Definition of milkweed bug
: a large black and reddish-orange bug (Oncopeltus fasciatus) that feeds chiefly on milkweed
First Known Use of milkweed bug
Learn More about milkweed bug
Britannica.com: Encyclopedia article about "milkweed bug"
Seen and Heard
What made you want to look up milkweed bug? Please tell us where you read or heard it (including the quote, if possible).