Hetaerius gratus Lewis, 1884
Hetaerius gratus Lewis, 1884: 137 [midway between Shimonosuwa and Wada-toge]; Hasegawa and Kubota, 1944: 84 [Yokahama]; Tanoguchi and Koshio, 1979: 8; Kurosawa, 1976: 11; Hisamatsu, 1985: 230.
Japanese name: Aka-arizuka-emma-mushi.
Original description. "Subquadratus, rufo-brunneus, fulvo-hispidus; frontelateribus striatis; pronoto utrinque bisulcato; elytris striis 3 distinctis, 3 brevi; pygidio parce punctato, tenuissime impresso. L. 1. 1/2 mill."