Skip to Content
Featured

A Swarm of a ‘Billion’ Painted Lady Butterflies Is Migrating Through Southern California

[dropcap size=big]A[/dropcap] massive swarm of at least 1 billion butterflies is traveling across Los Angeles and neighboring counties at a breathtaking speed of almost 20 miles an hour, reports said.

The butterfly species Painted Ladies, cousins to the Monarch butterfly, are in a rush to reach breeding areas in Oregon after spending winter in the deserts of northern Mexico, according to Tom Merriman, a director of a butterfly non-profit group in Encinitas, in an interview with the Pasadena Star News. “They’ve laid tons of eggs in the desert, and so there may be over a billion butterflies,” Merriman told the paper.

Social media users in L.A. reported seeing the fluttering insects across the region, from Glendora to the beaches to South-Central L.A. Butterflies floated quickly across Martin Luther King Jr. Boulevard in South L.A. from downtown to Leimert Park.

RELATED: 'We Mostly Sold Burritos': Taco Truck Serves Breakfast For Motorists Stuck on 105 Freeway After Fiery Crash

Experts said the migration is prompted also by California’s heavy winter rains. Butterflies had actually become scarce in California during the prolonged previous drought, the L.A. Times noted.

* Updated.

RELATED: The Best Mexican Food in South-Central L.A. ~ An L.A. Taco Guide

SUBSCRIBE TO L.A. TACO VIDEOS ON YOUTUBE!

Stay in touch

Sign up for our free newsletter

More from L.A. TACO

L.A. TACO Neighborhood Guides: The Fairfax District

Fairfax has Tyler the Creator's preppy emporium, breakfast burritos with smoked potatoes, a Guns N' Roses museum, legendary 3 a.m. pastrami, and one of L.A.'s last remaining newsstands. Plus a neighborhood history by artist Adam Villacin.

Daily Memo: A Push for ‘Quieter’ Immigration Raids and An Increasing Use of Force at Detention Centers

We are also exactly a month away from June 6th, when the Border Patrol arrived in Los Angeles and began the raids that terrorized so many around the country.

Here’s Every Single Death Linked to Immigration Enforcement Since Trump’s Raids Began in 2025

We hope this register offers a moment to remember the names and stories of the victims. For each one, we’ve included the backstory we were able to gather alongside the official account from government agencies.

From Florida to SoCal: The Vietnamese Creator Spotlighting Hidden Gem Restaurants for Millions

Moving to California felt healing—and almost like entering "a new country," says Soy Nguyen. For the first time, she saw Vietnamese and Asian cultures openly embraced, a stark contrast to Florida.

May 5, 2026

Los Dorados And Los Cholos Are The Big Winners At TACO MADNESS 2026

Over 2,000 of you packed Gloria Molina Grand Park and completely sold out multiple taquerías.

May 4, 2026

Daily Memo: 18th Death in ICE Detention Is Presumed a Suicide After An Alleged Altercation Left a Guard Unconscious

According to original reporting by Andrew Free, “Sources close to the facility report the man was in solitary confinement following an altercation with a CoreCivic guard that left the guard unconscious.” He was 33, from Cuba, and was found dead on April 28th at the Georgia facility run by CoreCivic, where 15 people have died overall.

See all posts