
The Lygaeoidea are a sizeable superfamily of true bugs, containing seed bugs and allies, in the order Hemiptera. There are about 16 families and more than 4,600 described species in Lygaeoidea, found worldwide. Most feed on seeds or sap, but a few are predators.

Artheneidae is a family of true bugs in the order Hemiptera. It was formerly included in Lygaeidae. There are about 7 genera and at least 20 described species in Artheneidae.

Chilacis is a genus of true bugs in the family Artheneidae. There are at least two described species in Chilacis.

Chilacis typhae, the bulrush bug, is a species of true bug in the family Artheneidae. It is found in Europe and Northern Asia and North America.

Cymidae is a family of true bugs in the order Hemiptera. There are about 12 genera and at least 60 described species in Cymidae.

Cymus is a genus of true bugs in the family Cymidae. There are at least 40 described species in Cymus.

Drymini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 50 genera and at least 300 described species in Drymini.

Drymus is a genus of dirt-colored seed bugs in the family Rhyparochromidae. There are at least 4 described species in Drymus.

Drymus crassus is a species of dirt-colored seed bugs in the family Rhyparochromidae. It is found in North America.

Dycoderus is a genus of true bugs in the family Oxycarenidae. There is one described species in Dycoderus, D. picturatus.
Eremocoris is a genus of dirt-colored seed bugs in the family Rhyparochromidae. There are at least 45 described species in the genus Eremocoris.

Geocoridae is a family of big-eyed bugs in the order Hemiptera. There are more than 30 genera and 290 described species in Geocoridae.

Geocoris punctipes, the big-eye bug, is a species of big-eyed bug in the family Geocoridae. It is found in the Caribbean, Central America, North America, Oceania, and South America.

Heterogaster is a genus of seed bugs in the family Heterogastridae. There are about 11 species, nine of the Old World, and two of the New World.
Heterogaster urticae, common name nettle ground bug, is a species of true bug in the family Heterogastridae.

Heterogastridae is a family of lygaeoid bugs consisting of about 20 genera and more than 100 species.

Ligyrocoris is a genus of dirt-colored seed bugs in the family Rhyparochromidae. There are about 14 described species in Ligyrocoris.

Malcidae is a family of true bugs in the order Hemiptera. There are at least 3 genera and more than 40 described species in Malcidae.

Metopoplax is a genus of true bugs in the family Oxycarenidae. There are at least three described species in Metopoplax.

Metopoplax ditomoides is a species of true bug in the family Oxycarenidae. Large numbers have been known to invade buildings near riparian areas during migrations from marshes.< "Pests of Landscape Trees and Shrubs." 2016. S.H. Dreistadt, J. C. Clark, T. A. Martin, M. L. Flint. University of California Statewide Integrated Pest Management Program. Oakland: UC ANR Publication 3359, 143.>

Myodochini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 80 genera and 370 described species in Myodochini.

Ninidae is a family of true bugs in the order Hemiptera. There are about 5 genera and 14 described species in Ninidae.

Oedancala is a genus of true bugs in the family Pachygronthidae. There are about 14 described species in Oedancala.

Oxycarenidae is a family of true bugs in the order Hemiptera. There are more than 20 genera and 140 described species in Oxycarenidae.

Pachygronthidae is a family of true bugs in the order Hemiptera. There are about 14 genera and more than 80 described species in Pachygronthidae.
Raglius is a genus of dirt-colored seed bugs in the family Rhyparochromidae. There are about 11 described species in Raglius.
Raglius confusus is a species of true bugs belonging to the family Rhyparochromidae.

The Rhyparochromidae are a large family of true bugs, many of which are commonly referred to as seed bugs. The family includes two subfamilies, more than 420 genera, and over 2,100 described species.

Xanthochilus is a genus of true bugs belonging to the family Rhyparochromidae. Xanthochilus is often considered a subgenus of Rhyparochromus.
Xanthochilus saturnius, the Mediterranean seed bug, is a species of true bugs belonging to the family Rhyparochromidae.