Paranthrene rubomacula Kallies & Owada sp. nov.

(Figs 1, 2, 29)

Material examined. Holotype. ♂, Guangxi, Guilin, Maoershan, 500–1500 m, 6.–10.VIII.2007 (SCAU). Paratypes. 1♂, 1♀, same date as holotype (♂, Fig. 1, CAK, ♀, Fig. 2, NSMT); 4♂, 1♀, same locality, 730 m, 11.–15.VIII.2009 (NSMT, CAK, 1♂ Gen. Prep. AK654); 1 ♂, Prov. Guandong, Shaoguang, Nanling, 800 m, 10.VII.2010 (NSMT).

Description. Male (Fig. 1). Wingspan 33 mm; forewing length 15 mm; body length 21 mm. Head: labial palps white ventrally and baso-laterally; frons grey-black, white laterally; pericephalic scales white ventrally and laterally; patagia with few white scales laterally. Fore coxa with white lateral edge, mid femur with white border laterally; first tarsomer of hind leg with white spot distally. Forewing: with few white scales at the base; discal spot very wide, with a large red spot in its centre; ventrally similar but red mark more extensive. Hindwing: largely transparent, with broad outer margin and strong discal spot; opaque between veins Cu1 and Cu2. Abdomen: tergites black; sternites with white distal borders; valva with white scales; anal tuft black, long and slender. Female (Fig. 2). Almost identical to male. Antennae simple.

Genitalia. Male (Gen. prep. AK654, Fig. 29). Uncus (a) long and slender, with soft setae apically; gnathos (b) with simple ventral margin with two short and rounded projections; valva long, dorsal field of ventral surface (c) covered with soft, multi-tipped setae, each with ca 8 tips; ventral area of valva surface (d) with simple soft setae; basal patch (e) with strong pointed setae; phallus straight, shorter than valva, with a subapical plate with 4–5 small teeth (f).

Diagnosis. A very distinctive species; most body parts black with a bluish sheen, with a distinct red discal spot and a slender body. It is not similar to any known representatives of Paranthrene or related genera.