Spotted Lanternflies Are Hatching Again. but How Far Do They Spread Each Year?

Spotted lanternfly (Lycorma delicatula), an invasive pest, holds its wings open, exposing its bright red underwings. Eric Dale/Shutterstock

By Frank Kummer From The Philadelphia Inquirer

Philadelphia -- Black-and-white spotted lanternfly nymphs about a quarter-inch long are starting to hatch in the region, hopping across decks, patios, and trees before they morph over the summer into flying Technicolor adults.