Experts also noted that migration is going on earlier than usual this year due to the expected early start of the southwest monsoon. | Photo Credit: Special Arrangement
For the last few days, the Bengalureians have been amazed by the swarm of butterflies, which they noticed in their neighborhoods, especially around the lakes.
Although the migration of butterflies from Western Ghats to Eastern Ghats is a regular phenomenon in front of the southwestern monsoon, as a result of temperature changes, insects have increased according to experts in the region.
Nature observers said that while butterflies usually migrate across the edge of the city, after a long time this year they migrate across the city. “Migration starts from western Ghats and ends at Eastern Ghats because butterflies are trying to escape the fury of heavy rains. After many years, butterflies are passing Bengalur this time, and so many people have seen them,” explained Girotra, BBW.
Experts also noted that migration is going on earlier than usual this year due to the expected early start of the southwest monsoon. “Migration is entirely dependent on monsoon and temperature. When it is too much warm, it tries to escape. Last year, because the summer was very rough, we did not see many swarms.
Nature observers said that while butterflies usually migrate across the edge of the city, after a long time this year they migrate across the city. | Photo Credit: Special Arrangement
Ordinary crow, double brand, blue tiger and dark blue tiger are some of the commonly observed butterfly species during this season along with an ordinary tiger, Tawnyu Coster and undressed insect tiger.
Members of the Puttenahalli neighborhood Lake Improvement Trust (Pnlit) shared that the migrating butterflies had passed the puttenahalli puttakere in JP Nagar 7.
Nagesh Ramamurthy, another BBW member, noted that migration groups include three to four generations of butterflies. “The durability of the butterfly is usually between three weeks and 45 days. Along their journey, they joined near the lakes during the evenings, laid eggs and continued their way,” he said.
Some nature observers have said that this year more observations are reported due to increased awareness between people and social media. “We cannot find out precisely whether the number of butterflies migrating this year is more or less. This year, this is the case with more citizens who observed them, supported by social media to spread the word,” said Bandi, leading Bangalore Butterfly Club.
“Less studies determine the population of migrating butterflies, with the exception of a few enthusiastic scientists trying to perform a civic exercise using a group that captures a protocol on observation.
Published – 16 May 2025 17:53
