Species name Diomea discisigna Sugi, 1963 ヨツモンムラサキアツバ,Cat.4374
Taxonomy  Diomea discisigna Sugi, 1963, Tinea 6: 25, 28, figs. 5, 8 (TL: Japan, Shizuoka Pref. , Izu Peninsula, Odaru [coll. S. Sugi, Tokyo])
Geographical
Range
Endemic to Japan (Honshu, Shikoku, Kyushu, Shikoku, Tsushima, Yakushima, Amamioshima, Tokunoshima, Okinawa, Ishigaki, Iriomote)
日本(本州、九州、四国、対馬、屋久島、奄美大島、徳之島、沖縄島、石垣島、西表島)
Distribution map
Biology 幼生期は未知.
Flying season 5-8月に出現.
Remark

♂の触角は微毛状. 次種と異なり各節1対の微刺毛を生じない. 前翅はかなり強く紫黒色を呈し, 後翅はやや赤味を帯びる. 外横線の起点には顕著な白色斑を表し, 前翅の腎状紋および後翅の横脈紋は黒色ともに次種よりもよく発達している.

Japan
Japan
 Japan
Japan
Japan
Japan
Male genitalia 
Male genitalia 
 Female genitalia 
References   Kishida Y (E.d.), 2011, The Standard of Mothss in Japan 2: 192 Gakken Education Publishing , Tokyo
VS Kononenko, S.B. Alm, L. Ronkay, 1998, Illustrated Catalogue of Noctuidae in Korea: 107