Ephialtias undetermined

Miller, James S, 2009, Generic Revision Of The Dioptinae (Lepidoptera: Noctuoidea: Notodontidae) Part 2: Josiini, Bulletin of the American Museum of Natural History 2009 (321), pp. 675-1022 : 745

KEY TO EPHIALTIAS SPECIES GROUPS

1. Hind wing either completely blackish brown (pl. 28), or with an orange or white, central area of varying size (pl. 29); vesica wide, approximately equal to aedeagus in length (e.g., figs. 316B, 318C); female DB short and wide, membranous (e.g., figs. 316E, 318B); CB bearing a large, ring-shaped sclerite at base, its internal surface finely spinose (e.g., fig. 316E, 317E); CB with a distal bend; signum large, bird shaped............. Abrupta Group

– HW with a rosy red to orange-red central area (pl. 29); male vesica long and narrow, nearly three times as long as aedeagus (fig. 318H); DB long and narrow, membranous (fig. 318G); CB bearing a greatly elongate, bandlike sclerite running from DB to near distal margin of CB (fig. 318G), its lateral margins edged with long internal spines; CB without a distal bend; signum absent................. Bryce Group

1. ABRUPTA GROUP