South Korea has recently been hit by another surge of lovebugs. But romance is certainly not in the air for residents of Seoul and neighboring Incheon city, who have been plagued by these pesky insects in recent weeks, as rising temperatures due to climate change spur their spread.

Swarms of “lovebugs” are back in South Korea, blanketing a mountain peak, entering houses and sticking to car windows. Flying attached to one another while mating, the insects, known to scientists as Plecia nearctica,