| Adelphocoris lineolatus Goeze, 1778 | Alfalfa bug |
| Adelphocoris rapidus (Say, 1832) | ⇒ Adelphocoris superdus |
| Adelphocoris superdus | Rapid plant bug |
| Agnocoris pulverulentus Uhler, 1892 | |
| Agnocoris rubicundus Fallen, 1807 | |
| Agnocoris utahensis Moore, 1955 | |
| Apolygus lucorum Meyer-Dür, 1843 | Plant bug |
| Bolteria luteifrons Knight, 1921 | Burningbush |
| Camptozygum aequale Villers, 1789 | Plant bug |
| Capsus ater (Linnaeus, 1758) | ⇒ Capsus tristis Scholtz, 1847 |
| Capsus cinctus Kolenati, 1845 | |
| Capsus tristis Scholtz, 1847 | |
| Capsus wagneri Remane, 1950 | |
| Closterotomus fulvomaculatus De Geer, 1773 | Spotted Plant Bug |
| Closterotomus norvegicus Gmelin, 1790 | Plant bug |
| Closterotomus norwegicus Gmelin, 1790 | Potato Bug |
| Coccobaphes frontifer Walker, 1873 | |
| Dichrooscytus convexifrons Knight, 1968 | Mat amaranth |
| Dichrooscytus elegans (Heidemann, 1892) | ⇒ Dichrooscytus uhleri Wheeler & Henry, 1975 |
| Dichrooscytus flagellatus Kelton, 1972 | Jones' nailwort |
| Dichrooscytus latifrons Knight, 1968 | Mat amaranth |
| Dichrooscytus rainieri Knight, 1968 | Mat amaranth |
| Dichrooscytus repletus Heidemann, 1892 | |
| Dichrooscytus rostratus Kelton, 1972 | Jones' nailwort |
| Dichrooscytus ruberellus Knight, 1968 | Mat amaranth |
| Dichrooscytus rubidus Kelton, 1972 | Jones' nailwort |
| Dichrooscytus rufipennis Fallen, 1807 | Plant bug |
| Dichrooscytus rufusculus Kelton, 1972 | Jones' nailwort |
| Dichrooscytus suspectus Reuter, 1909 | Ornate lupine |
| Dichrooscytus uhleri Wheeler & Henry, 1975 | |
| Eurystylus coelestialium Kirkaldy, 1902 | |
| Henrilygus ultranubilus | |
| Henrylygus nubilus Van Duzee, 1914 | |
| Henrylygus ultranubilus Knight, 1917 | |
| Irbisia brachycera Uhler, 1872 | |
| Irbisia elongata Knight, 1941 | |
| Irbisia fuscipubescens Knight, 1941 | |
| Irbisia knighti Schwartz & L..., 1984 | Fringed willowherb |
| Irbisia nigripes Knight, 1925 | Povertyweed |
| Irbisia pacifica Uhler, 1872 | Pacific Grass Bug |
| Irbisia sericans Stål, 1858 | |
| Irbisia serrata Bliven, 1963 | |
| Irbisia shulli Knight, 1941 | |
| Liocoris tripustulatus Fabricius, 1781 | Common nettle bug |
| Lygidea annexa Uhler, 1872 | |
| Lygidea mendax Reuter, 1909 | Apple red bug |
| Lygidea obscura Reuter, 1909 | Ornate lupine |
| Lygidea rosacea Reuter, 1909 | Ornate lupine |
| Lygidea rubecula Uhler, 1895 | Ornate lupine |
| Lygidea salicis Knight, 1939 | Spinach |
| Lygidea viburni Knight, 1923 | |
| Lygocoris (Lygocoris) pabulinus (Linnaeus, 1761) | ⇒ Apolygus lucorum Meyer-Dür, 1843 |
| Lygocoris (Lygocoris) rugicollis Fallen, 1807 | Apple Capsid |
| Lygocoris (Neolygus) communis Knight, 1916 | Green apple bug |
| Lygocoris (Neolygus) inconspicuus Knight, 1917 | |
| Lygocoris (Neolygus) tiliae Knight, 1917 | |
| Lygocoris (Neolygus) tinctus Knight, 1917 | |
| Lygus aeratus Knight, 1917 | Saltlover |
| Lygus atriflavus Knight, 1917 | Saltlover |
| Lygus atritibialis Knight, 1941 | |
| Lygus borealis Kelton, 1955 | |
| Lygus bradleyi Knight, 1917 | Saltlover |
| Lygus ceanothi Knight, 1941 | |
| Lygus convexicollis Reuter, 1876 | Dwarf mountain lupine |
| Lygus elisus Van Duzee, 1914 | Lucerne bug |
| Lygus hesperus Knight, 1917 | Western plant bug |
| Lygus humeralis Knight, 1917 | Saltlover |
| Lygus keltoni Schwartz, 1998 | |
| Lygus lineolaris Palisot de B..., 1818 | American tarnished plant bug |
| Lygus lupini Schwartz, 1998 | |
| Lygus mexicanus Kelton, 1973 | Forked nailwort |
| Lygus plagiatus Uhler, 1895 | Bishop's goutweed |
| Lygus potentillae Kelton, 1973 | Forked nailwort |
| Lygus pratensis Linnaeus, 1758 | European tarnished plant bug |
| Lygus punctatus Zetterstedt, 1838 | |
| Lygus ravus (Stanger, 1942) | ⇒ Lygus shulli Knight, 1941 |
| Lygus robustus Uhler, 1895 | |
| Lygus rubroclarus Knight, 1917 | Saltlover |
| Lygus rubrosignatus Knight, 1923 | |
| Lygus rufidorsus Kelton, 1955 | |
| Lygus rugulipennis Poppius, 1911 | Bishop bug |
| Lygus scudderi Schwartz, 1998 | |
| Lygus shulli Knight, 1941 | |
| Lygus solidaginis Kelton, 1955 | |
| Lygus striatus Knight, 1917 | Saltlover |
| Lygus unctuosus Kelton, 1955 | |
| Lygus vanduzeei Knight, 1917 | Saltlover |
| Lygus varius Knight, 1944 | |
| Metriorrhynchomiris dislocatus Say, 1832 | |
| Metriorrhynchomiris illini Knight, 1942 | |
| Neoborella canadensis Kelton & Her..., 1978 | Baldwin's nailwort |
| Neolygus alni Knight, 1917 | |
| Neolygus atricallus Kelton, 1971 | |
| Neolygus atritylus Knight, 1917 | |
| Neolygus belfragei | |
| Neolygus belfragii Reuter, 1876 | |
| Neolygus canadensis Knight, 1917 | |
| Neolygus caryae Knight, 1917 | Hickory plant bug |
| Neolygus communis Knight, 1916 | Pear plant bug |
| Neolygus contaminatus Fallén, 1807 | |
| Neolygus fagi Knight, 1917 | |
| Neolygus hirticulus Van Duzee, 1916 | |
| Neolygus inconspicuus Knight, 1917 | |
| Neolygus knighti Kelton, 1971 | |
| Neolygus omnivagus Knight, 1917 | |
| Neolygus ostryae Knight, 1917 | |
| Neolygus parrotti Knight, 1919 | |
| Neolygus piceicola Kelton, 1971 | |
| Neolygus quercalbae Knight, 1917 | Oak bug |
| Neolygus tiliae Knight, 1917 | |
| Neolygus tinctus Knight, 1941 | |
| Neolygus viburni Knight, 1917 | |
| Neolygus viticollis | |
| Neolygus vitticollis Reuter, 1876 | |
| Neolygus walleyi Kelton, 1971 | |
| Neurocolpus jessiae Knight, 1934 | Spinach |
| Neurocolpus longirostris Knight, 1968 | Mat amaranth |
| Neurocolpus nubilis (Say, 1832) | ⇒ Neurocolpus nubilus Say, 1832 |
| Neurocolpus nubilus Say, 1832 | Clouded plant bug |
| Neurocolpus tiliae Knight, 1934 | Spinach |
| Nonlygus nubilatus Knight, 1917 | |
| Orthops scutellatus Uhler, 1877 | Harperella |
| Pappus luridus Reuter, 1909 | Pine conelet bug |
| Pappus piceicola Kelton, 1970 | |
| Pappus pseudotsugae Kelton, 1970 | |
| Pappus rolfsi Knight, 1970 | |
| Pappus rubripes Knight, 1970 | |
| Phytocoris (Ktenocoris) ulmi Linnaeus, 1758 | Plant bug |
| Phytocoris (Phytocoris) dimidiatus Kirschbaum, 1856 | Plant bug |
| Phytocoris (Phytocoris) longipennis Flor, 1861 | |
| Phytocoris (Phytocoris) populi Linnaeus, 1758 | Plant bug |
| Phytocoris (Phytocoris) tiliae Fabricius, 1777 | Plant bug |
| Phytocoris borealis Knight, 1968 | Mat amaranth |
| Phytocoris brimleyi Knight, 1974 | Crispleaf amaranth |
| Phytocoris brooksi Kelton, 1979 | Pineland nailwort |
| Phytocoris canadensis Van Duzee, 1920 | Common yampah |
| Phytocoris conspersipes Reuter, 1909 | Ornate lupine |
| Phytocoris conspurcatus Knight, 1920 | Rusty molly |
| Phytocoris crawfordi Knight, 1974 | Crispleaf amaranth |
| Phytocoris dreisbachi Knight, 1974 | Crispleaf amaranth |
| Phytocoris driesbachi | |
| Phytocoris dumicola Stonedahl, 1988 | |
| Phytocoris erectus Van Duzee, 1920 | Common yampah |
| Phytocoris eurekae Bliven, 1966 | |
| Phytocoris eximius Reuter, 1876 | Dwarf mountain lupine |
| Phytocoris fraterculus Van Duzee, 1918 | Common yampah |
| Phytocoris heidemanni Reuter, 1909 | Ornate lupine |
| Phytocoris husseyi Knight, 1923 | |
| Phytocoris inops (Uhler, 1877) | ⇒ Phytocoris canadensis Van Duzee, 1920 |
| Phytocoris jucundus Van Duzee, 1914 | Bolander's yampah |
| Phytocoris junceus Knight, 1923 | |
| Phytocoris keltoni Kerzhner & S..., 1998 | |
| Phytocoris knowltoni Knight, 1974 | Crispleaf amaranth |
| Phytocoris laevis Uhler, 1895 | |
| Phytocoris lasiomeris | |
| Phytocoris lasiomerus Reuter, 1909 | Ornate lupine |
| Phytocoris listi Knight, 1928 | Beaver povertyweed |
| Phytocoris neglectus Knight, 1920 | Rusty molly |
| Phytocoris nigricollis Knight, 1923 | |
| Phytocoris occidentalis Stonedahl, 1984 | Sevenleaf creeper |
| Phytocoris onustus Van Duzee, 1920 | Common yampah |
| Phytocoris pallidicornis Reuter, 1876 | Dwarf mountain lupine |
| Phytocoris politus Reuter, 1909 | Ornate lupine |
| Phytocoris puella Reuter, 1876 | Dwarf mountain lupine |
| Phytocoris purvus Knight, 1927 | Small povertyweed |
| Phytocoris salicis Knight, 1920 | Rusty molly |
| Phytocoris stellatus Van Duzee, 1920 | Common yampah |
| Phytocoris strigosus Knight, 1925 | Povertyweed |
| Phytocoris sulcatus Knight, 1920 | Rusty molly |
| Phytocoris tenuis Van Duzee, 1920 | Common yampah |
| Phytocoris tibialis Reuter, 1876 | Dwarf mountain lupine |
| Phytocoris uniformis Knight, 1923 | |
| Phytocoris validus Reuter, 1909 | Ornate lupine |
| Pinalitus approximatus Stål, 1858 | |
| Pinalitus rostratus Kelton, 1977 | Mountain nailwort |
| Pinalitus rubricatus Fallen, 1807 | Plant bug |
| Pinalitus solivagus Van Duzee, 1921 | |
| Poecilocapsus lineatus Fabricius, 1798 | Four-lined leaf bug |
| Polymerus (Poeciloscytus) cognatus Fieber, 1858 | |
| Polymerus (Poeciloscytus) unifasciatus Fabricius, 1794 | Plant bug |
| Polymerus (Poeciloscytus) vulneratus Wolff, 1801 | |
| Polymerus balli Knight, 1925 | Povertyweed |
| Polymerus basalis Reuter, 1876 | Nuttall's monolepis |
| Polymerus basivittis Reuter, 1909 | Povertyweed |
| Polymerus brevirostris Knight, 1925 | Povertyweed |
| Polymerus chrysopsis Knight, 1925 | Povertyweed |
| Polymerus diffusus Uhler, 1872 | |
| Polymerus flavocostatus Knight, 1926 | Nuttall's monolepis |
| Polymerus hirtus Knight, 1943 | |
| Polymerus rubrocuneatus Knight, 1925 | Povertyweed |
| Polymerus rufipes Knight, 1926 | Nuttall's monolepis |
| Polymerus sculleni Knight, 1943 | |
| Polymerus severini Knight, 1925 | Povertyweed |
| Polymerus tumidifrons Knight, 1925 | Povertyweed |
| Polymerus venaticus Uhler, 1872 | |
| Salignus distinguendus Reuter, 1875 | |
| Salignus tahoensis Knight, 1917 | |
| Stenotus binotatus Fabricius, 1794 | Plant Bug |
| Taedia colon Say, 1832 | |
| Taedia gleditsiae Knight, 1926 | |
| Taedia pallidula Mcatee, 1917 | |
| Taedia scrupea Say, 1832 | |
| Taylorilygus apicalis Fieber, 1861 | Broken-backed Bug |
| Tropidosteptes amoenus Reuter, 1909 | Ash plant bug |
| Tropidosteptes brooksi Kelton, 1978 | Livermore nailwort |
| Tropidosteptes canadensis Van Duzee, 1912 | Mother Lode yampah |
| Tropidosteptes cardinalis Uhler, 1878 | Laceflower |
| Tropidosteptes commissuralis Reuter, 1908 | |
| Tropidosteptes commisuralis | |
| Tropidosteptes pacificus Van Duzee, 1921 | |
| Tropidosteptes palmeri Reuter, 1908 | |
| Tropidosteptes pettiti (Reuter, 1909) | ⇒ Tropidosteptes pettitii Heidemann, 1892 |
| Tropidosteptes pettitii Heidemann, 1892 | |
| Tropidosteptes plagifer Reuter, 1909 | Ornate lupine |
| Tropidosteptes pubescens Knight, 1917 | |
| Tropidosteptes rufusculus Knight, 1923 | |
