Pangrapta nanlingensis Hu & Wang, 2019

Hu, Yan-Qing & Wang, Min, 2019, Three new species and a new record of the genus Pangrapta Hübner, 1818 (Lepidoptera, Erebidae, Pangraptinae) from China, Zootaxa 4590 (3), pp. 393-399 : 393-395

Pangrapta nanlingensis Hu & Wang , sp. n. ( Figs 1–5 )

Type material. Holotype: male, Nanling, Guangdong Prov., 18.vi.2006, Min Wang. Fifteen paratypes: 2 males & 1 female, Tongrencun, Guangxi Zhuang Autonomous Region, 2.v.2004, Min Wang; 2 males & 2 females, Maoershan, Guangxi Zhuang Autonomous Region , 16.v.2004, Min Wang; 1 male, Maoershan, Guangxi Zhuang Autonomous Region , 3.viii.2005, Min Wang; 1 male, Nanling, Guangdong Prov., 18.v.2004, Min Wang; 1 female, Nanling, Guangdong Prov., 11.v.2005, Min Wang; 1 male, Nanling, Guangdong Prov., 17.ix.2006, Min Wang; 1 male & 1 female, Nanling, Guangdong Prov., 17.v.2009, Min Wang; 1 male, Nanling, Guangdong Prov., 24.vi.2009, Min Wang; 1 male, Nanling, Guangdong Prov., 5.vi.2011, Min Wang, Houshuai Wang & Haiming Xu.

Diagnosis. Externally, the new species has a larger wingspan (38–40 mm) than the species P. neorecusata ( Figs 6–10 ; wingspan 33–36 mm). The two species have highly uniform wing pattern, but wing color is different: in the new species, forewing ground color is brown except that the terminal and subterminal areas are black, hindwing ground color is blackish brown except that the apical angle area is brown; in P. neorecusata , forewing and hindwing ground colors are blackish brown. In the male genitalia, the new species has a relatively short uncus, a distally tapering valva, a banded and slightly sclerotized harpe and a long vesica with two cornuti at respective diverticulum, while P. neorecusata has an elongate uncus, a distally widened valva, a spine-shaped and strongly sclerotized harpe and a short vesica with two cornuti at one diverticulum. In the female genitalia, the new species has a basally sclerotized ductus bursae and a similarly heart-shaped corpus bursae, while P. neorecusata has a membranous ductus bursae and an oval-shaped corpus bursae.

Description. Adult ( Figs 1 & 4 ). Wingspan 38–40 mm. Head and collar black; thorax brown with black; abdomen blackish brown; antenna brown, filiform; labial palpus white with black, stretched upward beyond the vertex. Forewing ground color brown with the terminal and subterminal areas black; a triangular and greyish white patch between the postmedial and subterminal lines, with three black and short lines at costa margin; a greyish black patch at apical angle; basal line black, arc-shaped; antemedial line arc-shaped, brown above cell, black at posterior part; medial line wavy, widened and brown above cell, thin and black at posterior part; postmedial line sinuate, widened and brown above cell, thin and black at posterior part; subterminal line black with white inside, zigzag; terminal line black, wavy; cilia brown with black after Vein M 2; orbicular spot black circle; reniform spot black and oval-shaped. Hindwing ground color blackish brown with brown at apical angle area; medial line black, arc-shaped; postmedial line black, sinuate, with two black and wavy shadows outside; subterminal line black, sinuate; cilia brown with black after Vein M 2; discal spot black, wedge-shaped, encircled with white.

Male genitalia. ( Figs 2 & 3 ). Uncus slender, broad basally, pointed spine at apex; tegumen broad; valve thin and long, with parallel margins, tapering apically; harpe like a band-shaped process, slightly sclerotized, shorter than uncus; sacculus broad, almost 2/5 time as long as valva; saccus V-shaped. Aedeagus straight, medium long; vesica with a small cornutus on medial diverticulum and a long cornutus on apical diverticulum.

Female genitalia. ( Fig. 5 ). Papillae anales short and broad; apophysis posterioris thin and long; apophysis anterioris long and relatively broad, divided basally; ostium sclerotized at both side; ductus bursae short, with a sclerotization extending into corpus bursae; corpus bursae similarly heart-shaped, with a flake of sclerotization apically.

Etymology. The specific name is derived from the type-locality.

Distribution. China (Guangdong, Guangxi).

Figures

FIGURES 1–10. Pangrapta spp., adult, male and female genitalia. 1–5. P. nanlingensis sp. n. (1. male, holotype; 2 & 3. male genitalia, holotype; 4. female, paratype; 5. female genitalia, paratype). 6–10. P. neorecusata (China, Guangdong, Nanling). (6. male; 7 & 8. male genitalia; 9. female; 10. female genitalia).