Pangrapta hainanensis 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 : 395-398

Pangrapta hainanensis Hu & Wang , sp. n. ( Figs 21–25 )

Type material. Holotype: male, Jianfengling, Hainan Prov., 12.iv.2009, Min Wang. Ten paratypes: 1 female, Jianfengling, Hainan Prov., 14.ix.2003, Min Wang ; 1 male, Yinggeling , Hainan Prov., 11.v.2005, Min Wang ; 1 female, Jianfengling,

Hainan Prov. , 12.vii.2006, Min Wang; 1 male & 1 female, Jianfengling , Hainan Prov. , 12.iv.2009, Min Wang; 1 male, Jianfengling , Hainan Prov. , 30.xi.2011, Wentang Wang & Houshuai Wang; 1 male, Nanling , Guangdong Prov. , 7.vii.2007, Min Wang; 1 male, Maoershan , Guangxi Zhuang Autonomous Region , 3.viii.2005, Min Wang; 1 male & 1 female, Longsheng, 300 m , Guangxi Zhuang Autonomous Region , 21.viii.2012, Min Wang, Wentang Wang & Houshuai Wang .

Diagnosis. The new species has a considerably larger wingspan (33–35) than the species P. pannosoides ( Figs 26– 29 , illustration by Holloway, 2005; wingspan 15–19 mm). Although the two species have highly similar wing pattern, they can be distinguished from the antemedial and medial lines. In the new species, the antemedial line is a broken line, the medial line is closer to the postmedial line; in P. pannosoides the antemedial line is an arc-shaped line, the medial line is closer to the middle position between the antemedial and postmedial lines; on the hindwing, the medial line in the new species is closer to the postmedial line comparing with the medial line in P. pannosoides . In the male genitalia, the new species has a shorter uncus, a hornlike harpe and a fingerlike process from sacculus, while P. pannosoides has an elongate uncus, a tapered harpe and a triangular process from sacculus; in the female genitalia, the new species has the short ductus bursae with a broad sclerotization part, while P. pannosoides has the long ductus bursae with a narrow sclerotization part.

Description. Adult ( Figs 21 & 24 ). Wingspan 33–35mm. Head, thorax, abdomen and collar brown; antenna brown, filiform; labial palpus brown, stretched upward beyond the vertex. Forewing ground color brown; a triangular patch at costa margin between the medial and subterminal lines, greyish brown; basal line darker brown, just represented at anterior part; antemedial line darker brown, excurved to orbicular spot, then incurved and straight to inner margin; medial line darker brown, excurved to reniform spot, then incurved and straight to inner margin; postmedial line blackish brown, excurved to vein M 1, then incurved and straight to inner margin; subterminal line inconspicuous, darker brown and sinuate; terminal line pale blackish brown, wavy; cilia brown; subterminal area near the triangular patch and postmedial area below the triangular patch dark brown; orbicular spot darker brown circle; reniform spot darker brown, similarly oval-shaped. Hindwing ground color brown; medial line darker brown; postmedial line double, black, sinuate, incurved after cell, with the darker brown shadow inside; subterminal line double, zigzag, blackish brown inside and darker brown outside; terminal line pale blackish brown, wavy; cilia brown; discal spot inconspicuous.

Male genitalia. ( Figs 22 & 23 ). Uncus short, slender basally and widened apically, pointed at apex; tegumen relatively broad; valve short and tapering apically; harpe hornlike, robust and widened basally, sclerotized apically; sacculus narrow, process fingerlike; saccus funnel-shaped. Aedeagus medium long, with some spurs apically; vesica with a small cornutus basally, a big cornutus on one diverticulum and a group of short spines on the other one.

Female genitalia. ( Fig. 25 ). Papillae anales short and broad; apophysis posterioris thin and long; apophysis anterioris relatively short and broad, divided basally; ostium slightly sclerotized; ductus bursae short, the sclerotization extending into corpus bursae; corpus bursae oval-shaped, with a signum basally.

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

Distribution. China (Guangdong, Guangxi, Hainan).

Figures

FIGURES 21–31. Pangrapta spp., adult, male and female genitalia. 21–25. P. hainanensis sp. n. (21. male, holotype; 22 & 23. male genitalia, holotype; 24. female, paratype; 25. female genitalia, paratype). 26–29. P. pannosoides (illustration by Holloway, 2005, Borneo). (26. male; 27 & 28. male genitalia; 29. female genitalia). 30 & 31. P. shivula (China, Tibet) (30. male; 31. male genitalia).