The venerable old family Lygaeidae was, early in the 21st century, split up into numerous new families. Thus, what used to be subfamilies of Lygaeidae are now families in their own right, including for example Cymidae, Geocoridae, Pachygronthidae, and Rhyparochromidae.
Still, many common and economically important species remain in the family Lygaeidae.
As the common name implies, bugs in this family tend to feed on seeds, although there are occasional exceptions.
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