Lygaeoidea

Geocoridae is a family of big-eyed bugs in the order Hemiptera. There are more than 290 described species in Geocoridae. thumb|Ninyas torvus

The Rhyparochromidae are a large family of true bugs (order Hemiptera). Many species under Rhyparochromidae are commonly referred to as seed bugs, as are other species within the wider Pentatomomorpha. The family includes two subfamilies, more than 420 genera, and over 2,100 described species.

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.

Idiostolidae is a family of true bugs distributed within the southern hemisphere which was formerly placed in the superfamily Lygaeoidea but in 1964 it was placed in the superfamily Idiostoloidea and later included within it as a sister family of the Henicocoridae. It was described in 1962.

Malcidae is a family of true bugs in the order Hemiptera. There are at least 4 genera and more than 40 described species in Malcidae.

Oxycarenidae is a family of true bugs in the order Hemiptera with a world-wide distribution. There are more than 140 described species in Oxycarenidae. thumb|Oxycarenus modestus

Artheneidae is a family of true bugs in the order Hemiptera. It was previously classified within the family Lygaeidae. Approximately 7 genera and at least 20 described species belong to the family Artheneidae. thumb|Chilacis typhae

Cymidae is a family of true bugs in the order Hemiptera. There are at least 60 described species in Cymidae. thumb|Cymus novaezelandiae

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

Pachygronthidae is a family of true bugs in the order Hemiptera. There are two subfamilies (both erected by Carl Stål) and more than 80 described species in Pachygronthidae. thumb|Pachygrontha oedancalodes

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

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Cryptorhamphidae is a family of true bugs in the order Hemiptera. There are at least two genera and four described species in Cryptorhamphidae.

Colobathristidae is a family of true bugs in the order Hemiptera. There are more than 20 genera and 90 described species in Colobathristidae.

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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.

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

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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.

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

Cymodema is a genus of true bugs in the family Cymidae. There are about seven described species in Cymodema.

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Ligyrocoris is a genus of dirt-colored seed bugs in the family Rhyparochromidae. There are about 13 described species in Ligyrocoris, found in the Northern hemisphere. thumb|Ligyrocoris barberi, Oklahoma

Meschiidae is a family of true bugs in the order Hemiptera. It comprises at least three genera and about five described species within the Meschiidae family.

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Cymoninus is a genus of true bugs in the family Ninidae. There are at least four described species in Cymoninus.

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Isthmocoris is a genus of big-eyed bugs in the family Geocoridae. There are at least four described species in Isthmocoris.

Crophius is a genus of true bugs in the family Oxycarenidae. There are about 16 described species in Crophius.

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

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Henestaris is a genus of mostly European bugs, it is typical of the subfamily Henestarinae.

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