This is a spotted lanternfly. It feeds on trees that people use for various important purposes, such as fruit trees, pine trees, and ornamental trees. The species is native to China but has spread to the US and is wreaking havoc on the fruit and logging industries. If allowed to spread, lanternflies will cause serious damage to apple, cherry, plum, and pine trees - among many others, leaving the US with a shortage of fruit and timber. They are currently found in Connecticut, Delaware, Indiana, Maryland, Massachusetts, New Jersey, New York, Ohio, Pennsylvania, Virginia, and West Virginia, and are likely to spread farther. Check your vehicle, clothes, and other items frequently when travelling through these areas and before you leave states where they are found. Kill these insects on sight - they can't hurt you and can't fly very far, so they're good hunting practice! And you'll be doing something good for the environment while you're at it.
Read more here:" USDA APHIS | Spotted Lanternfly"USDA APHIS | Spotted Lanternfly