| Adelphocoris rapidus (Say, 1832) | ⇒ Adelphocoris superdus |
| Aoplonema nigrum Forero, 2008 | |
| Aoplonema rubrum Forero, 2008 | |
| Aoplonemella festiva Van Duzee, 1910 | |
| Arctostaphylocoris arizonensis Schuh & Schw..., 2004 | |
| Argyrocoris scurrilis Van Duzee, 1912 | Mother Lode yampah |
| Arizonapsallus stonedahli Schuh, 2006 | |
| Atractotomus acaciae Knight, 1925 | Povertyweed |
| Atractotomus albidicoxis Reuter, 1909 | Ornate lupine |
| Atractotomus arizonae Knight, 1968 | |
| Atractotomus balli Knight, 1931 | Boraxweed |
| Atractotomus nicholi Knight, 1968 | |
| Atractotomus ovatus Knight, 1926 | |
| Atractotomus prosopidis Knight, 1968 | |
| Atractotomus quercinus Stonedahl, 1990 | |
| Atractotomus schwartzi Stonedahl, 1990 | |
| Autumnimiris albescens Van Duzee, 1925 | |
| Autumnimiris koebelei Van Duzee, 1921 | |
| Autumnimiris roseus Distant, 1883 | |
| Autumnimiris rubicundus Uhler, 1872 | |
| Ballella basicornis Knight, 1959 | Tidalmarsh amaranth |
| Bisulcopsallus croceguttatus Knight, 1964 | |
| Bisulcopsallus fulvipunctatus Knight, 1964 | |
| Bisulcopsallus fuscipunctatus Knight, 1964 | |
| Bisulcopsallus huachucae Knight, 1964 | |
| Bisulcopsallus pallidus Schuh, 2006 | |
| Bisulcopsallus polhemorum Schuh, 2006 | |
| Bisulcopsallus texanus Knight, 1964 | |
| Bolteria amicta Uhler, 1887 | Florida water-parsnip |
| Bolteria arizonae Knight, 1971 | Love-lies-bleeding |
| Bolteria juniperi Knight, 1968 | Mat amaranth |
| Bolteria nicholi Knight, 1928 | Beaver povertyweed |
| Bothynotus barberi Knight, 1933 | Greasewood |
| Brooksetta azteci Knight, 1968 | |
| Brooksetta malvastri Knight, 1968 | |
| Brooksetta nicholi Knight, 1927 | |
| Calidroides schaffneri Schwartz, 2005 | |
| Caulotops agavis Reuter, 1909 | Ornate lupine |
| Caulotops barberi Knight, 1926 | Nuttall's monolepis |
| Ceratocapsus apicalis Knight, 1925 | Povertyweed |
| Ceratocapsus barberi Knight, 1930 | Amargosa niterwort |
| Ceratocapsus clavicornis Knight, 1925 | Povertyweed |
| Ceratocapsus denticulatus Knight, 1925 | Povertyweed |
| Ceratocapsus elongatus Uhler, 1894 | |
| Ceratocapsus fanseriae Knight, 1930 | Amargosa niterwort |
| Ceratocapsus fascipennis Knight, 1930 | Amargosa niterwort |
| Ceratocapsus juglandis Knight, 1930 | Amargosa niterwort |
| Ceratocapsus neoboroides Knight, 1930 | Amargosa niterwort |
| Ceratopsallus pintoi Schuh, 2006 | |
| Ceratopsallus quercicola Schuh, 2006 | |
| Ceratopsallus vauqueliniae Schuh, 2006 | |
| Chaetofoveolocoris hirsutus Knight, 1968 | |
| Chaetofoveolocoris parsoni Schwartz, 1989 | |
| Chlamydatus (Euattus) pulicarius Fallen, 1807 | |
| Chlamydatus associatus Uhler, 1872 | Ragweed bug |
| Chlamydatus monilipes Van Duzee, 1921 | Howell's yampah |
| Chlamydatus obliquus Uhler, 1893 | |
| Chlamydatus pallidicornis Knight, 1964 | Sandhill amaranth |
| Chlamydatus suavis Reuter, 1876 | |
| Clivinema bonita Knight, 1928 | Beaver povertyweed |
| Clivinema regalis (Knight, 1917) | ⇒ Clivinema regale Knight, 1917 |
| Conocephalocoris nasicus Knight, 1927 | Small povertyweed |
| Coquillettia ajo Knight, 1968 | Mat amaranth |
| Coquillettia albella Knight, 1968 | Mat amaranth |
| Coquillettia albiclava Knight, 1925 | Povertyweed |
| Coquillettia alpina Polhemus & P..., 1988 | |
| Coquillettia attica Bliven, 1962 | |
| Coquillettia foxi Van Duzee, 1921 | Howell's yampah |
| Coquillettia impluviata Wyniger, 2012 | |
| Coquillettia lactea Wyniger, 2012 | |
| Coquillettia laticeps Knight, 1927 | |
| Coquillettia nigrithorax Knight, 1930 | Amargosa niterwort |
| Coquillettia obscura Wyniger, 2012 | |
| Coquillettia pergrandis Wyniger, 2012 | |
| Coquillettia polhemorum Wyniger, 2012 | |
| Coquillettia schwartzi Wyniger, 2012 | |
| Coquillettia soligena Bliven, 1962 | |
| Coquillettia venusta Wyniger, 2012 | |
| Coridromius chenopoderis Tatarnic & C..., 2008 | Plant bug |
| Corticoris libertus Gibson, 1917 | |
| Corticoris signatus Heidemann, 1908 | |
| Corticoris unicolor Heidemann, 1908 | |
| Cyrtopeltocoris ajo Knight, 1968 | Mat amaranth |
| Cyrtopeltocoris albofasciatus Reuter, 1876 | Dwarf mountain lupine |
| Cyrtopeltocoris arizonae Knight, 1968 | Mat amaranth |
| Cyrtopeltocoris barberi Knight, 1968 | Mat amaranth |
| Cyrtopeltocoris conicatus Knight, 1968 | Mat amaranth |
| Cyrtopeltocoris huachucae Knight, 1968 | Mat amaranth |
| Daleapidea albescens Van Duzee, 1918 | |
| Deraeocoris apache Knight, 1921 | Burningbush |
| Deraeocoris atriventris Knight, 1921 | Burningbush |
| Deraeocoris barberi Knight, 1921 | Burningbush |
| Deraeocoris bullatus Knight, 1921 | Burningbush |
| Deraeocoris cochise Razafimahatr..., 1982 | Red pea |
| Deraeocoris comanche Knight, 1921 | Burningbush |
| Deraeocoris fulvescens Reuter, 1909 | |
| Deraeocoris fulvus Knight, 1921 | Burningbush |
| Deraeocoris gilensis Razafimahatr..., 1982 | Red pea |
| Deraeocoris manitou Van Duzee, 1920 | Burningbush |
| Deraeocoris navajo Knight, 1921 | Burningbush |
| Deraeocoris picipes Knight, 1921 | Burningbush |
| Diaphnidia debilis Uhler, 1895 | Bishop's goutweed |
| Dichaetocoris coloradensis Knight, 1968 | Mat amaranth |
| Dichaetocoris geronimo Polhemus, 1985 | Humboldt County milkvetch |
| Dichaetocoris spinosus Knight, 1925 | |
| Dichrooscytus barberi Knight, 1925 | Povertyweed |
| Dichrooscytus brevirostris Kelton, 1972 | Jones' nailwort |
| Dichrooscytus dentatus Kelton, 1972 | Jones' nailwort |
| Dichrooscytus flavivenosus Knight, 1968 | Mat amaranth |
| Dichrooscytus latifrons Knight, 1968 | Mat amaranth |
| Dichrooscytus minimus Knight, 1968 | Mat amaranth |
| Dichrooscytus rostratus Kelton, 1972 | Jones' nailwort |
| Dichrooscytus rufivenosus Knight, 1968 | Mat amaranth |
| Dicyphus (Dicyphus) stitti Knight, 1968 | Mat amaranth |
| Engytatus modestus Distant, 1893 | Tomato bug |
| Ephedrodoma multilineata Polhemus & P..., 1984 | Ackerman's milkvetch |
| Europiella angulata Uhler, 1895 | |
| Europiella pilosula Uhler, 1893 | |
| Europiella signicornis Knight, 1969 | |
| Europiella umbrina (Reuter, 1909) | ⇒ Europiella stigmosus Uhler, 1893 |
| Eurychilopterella barberi Knight, 1927 | Small povertyweed |
| Eurychilopterella keltoni Stonedahl, 1997 | |
| Eustictus albocuneatus Knight, 1927 | Small povertyweed |
| Eustictus catulus Uhler, 1894 | |
| Eustictus clarus Knight, 1925 | Povertyweed |
| Eustictus hirsutipes Knight, 1925 | Povertyweed |
| Eustictus morrisoni Knight, 1925 | Povertyweed |
| Eustictus obscurus Knight, 1925 | Povertyweed |
| Eustictus productus Knight, 1925 | Povertyweed |
| Eustictus pusillus Uhler, 1887 | |
| Galbinocoris caepa Weirauch, 2006 | |
| Ganocapsus filiformis Van Duzee, 1912 | Mother Lode yampah |
| Garganus splendidus Distant, 1893 | |
| Gracilimiris strigosus Stonedahl & ..., 1991 | |
| Gracilimiris wheeleri Stonedahl & ..., 1991 | |
| Guentherocoris atritibialis Knight, 1930 | |
| Hadronema (Hadronema) bispinosum Knight, 1928 | Beaver povertyweed |
| Hadronema (Hadronema) breviatum Knight, 1928 | Beaver povertyweed |
| Hadronema (Hadronema) militare Uhler, 1872 | Herbwilliam |
| Hadronema (Hadronema) pictum Uhler, 1895 | Bishop's goutweed |
| Hadronema (Hadronema) simplex Knight, 1928 | Beaver povertyweed |
| Hadronema (Hadronema) sinuatum Knight, 1928 | Beaver povertyweed |
| Halticotoma andrei Knight, 1968 | Mat amaranth |
| Halticotoma cornifer (Knight, 1928) | ⇒ Halticotoma cornifera Knight, 1928 |
| Halticotoma nicholi Knight, 1928 | Beaver povertyweed |
| Halticotoma valida Townsend, 1892 | Yucca bug |
| Hamatophylus guttulosus Reuter, 1876 | |
| Heidemanniella scutellaris Poppius, 1914 | Bolander's milkvetch |
| Henrylygus ultranubilus Knight, 1917 | |
| Hesperophylum arizonae Knight, 1968 | Mat amaranth |
| Horcias notatus Distant, 1884 | |
| Ilnacora arizonae Knight, 1963 | Pigweed |
| Ilnacora furcata Knight, 1963 | Pigweed |
| Ilnacora nicholi Knight, 1963 | Pigweed |
| Ilnacora santacatalinae Knight, 1963 | Pigweed |
| Ilnacora spicata Knight, 1963 | Pigweed |
| Ilnacora stalii Reuter, 1876 | Dwarf mountain lupine |
| Irbisia oreas Bliven, 1963 | |
| Irbisia solani Heidemann, 1910 | |
| Knightomiris distinctus Knight, 1917 | |
| Knightomiroides nigrovirgatus Knight, 1930 | |
| Knightopsallus portalensis Schuh, 2006 | |
| Labopidea arizonae Knight, 1928 | Beaver povertyweed |
| Lampethusa nicholi Knight, 1933 | Greasewood |
| Largidea arizonae Knight, 1968 | Mat amaranth |
| Largidea balli Knight, 1968 | Mat amaranth |
| Largidea stitti Knight, 1968 | Mat amaranth |
| Leutiola ajo Knight, 1968 | |
| Leutiola mapa Wyniger, 2012 | |
| Lineatopsallus biguttulatus Uhler, 1894 | |
| Lopidea anisacanthi Knight, 1962 | Greenstripe |
| Lopidea apache Knight, 1918 | Barilla |
| Lopidea arizonae Knight, 1918 | Barilla |
| Lopidea balli Knight, 1923 | |
| Lopidea barberi Knight, 1962 | Greenstripe |
| Lopidea confraterna Gibson, 1918 | |
| Lopidea eremita Van Duzee, 1921 | Howell's yampah |
| Lopidea falcicula Knight, 1923 | |
| Lopidea garryae Knight, 1918 | Barilla |
| Lopidea lateralis Knight, 1918 | Barilla |
| Lopidea major Knight, 1918 | Barilla |
| Lopidea minima Knight, 1918 | Barilla |
| Lopidea nicholella Knight, 1965 | Southern amaranth |
| Lopidea nigridia serica Knight, 1923 | |
| Lopidea scutata Knight, 1962 | Greenstripe |
| Lopidea ute Knight, 1923 | |
| Lopidella flavoscuta Knight, 1925 | Povertyweed |
| Lygidea deraeocorides | |
| Lygidea desertus | |
| Lygocoris (Lygocoris) pabulinus (Linnaeus, 1761) | ⇒ Apolygus lucorum Meyer-Dür, 1843 |
| Lygocoris deraeocoroides Knight, 1925 | |
| Lygus atriflavus Knight, 1917 | Saltlover |
| Lygus ceanothi Knight, 1941 | |
| Lygus deraeocorides | |
| Lygus elisus Van Duzee, 1914 | Lucerne bug |
| Lygus hesperus Knight, 1917 | Western plant bug |
| Lygus keltoni Schwartz, 1998 | |
| Lygus lineolaris Palisot de B..., 1818 | American tarnished plant bug |
| Lygus mexicanus Kelton, 1973 | Forked nailwort |
| Lygus robustus Uhler, 1895 | |
| Lygus shulli Knight, 1941 | |
| Lygus striatus Knight, 1917 | Saltlover |
| Macrolophus mimuli Knight, 1968 | Mat amaranth |
| Macrotylus amoenus Reuter, 1909 | Ornate lupine |
| Macrotylus geminus Knight, 1925 | Povertyweed |
| Megacoelum pusillum Uhler, 1887 | |
| Megaloceroea punctata | |
| Megalopsallus brendae Schuh, 2000 | |
| Megalopsallus humeralis Van Duzee, 1923 | |
| Megalopsallus marmoratus Knight, 1968 | Mat amaranth |
| Megalopsallus nicholi Knight, 1968 | |
| Megalopsallus nigricaput Schuh, 2000 | |
| Megalopsallus nigrofemoratus Knight, 1968 | |
| Megalopsallus pallipes Knight, 1968 | |
| Megalopsallus pictipes Van Duzee, 1918 | |
| Megalopsallus punctatus Schuh, 2000 | |
| Megalopsallus punctipes Knight, 1968 | |
| Megalopsallus rubricornis Knight, 1968 | |
| Megalopsallus rubropictipes Knight, 1927 | Small povertyweed |
| Megalopsallus sarcobati Knight, 1969 | |
| Megalopsallus schwartzi Schuh, 2000 | |
| Megalopsallus sparsus Van Duzee, 1918 | |
| Melanotrichus nicholi | |
| Melymacra apicalis Van Duzee, 1916 | |
| Neoborella pseudotsugae Kelton & Her..., 1978 | Baldwin's nailwort |
| Neoborella simplex Reuter, 1908 | |
| Neoborops vigilax Uhler, 1895 | Bishop's goutweed |
| Neocapsus fasciativentris Stal, 1862 | |
| Neocapsus leviscutatus Knight, 1925 | |
| Neurocolpus arizonae Knight, 1934 | Spinach |
| Neurocolpus mexicanus Distant, 1883 | |
| Neurocolpus montanus Knight, 1968 | Mat amaranth |
| Neurocolpus nicholi Knight, 1968 | Mat amaranth |
| Neurocolpus simplex Van Duzee, 1918 | Common yampah |
| Nicholia eriogoni Knight, 1929 | Niterwort |
| Noctuocoris conspurcatus Schwartz & S..., 1986 | Fringed willowherb |
| Nonlygus nubilatus Knight, 1917 | |
| Notholopisca californica Knight, 1933 | |
| Occidentodema clypealis Henry, 2000 | |
| Occidentodema mcfarlandi Henry, 2000 | |
| Occidentodema polhemusi Henry, 2000 | |
| Oligotylus ceanothi Schuh, 2000 | |
| Oligotylus cercocarpicola Knight, 1930 | |
| Oligotylus meridionalis Schuh, 2000 | |
| Oligotylus paracarneatus Schuh, 2000 | |
| Oligotylus purshiae Knight, 1968 | |
| Oligotylus yavapaiensis Schuh, 2000 | |
| Oncerometopus atriscutis Knight, 1928 | Beaver povertyweed |
| Oncerometopus impictus Knight, 1928 | Beaver povertyweed |
| Oncerometopus nicholi Knight, 1928 | Beaver povertyweed |
| Oncerometopus nigriclavus Reuter, 1876 | Dwarf mountain lupine |
| Origonema splendida E.Gibson, 1918 | |
| Orthotylus (Orthotylus) minuendus Knight, 1925 | Povertyweed |
| Orthotylus (Orthotylus) nyctalis Knight, 1927 | Small povertyweed |
| Orthotylus mimus Knight, 1927 | |
| Orthotylus stitti Knight, 1968 | |
| Orthotylus vestitus Uhler, 1890 | |
| Pamillia nyctalis Knight, 1925 | Povertyweed |
| Pamillia pilosella Knight, 1925 | Povertyweed |
| Pappus andrei Knight, 1970 | |
| Pappus balli Knight, 1970 | |
| Pappus fuliginosus Knight, 1918 | |
| Pappus grandis Knight, 1918 | |
| Pappus hirtus Knight, 1970 | |
| Pappus intermedius Knight, 1918 | |
| Pappus knighti Kelton, 1970 | |
| Pappus piceicola Kelton, 1970 | |
| Pappus pilosipes Kelton, 1970 | |
| Pappus scutellatus Kelton, 1970 | |
| Pappus vanduzeei Usinger, 1931 | |
| Parthenicus albellus Knight, 1925 | Povertyweed |
| Parthenicus aureopictus | |
| Parthenicus aureopubescens | |
| Parthenicus aureosquamis Knight, 1925 | Povertyweed |
| Parthenicus baccharidis Knight, 1925 | Povertyweed |
| Parthenicus barberi | |
| Parthenicus boutelouae Knight, 1968 | Mat amaranth |
| Parthenicus cercocarpi Knight, 1968 | Mat amaranth |
| Parthenicus covilleae Van Duzee, 1918 | Common yampah |
| Parthenicus cowaniae Knight, 1968 | Mat amaranth |
| Parthenicus cuneotinctus Knight, 1925 | Povertyweed |
| Parthenicus deleticus Knight, 1968 | Mat amaranth |
| Parthenicus fumatus | |
| Parthenicus fuscipilus Knight, 1968 | Mat amaranth |
| Parthenicus fuscosus Knight, 1968 | Mat amaranth |
| Parthenicus granulatus | |
| Parthenicus irroratus Knight, 1968 | Mat amaranth |
| Parthenicus micans Knight, 1925 | Povertyweed |
| Parthenicus nicholellus Knight, 1968 | Mat amaranth |
| Parthenicus nicholi Knight, 1925 | Povertyweed |
| Parthenicus obscurus | |
| Parthenicus obsoletus Knight, 1968 | Mat amaranth |
| Parthenicus oreades Knight, 1925 | Povertyweed |
| Parthenicus pallipes Knight, 1968 | Mat amaranth |
| Parthenicus pictus Knight, 1925 | Povertyweed |
| Parthenicus pinicola Knight, 1968 | Mat amaranth |
| Parthenicus reductus | |
| Parthenicus rubrinervis Knight, 1925 | Povertyweed |
| Parthenicus rubromaculosus Knight, 1968 | Mat amaranth |
| Parthenicus rubropunctipes Knight, 1968 | Mat amaranth |
| Parthenicus rufiguttatus Knight, 1968 | |
| Parthenicus rufistigmosus | |
| Parthenicus rufivenosus Knight, 1925 | Povertyweed |
| Parthenicus rufusculus Knight, 1925 | Povertyweed |
| Parthenicus santaritae | |
| Parthenicus selectus Knight, 1925 | Povertyweed |
| Parthenicus tibialis | |
| Phoenicocoris longirostris Knight, 1968 | |
| Phoenicocoris nevadensis Schwartz & S..., 2004 | |
| Phoenicocoris ponderosae Schwartz & S..., 2004 | |
| Phoradendrepulus myrmecomorphus Polhemus & P..., 1985 | |
| Phymatopsallus acaciae Knight, 1964 | Sandhill amaranth |
| Phymatopsallus dubiosus Van Duzee, 1918 | |
| Phymatopsallus patagoniae Knight, 1964 | Sandhill amaranth |
| Phymatopsallus riconae | |
| Phymatopsallus rinconae Knight, 1964 | Sandhill amaranth |
| Phymatopsallus tuberculatus Van Duzee, 1923 | |
| Phytocoris acaciae Knight, 1974 | Crispleaf amaranth |
| Phytocoris aesculinus Stonedahl, 1988 | |
| Phytocoris albellus Knight, 1934 | Spinach |
| Phytocoris albicuneatus Stonedahl, 1988 | |
| Phytocoris albidopictus Knight, 1961 | |
| Phytocoris albifrons Knight, 1968 | Mat amaranth |
| Phytocoris alpestris Stonedahl, 1988 | |
| Phytocoris angustatus Knight, 1961 | |
| Phytocoris angusticollis Knight, 1925 | Povertyweed |
| Phytocoris apache Knight, 1928 | Beaver povertyweed |
| Phytocoris aridus Stonedahl, 1988 | |
| Phytocoris arizonensis Stonedahl, 1988 | |
| Phytocoris atriscutum Stonedahl, 1988 | |
| Phytocoris auranti Stonedahl, 1988 | |
| Phytocoris baboquivari Stonedahl, 1988 | |
| Phytocoris becki Knight, 1968 | Mat amaranth |
| Phytocoris berbericola Stonedahl, 1988 | |
| Phytocoris borregoi Stonedahl, 1988 | |
| Phytocoris brevicornis Knight, 1968 | Mat amaranth |
| Phytocoris brevisetosus Stonedahl, 1988 | |
| Phytocoris carnosulus Van Duzee, 1920 | Common yampah |
| Phytocoris catalinae Stonedahl, 1988 | |
| Phytocoris chihuahuanae Stonedahl, 1988 | |
| Phytocoris cinereus Stonedahl, 1988 | |
| Phytocoris cochise Stonedahl, 1988 | |
| Phytocoris comulus Knight, 1928 | Beaver povertyweed |
| Phytocoris conspurcatus Knight, 1920 | Rusty molly |
| Phytocoris coronadoi Stonedahl, 1988 | |
| Phytocoris corticola Stonedahl, 1988 | |
| Phytocoris cowaniae Stonedahl, 1988 | |
| Phytocoris decorus Reuter, 1909 | |
| Phytocoris desertinus Stonedahl, 1988 | |
| Phytocoris difformis Knight, 1934 | Spinach |
| Phytocoris electilis Stonedahl, 1988 | |
| Phytocoris empirensis Knight, 1968 | Mat amaranth |
| Phytocoris ephedrae (Knight, 1961) | ⇒ Phytocoris ventralis Van Duzee, 1912 |
| Phytocoris fuscipennis Knight, 1934 | Spinach |
| Phytocoris geniculatus Van Duzee, 1918 | Common yampah |
| Phytocoris hopi Knight, 1928 | Beaver povertyweed |
| Phytocoris huachuca Stonedahl, 1988 | |
| Phytocoris hualapai Stonedahl, 1988 | |
| Phytocoris hypoleucoides Stonedahl, 1988 | |
| Phytocoris intermontanus Stonedahl, 1988 | |
| Phytocoris juniperanus Knight, 1968 | Mat amaranth |
| Phytocoris kiowa Stonedahl, 1988 | |
| Phytocoris kuschei Stonedahl, 1988 | |
| Phytocoris lineatus Reuter, 1909 | Ornate lupine |
| Phytocoris listi Knight, 1928 | Beaver povertyweed |
| Phytocoris lycii Stonedahl, 1988 | |
| Phytocoris maricopae Stonedahl, 1988 | |
| Phytocoris mellarius Knight, 1925 | Povertyweed |
| Phytocoris miniatus Knight, 1961 | |
| Phytocoris mirus Knight, 1928 | Beaver povertyweed |
| Phytocoris navajo Stonedahl, 1988 | |
| Phytocoris nicholi Knight, 1928 | Beaver povertyweed |
| Phytocoris piceicola Knight, 1928 | Beaver povertyweed |
| Phytocoris planituberis Stonedahl, 1988 | |
| Phytocoris polhemusi Stonedahl, 1988 | |
| Phytocoris praealtus Stonedahl, 1988 | |
| Phytocoris pulchellus Knight, 1934 | Spinach |
| Phytocoris pulchricollis Van Duzee, 1923 | Lemmon's yampah |
| Phytocoris quadricinctus (Knight, 1968) | ⇒ Phytocoris ventralis Van Duzee, 1912 |
| Phytocoris quercicola Knight, 1920 | Rusty molly |
| Phytocoris quercinus Stonedahl, 1988 | |
| Phytocoris ramosus Uhler, 1894 | Goutweed |
| Phytocoris relativus Knight, 1968 | Mat amaranth |
| Phytocoris reticulatus Knight, 1968 | Mat amaranth |
| Phytocoris roseipennis Knight, 1934 | Spinach |
| Phytocoris roseotinctus Knight, 1925 | Povertyweed |
| Phytocoris roseus Uhler, 1894 | |
| Phytocoris rubrocuneatus Stonedahl, 1988 | |
| Phytocoris rubroornatus Knight, 1961 | |
| Phytocoris schwartzi Stonedahl, 1988 | |
| Phytocoris seminotatus Knight, 1934 | Spinach |
| Phytocoris squamosus Knight, 1934 | Spinach |
| Phytocoris stitti Knight, 1961 | |
| Phytocoris stonedahli Kerzhner & S..., 1995 | |
| Phytocoris strigosus Knight, 1925 | Povertyweed |
| Phytocoris tenerum Stonedahl, 1988 | |
| Phytocoris torridus Stonedahl, 1988 | |
| Phytocoris tricinctus Knight, 1968 | Mat amaranth |
| Phytocoris umbrosus Knight, 1928 | Beaver povertyweed |
| Phytocoris validus Reuter, 1909 | Ornate lupine |
| Phytocoris vanduzeei Reuter, 1912 | Mt. Diablo lupine |
| Phytocoris varius Knight, 1934 | Spinach |
| Phytocoris yavapai Stonedahl, 1988 | |
| Phytocoris yuma Knight, 1961 | |
| Pilophoropsis brachypterus Poppius, 1914 | |
| Pilophoropsis nicholi Knight, 1927 | |
| Pilophorus americanus Poppius, 1914 | Bolander's milkvetch |
| Pilophorus balli Knight, 1968 | Mat amaranth |
| Pilophorus buenoi Poppius, 1914 | Bolander's milkvetch |
| Pilophorus chiricahuae Knight, 1968 | Mat amaranth |
| Pilophorus clavicornis Poppius, 1914 | Bolander's milkvetch |
| Pilophorus discretus Van Duzee, 1918 | Common yampah |
| Pilophorus dislocatus Knight, 1968 | Mat amaranth |
| Pilophorus exiguus Poppius, 1914 | Bolander's milkvetch |
| Pilophorus explanatus Schuh & Schw..., 1988 | |
| Pilophorus fuscipennis Knight, 1926 | Nuttall's monolepis |
| Pilophorus minutus Knight, 1973 | Spreading amaranth |
| Pilophorus tibialis Van Duzee, 1918 | Common yampah |
| Pilophorus vicarius Poppius, 1914 | Bolander's milkvetch |
| Pinalitus rubrotinctus Knight, 1968 | Mat amaranth |
| Pinalitus solivagus Van Duzee, 1921 | |
| Pinomiris knighti Kerzhner & S..., 1995 | |
| Plagiognathus brevicornis Knight, 1929 | |
| Plagiognathus flavus Knight, 1964 | Sandhill amaranth |
| Plagiognathus fuscipes Knight, 1929 | Niterwort |
| Plagiognathus grandis Reuter, 1876 | Dwarf mountain lupine |
| Plagiognathus longipennis Uhler, 1895 | |
| Plagiognathus louisianus Schuh, 2001 | |
| Plagiognathus luteus Knight, 1929 | Niterwort |
| Plagiognathus moerens Reuter, 1909 | Ornate lupine |
| Plagiognathus notodysmicos Schuh, 2001 | |
| Plagiognathus pemptos Schuh, 2001 | |
| Plagiognathus piceicola Schuh, 2001 | |
| Plagiognathus shoshonea Knight, 1964 | Sandhill amaranth |
| Plagiognathus stitti Knight, 1964 | Sandhill amaranth |
| Plagiognathus suffuscipennis Knight, 1923 | |
| Plagiognathus tenellus Knight, 1929 | Niterwort |
| Plesiodema polhemi Schwartz & S..., 1999 | |
| Poecilocapsus lineatus Fabricius, 1798 | Four-lined leaf bug |
| Polymerus fasciolus Knight, 1943 | |
| Polymerus uhleri Van Duzee, 1914 | |
| Polymerus vittatipennis Knight, 1943 | |
| Proba sallei Stål, 1862 | |
| Pronotocrepis clavicornis Knight, 1929 | Niterwort |
| Psallovius dimorphicus Schwartz & S..., 1999 | |
| Psallovius flaviclavus Knight, 1930 | |
| Psallovius nigroantennatus Schwartz & S..., 1999 | |
| Psallovius rubrofemoratus Knight, 1930 | |
| Psallus nicholi | |
| Psallus tinctipennis | |
| Pseudatomoscelis flora Van Duzee, 1923 | |
| Pseudatomoscelis seriatus Reuter, 1876 | Cotton fleahopper |
| Pseudopsallus angularis Uhler, 1894 | |
| Pseudopsallus anograe Knight, 1930 | Amargosa niterwort |
| Pseudopsallus demensus Van Duzee, 1925 | |
| Pseudopsallus lajuntae Stonedahl & ..., 1986 | American ivy |
| Pseudopsallus puberus Uhler, 1894 | |
| Pseudopsallus stitti Knight, 1968 | |
| Pseudopsallus tiquiliae Schwartz, 2005 | |
| Pseudopsallus viridicans Knight, 1930 | |
| Pycnoderes quadrimaculatus Guérin-Ménev..., 1857 | Bean capsid |
| Pygovepres vaccinicola Knight, 1930 | |
| Ranzovius agelenopsis Henry, 1984 | |
| Ranzovius clavicornis Knight, 1927 | |
| Ranzovius moerens Reuter, 1905 | |
| Reuteroscopus basicornis Knight, 1965 | Southern amaranth |
| Reuteroscopus dreisbachi Knight, 1965 | Southern amaranth |
| Reuteroscopus femoralis Kelton, 1964 | Drummond's nailwort |
| Reuteroscopus longirostris Knight, 1925 | Povertyweed |
| Reuteroscopus nicholi Knight, 1930 | |
| Reuteroscopus ornatus Reuter, 1876 | Ornate Plant Bug |
| Reuteroscopus pallidiclavus Knight, 1965 | Southern amaranth |
| Reuteroscopus santaritae Knight, 1965 | Southern amaranth |
| Reuteroscopus tinctipennis Knight, 1925 | |
| Rhinacloa callicrates Herring, 1971 | Goldenseal |
| Rhinacloa forticornis Reuter, 1876 | Black fleahopper |
| Roburocoris exiguus Weirauch, 2009 | |
| Roburocoris maculosus Knight, 1925 | |
| Salicopsallus lucidus Van Duzee, 1918 | |
| Salicopsallus schwartzi Schuh, 2006 | |
| Scalponotatus albibasis Knight, 1938 | |
| Scalponotatus maturus Kelton, 1969 | |
| Semium subglaber Knight, 1927 | |
| Semium subglabrum Knight, 1927 | Small povertyweed |
| Sericophanes fuscicornis Knight, 1968 | Mat amaranth |
| Sericophanes triangularis Knight, 1918 | Barilla |
| Sixeonotus bebbiae Knight, 1968 | Mat amaranth |
| Sixeonotus dextratus Knight, 1928 | Beaver povertyweed |
| Sixeonotus nicholi Knight, 1928 | Beaver povertyweed |
| Slaterocoris ambrosiae Knight, 1938 | |
| Slaterocoris apache Kelton, 1968 | Hairy forked nailwort |
| Slaterocoris croceipes Knight, 1970 | California amaranth |
| Slaterocoris rubrofemoratus Knight, 1968 | Mat amaranth |
| Slaterocoris sheridani Knight, 1968 | Mat amaranth |
| Spanagonicus albofasciatus Reuter, 1907 | Black fleahopper |
| Squamocoris arizonae Knight, 1968 | Mat amaranth |
| Squamocoris latisquamus Stonedahl & ..., 1986 | Creeper |
| Stenotus binotatus Fabricius, 1794 | Plant Bug |
| Stictopsallus aspersus Van Duzee, 1923 | |
| Stittocapsus franseriae Knight, 1942 | |
| Taedia albifacies Knight, 1930 | |
| Taedia fasciola Knight, 1930 | |
| Taedia maculosa Knight, 1930 | |
| Taedia marmorata Uhler, 1894 | |
| Taedia nicholi Knight, 1926 | |
| Taedia parenthesis Knight, 1930 | |
| Taedia virgulata Knight, 1930 | |
| Teleorhinus cyaneus Uhler, 1890 | |
| Ticua granulata Knight, 1930 | |
| Trigonotylus americanus Carvalho, 1957 | |
| Trigonotylus pulcher Reuter, 1876 | Bermuda-grass mirid |
| Trigonotylus saileri Carvalho, 1957 | |
| Tropidosteptes flaviceps Knight, 1929 | |
| Tropidosteptes quercicola Johnston, 1939 | |
| Tropidosteptes rufivenosus Knight, 1929 | |
| Tropidosteptes vittifrons Knight, 1929 | |
| Tuxedo elongatus Schuh, 2004 | |
| Tuxedo nicholi Knight, 1929 | |
| Tuxedo susansolomonae Schuh, 2004 | |
| Tytthus balli Knight, 1931 | |
| Tytthus insperatus Knight, 1925 | |
| Tytthus montanus Carvalho & S..., 1955 | |
| Tytthus pubescens Knight, 1931 | |
| Tytthus uniformis Henry, 2012 | |
| Usingerella simplex Reuter, 1909 | |
| Viscacoris phoradendronae Knight, 1929 | |
| Wetmorea notabilis McAtee & Mal..., 1924 | |
