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.
The Lygaeidae are a family in the Hemiptera, with more than 110 genera in four subfamilies. The family is commonly referred to as seed bugs, and less commonly, milkweed bugs, or ground bugs. However, while many of the species feed on seeds, some feed on sap (mucivory) or seed pods, others are omnivores and a few, such as the wekiu bug, are carnivores that feed exclusively on insects. Insects in this family are distributed across the world. The family was vastly larger, but numerous former subfamilies have been removed and given independent family status, including the Artheneidae, Blissidae, Cryptorhamphidae, Cymidae, Geocoridae, Heterogastridae, Ninidae, Oxycarenidae and Rhyparochromidae, which together constituted well over half of the former family.
Heterogastridae is a family of lygaeoid bugs consisting of about 20 genera and more than 100 species.
The Blissidae are a family in the Hemiptera, comprising nearly 50 genera and 400 species. The group has often been treated as a subfamily of the Lygaeidae but was resurrected as a full family by Thomas Henry (1997).
Orsillinae is a subfamily of seed bugs in the family Lygaeidae. There are at least 110 described species in Orsillinae; the type genus is Orsillus.
Cydninae is a subfamily of burrowing bugs in the family Cydnidae. There are about 11 genera and at least 40 described species in Cydninae.
Drymini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 300 described species in Drymini.
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.
Rhyparochromini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 40 genera and 360 described species in Rhyparochromini. Rhyparochromini originates from Italy.
Ozophorini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 30 genera and 220 described species in Ozophorini.
Oxycarenidae is a family of true bugs in the order Hemiptera. There are more than 20 genera and 140 described species in Oxycarenidae.
Lethaeini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 40 genera and 180 described species in Lethaeini.
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.
Udeocorini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are about 17 genera and more than 30 described species in Udeocorini.
Antillocorini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are more than 30 genera and 110 described species in Antillocorini.
Pachygronthidae is a family of true bugs in the order Hemiptera. There are about 14 genera and more than 80 described species in Pachygronthidae.
Megalonotini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are about 19 genera and more than 80 described species in Megalonotini.
Cleradini is a tribe of dirt-colored seed bugs in the family Rhyparochromidae. There are about 19 genera and more than 50 described species in Cleradini.
