Veliidae is a family of gregarious predatory insects in the suborder Heteroptera. They are commonly known as riffle bugs, small water striders, or broad-shouldered water striders because the segment immediately behind the head is wider than the rest of the abdomen. Species of the genus Rhagovelia are also referred to as ripple bugs.
Ranatra is a genus of slender predatory insects of the family Nepidae, known as water scorpions or water stick-insects. There are more than 140 Ranatra species found in freshwater habitats around the world, both in warm and temperate regions, with the highest diversity in South America and Asia. Fewer are found elsewhere, but include several African, some in North America, three from Australia and three from the Palearctic, notably the relatively well-known European R. linearis. Since Ranatra belongs to the family Nepidae which in turn belongs to the order Hemiptera, ranatrids are considered "true bugs".
Pentatominae is a subfamily of Pentatomidae, a family of shield bugs. This subfamily is the largest one within the Pentatomidae, having 4937 species classified in 938 genera. Species in this subfamily are phytophages and several of them are considered agricultural pests. Some invasive pentatomines such as Halyomorpha halys and Bagrada hilaris have been considered household pests. Higher systematics of the group have been revised by Rider et al.
Delphacidae is a family of planthoppers containing about 2000 species, distributed worldwide. Delphacids are separated from other "hoppers" by the prominent spur on the tibia of the hindleg.
Sigara is a genus of water boatmen in the family Corixidae. Some species within this genus are halophiles; for example, occurrences of the genus have been noted in the hypersaline Makgadikgadi Pans in Botswana.
Perittopus is a genus of riffle bug, and the sole genus of subfamily Perittopinae. Its species occur from southern India east to Indonesia and north to China in mountain stream habitats. Visually, the red or orange to reddish colour of Perittopus spp. separates them from other members of the Veliidae.
Phylinae is a subfamily of the plant bug family Miridae. Species of this family are found worldwide.
Laccotrephes is a genus of water scorpion belonging to the family Nepidae. They are carnivorous insects that hunt near the water surface. They are not aggressive, but may inflict a painful bite if not handled carefully, which may cause a local reaction. There are about 60 species found in shallow stagnant or slow-moving waters in warm parts of Africa, Asia and Australia.
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.
Delphacini is an important tribe of planthoppers with a world-wide distribution.
Limnometra is a genus of water striders in the family Gerridae. There are more than 30 described species in Limnometra found in Indomalaya and Oceania.
