Tetrichina trihamulata Chang & Chen, sp. nov. 28 adult, dorsal view 29 same, lateral view 30 head and thorax, dorsal view 31 same, lateral view 32 head, ventral view 33 forewing 34 hindwing 35 male genitalia, lateral view 36 male anal segment, dorsal view 37 capitulum of genital styles, posterior view 38 aedeagus and phallobase, lateral view 39 same, ventral view. Scale bars: 0.5 mm. Abbreviations: a–obvious triangular prominence, b–unobvious triangular prominence, c–lobed process, d–bidirectional hooked process, e–irregularly quadrangular prominence, f–lobe-like process, g–long hooked process.