The identities of two East and Southeast Asian species of the plant bug genus Fingulus Distant, 1904 (Hemiptera: Heteroptera: Miridae: Deraeocorinae: Deraeocorini) are clarified based on their type specimens. The following new subjective synonymies are proposed: F. longicornis Miyamoto, 1965 = F. brevirostris Ren, 1983, syn. nov.; and F. ruficeps Hsiao Ren, 1983 = F. henrytomi Nakatani Yasunaga, 2018, syn. nov. Previous records of F. umbonatus Stonedahl Cassis, 1991 from Hainan, China, and F. collaris Miyamoto, 1965 from Zhejiang and Yunnan, China, are regarded as misidentifications of F. ruficeps and F. inflatus Stonedahl Cassis, 1991, respectively.
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