We recognized Linnaemya microchaetopsis Shima, L. picta (Meigen) and L. zachvatkini Zimin in Korean Linnaemya subgenus Ophina Robineau-Desvoidy and the latter two are reported for the first time in Korea. The subgenus Ophina shares the following morphological characteristics (sensu Shima): 1) the male tergite 6 is fused mid-dorsally with sternite 7+8; 2) the female tergite 6 and tergite 7 are almost always divided longitudinally into two hemitergites; 3) the female tergite 6 is always longer than the tergite 7; 4) circus parallel-sided in caudal view; 5) epiphallus present; and 6) pteropleural seta long, reaching posterior margin of lower calypter. We provide a key to the included Korean species, as well as descriptions and illustrations with their diagnostic characters indicated.