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First photographic record of the butterfly Himalayan Sordid Emperor (Chitoria sordida sordida) has been reported from Namdapha National Park, Arunachal Pradesh.

About Himalayan Sordid Emperor

  • It is a butterfly species belonging to the Nymphalidae family.
  • Known for brownish wing patterns and typical basking behaviour on rocks.
  • Usually found in tropical forest habitats at lower elevations.

Key Highlights of Discovery

  • Recorded in Namdapha National Park and Tiger Reserve, one of India’s richest biodiversity areas.
  • Observed near a forest stream (Lunkai Nalla).
  • Identification based on:
    • Wing patterns
    • Antennae structure
    • Colouration
  • No specimen collected; record is based on photographic evidence.

Namdapha National Park and Tiger Reserve

  • Located in Changlang district, Arunachal Pradesh
  • Lies along the India–Myanmar international border
  • Spread over 1985.23 sq. km
  • Situated at the junction of:
    • Indian subcontinent biogeographic region
    • Indo-China biogeographic region
  • Bounded by:
    • Dapha Bum ridge (Mishmi Hills)
    • Patkai ranges
  • Shares boundary with Kamlang Wildlife Sanctuary
  • River system:
    • Namdapha River (tributary of Noa-Dihing) flows north to south
  • Namdapha is unique because it contains multiple forest types across altitudes:
  • Tropical evergreen, Moist deciduous, Temperate and Alpine scrub.
  • Flora (Plant Diversity):Presence of rare species like:
  • Pinus merkusii
  • Abies delavayi
  • Home to Blue Vanda (rare orchid)
  • Medicinal plants:
    • Mishimi Teeta (Coptis teeta) → used by local tribes
  • Fauna (Animal Diversity): Large mammals:
  • Elephant
  • Himalayan Black Bear
  • Himalayan Sun Bear
  • Primates:
    • Hoolock Gibbon (India’s only ape)
    • Slow Loris
  • Only park in the world with four big cat species:
    • Tiger
    • Leopard
    • Snow Leopard
    • Clouded Leopard

Significance of the Finding

  • Marks a range extension for the species.
  • Earlier known from:
    • Sikkim, West Bengal, Assam, Manipur
    • Bhutan and Myanmar
  • Not recorded in earlier checklists of Arunachal despite ~175 species of Nymphalidae documented.

Exam Hook

Prelims (MCQ)

With reference to the Himalayan Sordid Emperor, consider the following statements:

  1. It belongs to the Nymphalidae family of butterflies.
  2. It has been recorded for the first time in Arunachal Pradesh.
  3. It is protected under Schedule I of the Wildlife Protection Act.
  4. It is commonly found in desert ecosystems.

Which of the statements given above are correct?
(a) 1 and 2 only
(b) 1, 2 and 3 only
(c) 2 and 4 only
(d) 1, 3 and 4 only

Answer: (a)

One Line Wrap

The Himalayan Sordid Emperor’s discovery in Arunachal highlights Northeast India’s unexplored biodiversity and the need for deeper ecological research.

Source

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