80-Mile Swarm of Ladybugs Spotted in California The National Weather Service (NWS) spotted a large mass of ladybugs flying over Southern California on June 5. The swarm of bugs was so big it registered as a “light rainstorm” on their radar maps. NWS San Diego, via Twitter The cloud of ladybugs measured about 80 miles by 80 miles. The bugs were estimated to be spread out between 5,000 feet and 9,000 feet. According to NWS meteorologist Casey Oswant, the mass was so out of the ordinary that they sent a spotter to check it out. Casey Oswant, via ‘NPR’ It is reportedly a common time of year for ladybugs to migrate to higher elevations in search of food.