Philaenus

Philaenus is a genus of insects belonging to the family Aphrophoridae, the spittlebugs.

The meadow spittlebug Philaenus spumarius is a common insect in much of the Northern Hemisphere, and it is sometimes a pest on crops such as alfalfa. It is important to science because its entire genome has been sequenced. It has also been the subject of many studies of genetic diversity because it displays marked color polymorphism. There are eleven known color phenotypes, with individuals taking various dark, pale, mottled, and striped patterns. Most other Philaenus species are also color polymorphic.