gen. vern.</i>) (28721/ H9, NZCZSI); 1&female;, Dibang Valley, Anini, Maroli, 1680 m, 20.iv.2018, <i>leg</i>. Ranjan & Das (<i>gen. vern.</i>) (28722/ H9, NZCZSI); 1&male;, Dibang Valley, Anini, Etabe, 1397 m, 16.v.2018, <i>leg</i>. Gayen & Tacho (<i>gen. aest.</i>) (28720/ H9, NZCZSI). <b>Diagnosis.</b> Forewing length: Male: 22.50–30.18 mm (<i>n</i> = 5); Female: 26.15 mm (<i>n</i> = 1). <i>Summer form (gen. aest.)</i> (Figs 11, 12). <i>P. erutae</i> is closely similar to <i>P. melaina</i> and <i>P. extensa bhutya</i> but can be distinguished in having weakly dusted wing bases and veins (in <i>P. melaina</i> the wing base is heavily dusted and in <i>P. extensa bhutya</i> wings have pure white ground colour and unmarked forewing cell). The nominate subspecies [...]
FIGURES 12–19. Male genitalia in lateral view with left valva removed. 12, Lethe atkinsonia (Hewi... more FIGURES 12–19. Male genitalia in lateral view with left valva removed. 12, Lethe atkinsonia (Hewitson), 4026 (Sikhim, India); 13, L. jalaurida (de Nicéville), 785 (Simla, India); 14, L. elwesi (Moore), 4035 (Sikhim, India); 15, L. giancbi Lang & Das sp. nov., holotype, SATY0368 (Medog, Tibet); 16, L. houjiangae Lang & Bozano stat. nov., paratype, SATY0363 (Gongshan, Yunnan); 17, L. gelduba gelduba Fruhstorfer stat. nov., SATY0367 (Puge, Sichuan); 18, L. gelduba nuolaensis Huang stat. nov., SATY0361 (Gongshan, Yunnan); 19, L. nosei (Koiwaya), SATY0360 (Gongshan, Yunnan).
![Research paper thumbnail of Notes on the genus Neope Moore, [1866] from India (Lepidoptera: Nymphalidae, Satyrinae)](https://attachments.academia-assets.com/98058401/thumbnails/1.jpg)
](SHILAP Revista de lepidopterología
The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies ... more The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies from India, is reviewed based on a study of recent materials. A detailed taxonomic treatment of the genus Neope from India has been provided along with description of genitalia structures, a gap area for the Indian fauna of Neope. The male genitalia as well as external characters of Neope armandii khasiana Moore, 1881 is described from India for the first time.
PLoS ONE, 2022
The Psyra Walker, 1860, is a typical Sino-Himalayan genus of the subfamily Ennominae, currently k... more The Psyra Walker, 1860, is a typical Sino-Himalayan genus of the subfamily Ennominae, currently known by 18 species/4 subspecies globally and 9 species from India. This study aims to revise the taxonomy and ecology of Indian Psyra by providing a morphology-based diagnostic key, highlighting their altitudinal, habitat and seasonal preferences, and modelling their distribution based on current and future climatic scenarios. Here, we describe a new species, P. variabilis sp. nov. and document 4 species and 1 subspecies as new to India, viz. P. gracilis, P. szetschwana, P. dsagara, P. falcipennis and P. debilis debilis, thus updating the global species count to 19 with 14 species/1 subspecies from India. We also submitted partial mitochondrial COI sequences of P. crypta, P. similaria, P. spurcataria and P. gracilis as novel to the global genetic database and calculated the overall genetic divergence was 5.17% within the genus, suggesting strong monophyly. Being a typical montane genus, ...
Naturwissenschaften, Jun 24, 2024
Zootaxa, Jun 8, 2020
In this paper, Lethe (Zophoessa) jalaurida (de Nicéville, 1881) and its relatives, viz. the jalau... more In this paper, Lethe (Zophoessa) jalaurida (de Nicéville, 1881) and its relatives, viz. the jalaurida-subgroup (sura-group), are studied. A new species, L. giancbi Lang & Das sp. nov. which was identified as L. elwesi (Moore, 1892) by Lang & Bozano (2015) and Lang (2017), is described from SE Tibet, China. Lethe elwesi houjiangae Lang & Bozano, 2015 and L. jalaurida gelduba Fruhstorfer, 1911 are raised to specific status, viz. L. houjiangae stat. nov. and L. gelduba stat. nov. respectively. Lethe jalaurida plistia Fruhstorfer, 1911 is considered as an unnecessary replacement name of L. jalaurida gelduba. Lethe jalaurida nuolaensis Huang, 2001 is found to be a subspecies of L. gelduba stat. nov., viz. L. gelduba nuolaensis stat. nov.
Journal of the Bombay Natural History Society, May 30, 2020
Revista chilena de entomología, Apr 30, 2020
Este es un artículo de acceso abierto distribuido bajo los términos de la licencia Creative Commo... more Este es un artículo de acceso abierto distribuido bajo los términos de la licencia Creative Commons License (CC BY NC 4.0)
Shilap-revista De Lepidopterologia, Sep 30, 2021
The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies ... more The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies from India, is reviewed based on a study of recent materials. A detailed taxonomic treatment of the genus Neope from India has been provided along with description of genitalia structures, a gap area for the Indian fauna of Neope. The male genitalia as well as external characters of Neope armandii khasiana Moore, 1881 is described from India for the first time.
Zootaxa, Jul 22, 2021
A new species, Pieris tadokoroi, sp. nov. is described from Himachal Pradesh, India. The new spec... more A new species, Pieris tadokoroi, sp. nov. is described from Himachal Pradesh, India. The new species is closely similar to those of the Pieris napi group and can be diagnosed by its smaller size and a broad apical forewing patch. Based on the recently collected material, the Pieris napi group from India is reviewed. The male and female genitalia are analyzed and illustrated, including the first description of the female genitalia of Pieris extensa bhutya Talbot, 1939. Androconia of all the related species are studied and described.
Journal of Threatened Taxa, Feb 26, 2018
SHILAP Revista de lepidopterología
El Parque Nacional de Namdapha está situado en el distrito de Changlang de Arunachal Pradesh, en ... more El Parque Nacional de Namdapha está situado en el distrito de Changlang de Arunachal Pradesh, en la intersección de la zona de influencia biogeográfica Paleártica e Indo-Malaya. Por su puesto de esta peculiar posición abarca una vegetación y tipos de hábitats geográficos raros, Namdapha tiene una gran variedad de flora y fauna. Aquí informamos sobre la presencia ocho especies o subespecies infrecuentes y escurridizas en el Parque Nacional de Namdapha, concretamente Capila pieridoides (Moore, 1878), Plastingia naga (de Nicéville, [1884]), Salanoemia noemi (de Nicéville, 1885), Lotongussarala (de Nicéville, 1885), Pieris naganum(Moore, 1884), Erites falcipennis Wood-Mason & de Nicéville, 1883, Coelites nothis adamsoni Moore, 1891, Bassaronadurga splendens (Tytler, 1915). La subespecie C. nothis adamsoni . Pierisnaganum naganum se citan por primera vez, después de un espacio de más de un siglo y suministramos fotografías por primera vez, de individuos vivos de estas subespecies. E. fal...
ZOO'S PRINT, Nov 21, 2017
Among the insects, butterflies are the most taxonomically studied group and play key role in ecos... more Among the insects, butterflies are the most taxonomically studied group and play key role in ecosystem as pollinators and bio-indicator species. A total of 136 species of butterflies belonging to 87 genera representing 5 families were recorded from two selected study sites in the fringe area of Similipal Biosphere Reserve during January 2014 to November 2015. Family Nymphalidae was dominant with 44 species, followed by Lycaenidae (42 species), Hesperiidae (22 species), Papilionidae (14 species) and Pieridae (14 species). Out of these 136 species, 15 species are protected under the Indian Wildlife (Protection) Act (1972). The paper also shows some rare and important sightings of butterflies during the study period.
Neotropical Entomology, Jun 8, 2022
Insects
Butterflies are widely used to analyze biogeographical patterns, both at the global and regional ... more Butterflies are widely used to analyze biogeographical patterns, both at the global and regional scales. Thus far, most of the latter originated from well-surveyed northern regions, while the species-rich tropical areas lag due to a lack of appropriate data. We used checklists of 1379 butterfly species recorded in 36 federal states of the Republic of India (1) to explore the basic macroecological rules, and (2) to relate species richness and the distribution of endemics and geographic elements to geography, climate, land covers and socioeconomic conditions of the states. The area, land covers diversity and latitude did not affect species richness, whereas topographic diversity and the precipitation/temperature ratio (energy availability) were positive predictors. This is due the geographic and climatic idiosyncrasies of the Indian subcontinent, with its highest species richness in the small, densely forested mountainous northeast that receives summer monsoons. The peninsular effect ...
FIGURES 7–16. Pieris napi-group from Indian Himalaya. 7. Pieris ajaka Moore, ♂, dorsal & ventral ... more FIGURES 7–16. Pieris napi-group from Indian Himalaya. 7. Pieris ajaka Moore, ♂, dorsal & ventral view, Askot, Uttarakhand (gen. aest.) (28715/H9); 8. ditto, ♀, Uttarkashi, Uttarakhand (gen. aest.) (28716/H9); 9. Pieris melaina Röber, ♂, dorsal & ven- tral view, Sikhim [Sikkim] (gen. aest.); 10. ditto, ♀, Sikhim [Sikkim] (gen. aest.); 11. Pieris erutae erutae Poujade, ♂, dorsal & ventral view, Dibang Valley, Arunachal Pradesh (gen. aest.) (28720/H9); 12. ditto, ♂, Namdapha, Arunachal Pradesh (gen. aest.) (28717/H9); 13. ditto, ♂, Dibang Valley, Arunachal Pradesh (gen. vern.) (28721/H9); 14. ditto, ♀, Dibang Valley, Arunachal Pradesh (gen. vern.) (28722/H9); 15. Pieris extensa bhutya Talbot, ♂, dorsal & ventral view, Dibang Valley, Arunachal Pradesh (gen. vern.) (28725/H9); 16. ditto, ♀, Dibang Valley, Arunachal Pradesh (gen. vern.) (28724/H9). Scale bar: 10 mm.
<i>Pieris erutae erutae</i> Poujade, 1888 (Figs 11–14, 20, 25, 26, 36–38, 45–47, 54–5... more <i>Pieris erutae erutae</i> Poujade, 1888 (Figs 11–14, 20, 25, 26, 36–38, 45–47, 54–56, 62, 63, 70–72, 78–80, 86) <i>Pieris erutae</i> Poujade, 1888: xix (Type locality: "Mou-Pin"). Sbordoni <i>et al.</i>, 2015: 546. <i>Pieris melete</i> var. <i>erutae</i> Poujade; Leech, 1893: 450. <i>Pieris melete</i> var. <i>mandarina</i> Leech, 1893: 451 (Type locality: "North China "). <i>Pieris melete alpestris</i> Verity, 1908: 166 (Type locality: Ta-tsien-lou). <i>Pieris melete australis</i> Verity, 1911: 331 (Type locality: Haut Younnan). <i>Pieris erutae erutae</i> Poujade; Eitscherger, 1983: 370. Winhard, 2000: 29. Tadokoro <i>et al</i>., 2017: 90. <i>Pieris melete ajaka</i> Moore; Sondhi & Kunte, 2016: 9107. <b>Material examined.</b> India, Arunachal Pradesh: 1&male;, Changlang, Namdapha, Anamika falls, 413 m, 13.iii.2017, <i>leg</i>. Saini & Party (<i>gen. aest.</i>) (28717/ H9, NZCZSI); 1&male;, Dibang Valley, Pathar Nalah, 2029 m, 19.iv.2017, <i>leg</i>. Gayen & Das (<i>gen. aest.</i>) (28718/ H9, NZCZSI); 1&male;, Dibang Valley, near Anini, 1162 m, 12.v.2017, <i>leg</i>. Gayen & Das (<i>gen. aest.</i>) (28719/ H9, NZCZSI); 1&male;, Dibang Valley, near Anini, 1381 m, 20.iv.2018, <i>leg</i>. Ranjan & Das (<i>gen. vern.</i>) (28721/ H9, NZCZSI); 1&female;, Dibang Valley, Anini, Maroli, 1680 m, 20.iv.2018, <i>leg</i>. Ranjan & Das (<i>gen. vern.</i>) (28722/ H9, NZCZSI); 1&male;, Dibang Valley, Anini, Etabe, 1397 m, 16.v.2018, <i>leg</i>. Gayen & Tacho (<i>gen. aest.</i>) (28720/ H9, NZCZSI). <b>Diagnosis.</b> Forewing length: Male: 22.50–30.18 mm (<i>n</i> = 5); Female: 26.15 mm (<i>n</i> = 1). <i>Summer form (gen. aest.)</i> (Figs 11, 12). <i>P. erutae</i> is closely similar to <i>P. melaina</i> and <i>P. extensa bhutya</i> but can be distinguished in having weakly dusted wing bases and veins (in <i>P. melaina</i> the wing base is heavily dusted and in <i>P. extensa bhutya</i> wings have pure white ground colour and unmarked forewing cell). The nominate subspecies [...]
FIGURES 12–19. Male genitalia in lateral view with left valva removed. 12, Lethe atkinsonia (Hewi... more FIGURES 12–19. Male genitalia in lateral view with left valva removed. 12, Lethe atkinsonia (Hewitson), 4026 (Sikhim, India); 13, L. jalaurida (de Nicéville), 785 (Simla, India); 14, L. elwesi (Moore), 4035 (Sikhim, India); 15, L. giancbi Lang & Das sp. nov., holotype, SATY0368 (Medog, Tibet); 16, L. houjiangae Lang & Bozano stat. nov., paratype, SATY0363 (Gongshan, Yunnan); 17, L. gelduba gelduba Fruhstorfer stat. nov., SATY0367 (Puge, Sichuan); 18, L. gelduba nuolaensis Huang stat. nov., SATY0361 (Gongshan, Yunnan); 19, L. nosei (Koiwaya), SATY0360 (Gongshan, Yunnan).
SHILAP Revista de lepidopterología
The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies ... more The genus Neope Moore, [1866], currently consisting of six species and two additional subspecies from India, is reviewed based on a study of recent materials. A detailed taxonomic treatment of the genus Neope from India has been provided along with description of genitalia structures, a gap area for the Indian fauna of Neope. The male genitalia as well as external characters of Neope armandii khasiana Moore, 1881 is described from India for the first time.
PLoS ONE, 2022
The Psyra Walker, 1860, is a typical Sino-Himalayan genus of the subfamily Ennominae, currently k... more The Psyra Walker, 1860, is a typical Sino-Himalayan genus of the subfamily Ennominae, currently known by 18 species/4 subspecies globally and 9 species from India. This study aims to revise the taxonomy and ecology of Indian Psyra by providing a morphology-based diagnostic key, highlighting their altitudinal, habitat and seasonal preferences, and modelling their distribution based on current and future climatic scenarios. Here, we describe a new species, P. variabilis sp. nov. and document 4 species and 1 subspecies as new to India, viz. P. gracilis, P. szetschwana, P. dsagara, P. falcipennis and P. debilis debilis, thus updating the global species count to 19 with 14 species/1 subspecies from India. We also submitted partial mitochondrial COI sequences of P. crypta, P. similaria, P. spurcataria and P. gracilis as novel to the global genetic database and calculated the overall genetic divergence was 5.17% within the genus, suggesting strong monophyly. Being a typical montane genus, ...