Udana smaragdina Walker, 1868 – basionym of Dalpada smaragdina (Walker, 1868)
Udonga spinidens Distant, 1921
Ugloderes uvarovi (Štys, 1970)
Uhleriella Matsumura, 1913, Subgenus (Homoeocerus) – synonym of Anacanthocoris Uhler, 1861, Subgenus (Homoeocerus)
Uhlerites debilis (Uhler, 1896)
Uhlerites gracilis Josifov, 1982 – synonym of Uhlerites debilis (Uhler, 1896)
Uhlerites latiorus Takeya, 1931
Uhlerites latius Drake, 1948 – misspelled name of Uhlerites latiorus Takeya, 1931
Ulmica baicalica (Kulik, 1965)
Ulmicola spinipes (Fallén, 1807)
Ulmicola spinipes f. unicolor Stichel, 1960 – synonym of Ulmicola spinipes (Fallén, 1807)
Ulmocyllus virens Seidenstücker, 1964
Ulonemia assamensis (Distant, 1903)
Ulumiris olympicus Seidenstücker, 1965
Unguinecta Nieser, P.P. Chen & C.M. Yang, 2005, Subgenus (Micronecta)
Urartucoris ermolenkoi P.V. Putshkov, 1979
Urentius abutilinus Priesner & Alfieri, 1953 – synonym of Urentius euonymus Distant, 1909
Urentius aegyptiacus Bergevin, 1930 – synonym of Urentius hystricellus (Richter, 1870)
Urentius aegyptius Priesner & Alfieri, 1953 – misspelled name of Urentius hystricellus (Richter, 1870)
Urentius chobauti Horváth, 1907
Urentius echinus Distant, 1903 – synonym of Urentius hystricellus (Richter, 1870)
Urentius euonymus Distant, 1909
Urentius hoggari Bergevin, 1928 – synonym of Urentius nanus (Schumacher, 1913)
Urentius hystricellus (Richter, 1870)
Urentius maculatus Drake, 1933 – synonym of Urentius euonymus Distant, 1909
Urentius nanus (Schumacher, 1913)
Urentius olivaceus Distant, 1909 – synonym of Urentius hystricellus (Richter, 1870)
Urentius sentis Distant, 1909 – synonym of Urentius hystricellus (Richter, 1870)
Urochela (Chlorochela) caudata (Yang, 1939)
Urochela (Chlorochela) flavoannulata (Stål, 1854)
Urochela (Chlorochela) licenti (Yang, 1939)
Urochela (Chlorochela) lijiangensis Ren, 1997
Urochela (Chlorochela) pallescens (Jakovlev, 1890)
Urochela (Chlorochela) stigmatella (Yang, 1939)
Urochela (Urochela) albosignata Ren & Bu, 2003
Urochela (Urochela) distincta Distant, 1900
Urochela (Urochela) elongata Blöte, 1945
Urochela (Urochela) emeia Yang, 1980
Urochela (Urochela) falloui Reuter, 1888
Urochela (Urochela) gansuensis Ren, 1997
Urochela (Urochela) guttulata Stål, 1876
Urochela (Urochela) hamata Ren, 1986
Urochela (Urochela) himalayaensis Yang, 1938
Urochela (Urochela) intermedia Yang, 1980
Urochela (Urochela) jingdongana Ren, 2000
Urochela (Urochela) lobata Ren, 1986
Urochela (Urochela) luteovaria Distant, 1881
Urochela (Urochela) medogensis Ren, 1988
Urochela (Urochela) montana Ren, 1984
Urochela (Urochela) musivus (Jakovlev, 1890)
Urochela (Urochela) notata Ren, 1986
Urochela (Urochela) nubila Ren, 1985
Urochela (Urochela) paraobscura Zhang & Xue, 1993
Urochela (Urochela) parvinotata Yang, 1980
Urochela (Urochela) picta Ren, 1985
Urochela (Urochela) punctata Hsiao & Ching, 1977
Urochela (Urochela) quadrinotata (Reuter, 1881)
Urochela (Urochela) rubra Yang, 1938
Urochela (Urochela) rufiventris Hsiao & Ching, 1977
Urochela (Urochela) sichuanensis Yang, 1980
Urochela (Urochela) sordida J.J. Li, 1981
Urochela (Urochela) strandi Esaki, 1936
Urochela (Urochela) tunglingensis Yang, 1939
Urochela (Urochela) verrucosa Ren, 1997
Urochela (Urochela) yunnanana Ren, 1984
Urochela Dallas, 1850, Subgenus (Urochela)
Urochela elongata Blöte, 1845 – basionym of Urochela (Urochela) elongata Blöte, 1945
Urochela emeia Yang, 1980 – basionym of Urochela (Urochela) emeia Yang, 1980
Urochela falloui Reuter, 1888 – basionym of Urochela (Urochela) falloui Reuter, 1888
Urochela furca Lin, 1993 – basionym of Urostylis furca (Lin, 1993)
Urochela gansuensis Ren, 1997 – basionym of Urochela (Urochela) gansuensis Ren, 1997
Urochela guttulata Stål, 1876 – basionym of Urochela (Urochela) guttulata Stål, 1876
Urochela hamata Ren, 1986 – basionym of Urochela (Urochela) hamata Ren, 1986
Urochela himalayaensis Yang, 1938 – basionym of Urochela (Urochela) himalayaensis Yang, 1938
Urochela intermedia Yang, 1980 – basionym of Urochela (Urochela) intermedia Yang, 1980
Urochela jingdongana Ren, 2000 – basionym of Urochela (Urochela) jingdongana Ren, 2000
Urochela jozankeana Matsumura, 1913 – synonym of Urochela (Urochela) quadrinotata (Reuter, 1881)
Urochela lijiangensis Ren, 1997 – basionym of Urochela (Chlorochela) lijiangensis Ren, 1997
Urochela lobata Ren, 1986 – basionym of Urochela (Urochela) lobata Ren, 1986
Urochela luteovaria Distant, 1881 – basionym of Urochela (Urochela) luteovaria Distant, 1881
Urochela luteovaria: Ho, 1933 – misidentification of Urochela (Urochela) falloui Reuter, 1888
Urochela medogensis Ren, 1988 – basionym of Urochela (Urochela) medogensis Ren, 1988
Urochela montana Ren, 1984 – basionym of Urochela (Urochela) montana Ren, 1984
Urochela neoluteovaria Yang, 1938 – synonym of Urochela (Urochela) luteovaria Distant, 1881
Urochela notata Ren, 1986 – basionym of Urochela (Urochela) notata Ren, 1986
Urochela nubila Ren, 1985 – basionym of Urochela (Urochela) nubila Ren, 1985
Urochela obscura Zhang & Xue, 1988 – homonym of Urochela (Urochela) paraobscura Zhang & Xue, 1993
Urochela paraobscura Zhang & Xue, 1993 – basionym of Urochela (Urochela) paraobscura Zhang & Xue, 1993
Urochela parvinotata Yang, 1980 – basionym of Urochela (Urochela) parvinotata Yang, 1980
Urochela picta Ren, 1985 – basionym of Urochela (Urochela) picta Ren, 1985
Urochela punctata Hsiao & Ching, 1977 – basionym of Urochela (Urochela) punctata Hsiao & Ching, 1977
Urochela rubra Yang, 1938 – basionym of Urochela (Urochela) rubra Yang, 1938
Urochela rufiventris Hsiao & Ching, 1977 – basionym of Urochela (Urochela) rufiventris Hsiao & Ching, 1977
Urochela scutellata Yang, 1938 – synonym of Urochela (Urochela) quadrinotata (Reuter, 1881)
Urochela siamensis Yang, 1938 – basionym of Chelurotropella siamensis (Yang, 1938)
Urochela sichuanensis Yang, 1980 – basionym of Urochela (Urochela) sichuanensis Yang, 1980
Urochela sordida J.J. Li, 1981 – basionym of Urochela (Urochela) sordida J.J. Li, 1981
Urochela strandi Esaki, 1936 – basionym of Urochela (Urochela) strandi Esaki, 1936
Urochela tunglingensis Yang, 1939 – basionym of Urochela (Urochela) tunglingensis Yang, 1939
Urochela verrucosa Ren, 1997 – basionym of Urochela (Urochela) verrucosa Ren, 1997
Urochela wui Yang, 1939 – synonym of Urochela (Urochela) luteovaria Distant, 1881
Urochela yunnanana Ren, 1984 – basionym of Urochela (Urochela) yunnanana Ren, 1984
Urochelellus acutihumeralis Yang, 1937
Urolabida baoshanana Ren, 1997
Urolabida bimaculata Ren, 1986
Urolabida binotata Walker, 1867 – synonym of Urolabida histrionica (Westwood, 1837)
Urolabida callosa Hsiao & Ching, 1977
Urolabida concolor Hsiao & Ching, 1977
Urolabida diaoluoensis Ren, 1986
Urolabida emarginata Maa, 1947 – synonym of Urolabida spathulifera Blöte, 1945
Urolabida grayii (A. White, 1839)
Urolabida guangxiensis Ren, 1986
Urolabida histrionica (Westwood, 1837)
Urolabida khasiana Distant, 1887
Urolabida lineata Hsiao & Ching, 1977
Urolabida lobopleuralis (Maa, 1947)
Urolabida maculata Zhang & Xue, 1995
Urolabida marginata Hsiao & Ching, 1977
Urolabida menghaiensis Ren, 2001
Urolabida menglongana Ren, 2000
Urolabida nigra Zhang & Xue, 1992
Urolabida nigromarginalis (Reuter, 1881)
Urolabida pseudaipysa Lin, 1993 – synonym of Urolabida aipysa Ren, 1985
Urolabida recurvata (Maa, 1947)
Urolabida scutellata Ren, 1986
Urolabida scutellata Zhang & Xue, 1988 – homonym of Urolabida maculata Zhang & Xue, 1995
Urolabida septemdentata Maa, 1947
Urolabida sinensis (Walker, 1867)
Urolabida sinica Ren & Liu, 1997
Urolabida spathulata Ren, 1984
Urolabida spathulifera Blöte, 1945
Urolabida subspatulata Lin & Zhang, 1993
Urolabida subtruncata Maa, 1947
Urolabida suppressa (Maa, 1947)
Urolabida taiwanensis Ren & C.S. Lin, 2003
Urolabida tenera Westwood, 1837
Urolabida triramalis Ren & C.S. Lin, 2008
Urolabida wufengana Ren & Bu, 2003
Urolabidina sinensis Reuter, 1888 – synonym of Urochela (Chlorochela) flavoannulata (Stål, 1854)
Urostylis adiai Nonnaizab, 1984 – synonym of Urostylis annulicornis Scott, 1874
Urostylis agna China, 1925 – synonym of Urochela (Chlorochela) pallescens (Jakovlev, 1890)
Urostylis agna var. caudatus Yang, 1939 – basionym of Urochela (Chlorochela) caudata (Yang, 1939)
Urostylis annulicornis Scott, 1874
Urostylis atrostigma Maa, 1947 – synonym of Urostylis westwoodii Scott, 1874
Urostylis blattiformis Bergroth, 1916
Urostylis cletoformis Ren, 1985
Urostylis connectens Hsiao & Ching, 1977
Urostylis denticollis Ren, 1986
Urostylis flavoannulata Stål, 1854 – basionym of Urochela (Chlorochela) flavoannulata (Stål, 1854)
Urostylis forcipatis Ren, 1984
Urostylis furcifer Blöte, 1945
Urostylis geniculatus Jakovlev, 1889 – synonym of Urostylis annulicornis Scott, 1874
Urostylis guangdongensis Z.Y. Chen, 1994 – synonym of Urolabida nigromarginalis (Reuter, 1881)
Urostylis histrionica Westwood, 1837 – basionym of Urolabida histrionica (Westwood, 1837)
Urostylis hubeiensis Ren, 1997
Urostylis hummeli Lindberg, 1934 – synonym of Urochela (Chlorochela) pallescens (Jakovlev, 1890)
Urostylis immaculata Yang, 1938
Urostylis insignis Hsiao & Ching, 1977
Urostylis jinxiuensis Ren, 2004
Urostylis koreana Kim & Jung, 2018 – synonym of Urostylis hubeiensis Ren, 1997
Urostylis lateralis Walker, 1867
Urostylis limbata Hsiao & Ching, 1977
Urostylis linguiformis Ren, 1984
Urostylis lobopleuralis Maa, 1947 – basionym of Urolabida lobopleuralis (Maa, 1947)
Urostylis longmenensis Z.Y. Chen, 1994 – synonym of Chelurotropella siamensis (Yang, 1938)
Urostylis maoershanensis Ren, 1997
Urostylis nigromarginalis Reuter, 1881 – basionym of Urolabida nigromarginalis (Reuter, 1881)
Urostylis ningdeensis Y.J. Lin & S.M. Zhang, 1999
Urostylis obscura Xue & Zhang, 1992
Urostylis paratrifida Ren & C.S. Lin, 2008
Urostylis paratrifidus paratrifidus Ren & C.S. Lin, 2003 – invalid name of Urostylis paratrifida Ren & C.S. Lin, 2008
Urostylis paratrifidus Ren & C.S. Lin in C.S. Lin & Chan, 2008 – basionym of Urostylis paratrifida Ren & C.S. Lin, 2008
Urostylis qinlingensis Z.M. Zheng, 1982
Urostylis recurvata Maa, 1947 – basionym of Urolabida recurvata (Maa, 1947)
Urostylis ruficornis Ren, 1984
Urostylis similinsignis Ren, 2000
Urostylis sinensis Walker, 1867 – basionym of Urolabida sinensis (Walker, 1867)
Urostylis smaragdina Ren, 1985
Urostylis spectabilis Distant, 1902
Urostylis striicornis Scott, 1874
Urostylis suppressa Maa, 1947 – basionym of Urolabida suppressa (Maa, 1947)
Urostylis tricarinata Maa, 1947
Urostylis trullata Kerzhner, 1966
Urostylis venulosa Hsiao & Ching, 1977
Urostylis verticalis Maa, 1947
Urostylis virescens Reuter, 1888 – synonym of Urostylis annulicornis Scott, 1874
Urostylis westwoodii Scott, 1874
Urostylis xingshanensis Ren, 1997
Urostylis xizangensis Zhang & Xue, 1988
Urostylus musivus Jakovlev, 1890 – basionym of Urochela (Urochela) musivus (Jakovlev, 1890)
Urostylus pallescens Jakovlev, 1890 – basionym of Urochela (Chlorochela) pallescens (Jakovlev, 1890)
Ursocoris dorsalis: Hahn, 1834 – misidentification of Odontoscelis (Odontoscelis) hispanica Göllner-Scheiding, 1987
Usilanus burmanicus Distant, 1909
Usilanus denotatus Distant, 1909h – synonym of Usilanus burmanicus Distant, 1909
Usilanus pictus (Distant, 1918)
Usingerida carinata Hsiao, 1964
Usingerida hubeiensis S.L. Liu, 1980
Usingerida pingbiena Hsiao, 1964
Usingerida tuberosa Hsiao, 1964
Usingerida verrucigera (Bergroth, 1892)
Utopnia echinopis Lindberg, 1948b – synonym of Macrotylus (Macrotylus) perdictus Kiritshenko, 1938
Utopnia torquata (Puton, 1881)
Utopnia torquata f. denigrata Stichel, 1956 – synonym of Utopnia torquata (Puton, 1881)