Chrysopera combinans (Walker, 1858)

Chrysopera combinans (Walker, 1858) View in CoL

Achaea combinans Walker 1858 a: 1399. Type locality. Ceylon. View in CoL

Achaea quadrilunata Pagenstecher 1890: 109. Type locality. E. Java. View in CoL

Materials

Type status: Other material. Occurrence: recordedBy: YB. Cha et al.; individualCount: 1; sex: female; lifeStage: adult; preparations: photograph; genitalia (slide no. HH 0275 / Hee Han); occurrenceID: D37A1118-5631-56BA-8C22-C0BBD156FA4F; Taxon: kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Lepidoptera ; family: Erebidae ; genus: Chrysopera ; specificEpithet: combinans ; Location: country: South Korea; stateProvince: Jeollanam-do; locality: Wando-gun, Gunoe-myeon, Samdu-ri ; decimalLatitude: 34.345528; decimalLongitude: 126.675500; Event: eventDate: 10 VII 2023

Description

Adult (Fig. 1 View Figure 1 ). Wing-span 39 mm. Antenna ciliated, reddish-brown. Head brown; frons yellowish-brown; labial palpus yellowish-brown; second segment dilatate, thick; third segment elongated. Thorax dark brown. Patagium and tegula dark brown. Femur of forelegs dark brown; tibia yellowish-brown; tarsus brown with bright scales on each segment. Femur of mid-legs brown; tibia furry, yellowish-brown, with a pair of spurs in the lower part; tarsus brown with bright scales on each segment, with spines. Hind-legs with femur yellowish-brown; tibia yellowish-brown, with two pairs of spurs in the middle part and lower part; tarsus yellowish-brown with bright scales on each segment, with spines. Ground colour of forewing brown; antemedial line indistinct, dark brown, arcuated; reniform blackish, bent; subapical spot light brown, distinct, semicircle, concave distally. Ground colour of hind-wing brown; apical area yellowish. Abdomen greyish-brown.

Male genitalia. Uncus slender, long, with pointed apex, deflexed; tegumen long, elongated, 1.5 times longer than uncus; valva broad, obovate; costa sclerotised, fused to valva; vinculum short, slightly broad, with round apex; aedeagus not shown ( Holloway 2005).

Female genitalia (Fig. 2 View Figure 2 ). Papillae anales short, wide; apophyses posteriors 1.5 times longer than apophyses anteriores, both apophyses slender; ostium linear, slightly sclerotised; ductus bursae elongated with two sclerites near ostium; ductus seminalis short, elongated; corpus bursae elongated, with one small circular signum.

Diagnosis

This species is similar to Avitta bracteola Holloway and A. ochromarginata Pagenstecher in having the following characters: brown forewing and dark brown hind-wing, with yellowish terminal part; dark brown abdomen ( Holloway 2005). However, this species can be distinguished from Avitta species by the following characters: subapical spot light brown, distinct, semicircle, bent S-shape distally; apex of hind-wing yellowish.

Distribution

Palaearctic: Korea (new record); Oriental: India to Southeast Asia; Australasian: New Guinea, Queensland, the Solomons and Fiji ( Holloway 2005).

Ecology

Hostplant: unknown.

Notes

Male genitalia description is based on fig. no. 330 of Holloway (2005). The report from Korea marks the highest latitude at which the species has ever been found. The specimen used in the present study has a 39 mm wing-span. However, earlier, Hampson (1894) measured 44 mm wing-span in this species.