Belostomatidae
Guides
Abedus breviceps
water bug
Abedus breviceps is a giant water bug in the family Belostomatidae, characterized by exclusive paternal care behavior where males carry egg masses on their backs. Research using capture-recapture multistate modeling found no survival cost to males from brooding eggs, challenging assumptions about parental care trade-offs. The species inhabits aquatic environments in Middle and North America.
Abedus immaculatus
Abedus immaculatus is a species of giant water bug in the family Belostomatidae. It is the only Abedus species found in the eastern United States, with a range extending throughout Florida north into Georgia and west along the Gulf Coast to Mississippi. Adults measure 13–14 mm in length, making them the smallest species in the genus Abedus and the smallest belostomatid in the United States. The species is the sole member of the subgenus Microabedus. It is locally common in parts of the Everglades, where it occurs in shorter hydroperiod sites.
giant-water-bugaquatic-insectfreshwaterwetlandEvergladesendemiceastern-United-Statessmallest-belostomatid-USAmale-parental-careBelostomatidaeHemipteraMicroabedushydroperiodFloridaGeorgiaMississippiGulf-CoastThomas-Say1832Abedus-cantrallisynonymywater-bugtrue-bugNepomorphaHeteropteraInsectaArthropodaAnimaliaBelostoma
giant water bugs, electric-light bugs, toe-biters
Belostoma is a genus of giant water bugs in the family Belostomatidae, comprising approximately 70 species organized into 16 subgroups. These aquatic predators are native to freshwater habitats throughout the Americas, with highest diversity in tropical South America. The genus is distinguished by male paternal care, where males carry eggs cemented to their backs until hatching. Species range in body length from 15 to 41.5 mm.
Belostoma confusum
Belostoma confusum is a species of giant water bug in the family Belostomatidae, described by Lauck in 1959. As a member of this family, it is an aquatic predator found in freshwater habitats. The species occurs in North America and Middle America based on distribution records. Like other Belostoma species, it possesses raptorial forelegs adapted for capturing prey and likely exhibits the reversed sexual size dimorphism characteristic of the genus, where females are larger than males and males carry eggs on their backs.
Belostoma fusciventre
Belostoma fusciventre is a species of giant water bug in the family Belostomatidae, first described by Dufour in 1863. Like other members of the genus Belostoma, it is an aquatic predator inhabiting freshwater environments. The species is known from Middle America and North America, though specific details about its biology and ecology remain limited in available literature.
Belostoma minor
giant water bug
Belostoma minor is a species of giant water bug in the family Belostomatidae. It occurs in the northern Caribbean bioregion, with documented records from Cuba, the Dominican Republic, Jamaica, Puerto Rico, the U.S. Virgin Islands, and southern Florida. Like other members of its genus, it is an aquatic predator. The species was described by Palisot de Beauvois in 1820.
Belostoma testaceum
giant water bug
Belostoma testaceum is a species of giant water bug in the family Belostomatidae. It is found in the eastern United States, ranging from New York south to southern Florida and west to Texas and Michigan. Like other members of its family, it is an aquatic predator inhabiting freshwater environments.
Lethocerus
giant water bugs, toe biters, electric light bugs
Lethocerus is a genus of large predatory aquatic true bugs in the family Belostomatidae. Members are among the largest true bugs, with some species exceeding 12 cm in length. The genus is distinguished from related genera by specific morphological features of the fore femur and parasternites. Unlike other giant water bugs, females do not deposit eggs on males' backs; instead, eggs are laid on emergent vegetation above the waterline and guarded by males. The genus shows greatest diversity in the Americas, with limited representation in Europe, Africa, Australia, and Asia.
Lycostomus loripes
Lycostomus loripes is a species of giant water bug in the family Belostomatidae. The species has been documented in the Atascosa Mountains of Arizona, where adults were observed on flowers of Eysenhardtia orthocarpa (desert kidneywood). As a member of Belostomatidae, it is an aquatic predator, though specific ecological details for this species remain limited in published sources.
Nepoidea
Nepoidea is a superfamily of aquatic true bugs comprising two families: Belostomatidae (giant water bugs) and Nepidae (water scorpions). These are the largest-bodied members of the infraorder Nepomorpha and function as top predators in freshwater ecosystems. A distinctive morphological trait is the reduction and concealment of antennae in grooves behind the eyes, an adaptation to submerged aquatic life. The antennal sensilla exhibit remarkable structural diversity, with 11 morphological types identified including mechanosensilla, thermo-hygrosensilla, and olfactory sensilla that facilitate environmental sensing and prey detection.