Monotypic Hemiptera genera

thumb|Galls made by D. vitifoliae on leaf of Vitis sp. Grape phylloxera is an insect pest of grapevines worldwide, originally native to eastern North America. Grape phylloxera (Daktulosphaira vitifoliae Fitch 1855) belongs to the family Phylloxeridae, within the order Hemiptera, bugs); originally described in France as Phylloxera vastatrix; it is equated to the previously described Daktulosphaera vitifoliae and Phylloxera vitifoliae. The insect is commonly just called phylloxera (; from , leaf, and , dry).

Henicocoridae is a monotypic family of plant bugs created for the genus Henicocoris with the sole species Henicocoris monteithi. It was initially treated as a subfamily Henicocorinae under the Lygaeidae for the new genus Henicoris described in 1968 on the basis of a specimen collected in Queensland, Australia. It was later elevated to family rank and phylogenetic studies place it as a sister of the family Idiostolidae and is placed under the superorder Idiostoloidea within the Pentatomomorpha.

Aepophilus is a monotypic genus of bugs, containing the species Aepophilus bonnairei in the monotypic subfamily Aepophilinae in the monotypic family Aepophilidae of the infraorder Leptopodomorpha. It is found on the Atlantic coast of Europe.

Joppeicus paradoxus is a predatory heteropteran bug and the only member of the genus Joppeicus and the family Joppeicidae. Adults are ~3 mm long.

Aplos is a genus of issid planthopper with only one species, Aplos simplex. It can be found in most of the Eastern United States and is now found as an invasive species in Northern Italy and Austria. Aplos simplex was formerly listed under the genus Thionia. thumb|nymph with iridescent wax tail thumb|Adult

Liburniella is a genus of delphacid planthoppers in the family Delphacidae. There is at least one described species in Liburniella, L. ornata. thumb|Liburniella ornata

Flexocentrus is a genus of treehoppers in the subfamily Stegaspidinae. It contains the single species Flexocentrus felinus.

Beharus is a monotypic genus of assassin bugs belonging to the family Reduviidae. Its one described species, B. cylindripes, is found in South America, though not restricted to the Amazon basin.

Myrmecoris gracilis is a species of flightless Hemipteran bug from the family Miridae. The genus Mymecoris is monotypic with one Palaearctic species. It differs in its outward appearance and way of life from other "grass bugs" in the Stenodemini, being predatory and an effective ant mimic.

Datua is a genus of planthoppers containing the single species Datua bisinuata and placed in the tribe Pyropsini. The species is found in Borneo and Sumatra.

species of insect

Angamiana is a monotypic genus of Asian cicadas in the tribe Polyneurini, erected by William Lucas Distant.

Kaikaia is a genus of treehopper endemic to Nicaragua, containing the single species Kaikaia gaga. It was described in 2020 by Brendan Morris, a Ph.D. student at the University of Illinois at Urbana-Champaign. It entered the news when it was revealed that the insect was named after Lady Gaga.

Micrelytra fossularum is a species of European bugs belonging to the family Alydidae and type genus of the tribe Micrelytrini. It is the only representative of the monotypic genus Micrelytra.

Curalium is a genus of true bug that is the sole member of the insect family Curaliidae. Curalium contains a single species, Curalium cronini.

Achilus is the type genus of planthoppers of the family Achilidae. This may be a monotypic genus containing the type species Achilus flammeus.Kirby, 1818: which is the "red fingernail bug" and found in Australia. The placement of A. cixioides Spinola from Chile, is uncertain, but it may belong in Mnemosyne Stål, 1866 (Cixiinae}. The genus described by William Kirby in 1819.