geography
Arctic Region and Arctic Council
The Arctic is a polar region located at the northernmost part of Earth.
8 Jul, 2020BRAHMAPUTRA AND ITS TRIBUTARIES
About Brahmaputra River: The Brahmaputra called Yarlung
3 Jul, 2020GOLDEN BIRDWING: INDIA’S LARGEST BUTTERFLY
- With a wingspan of 194 mm, the female of the species is marginally larger than the southern birdwing (190 mm) that Brigadier William Harry Evans, a British military officer and lepidopterist, recorded in 1932.
- But the male golden birdwing (Troides aeacus) is much smaller at 106 mm.
- While the female golden birdwing was recorded from Didihat in Uttarakhand, the largest male was from the Wankhar Butterfly Museum in Shillong.
- According to the authors, the only measurement used in the study of Lepidoptera is wingspan — a simple concept with various interpretations of the term.
- The smallest butterly is the quaker (Neopithecops zalmora) with a wingspan of 18 mm and forewing length of a mere 8 mm.