Herpystis densisetosa, Bai & Li, 2019

Bai, Xia & Li, Houhun, 2019, Taxonomic review of the genus Herpystis Meyrick, 1911 (Lepidoptera, Tortricidae) from China, with descriptions of four new species, Zootaxa 4590 (3), pp. 382-392 : 383-385

Herpystis densisetosa , sp. nov.

( Figs. 1 , 6 , 11 )

Type material. CHINA: Holotype ³, Tianchi (18.73°N, 108.87°E), Jianfengling , Hainan Province, 787 m, 16.VII.2015, leg. Qingyun Wang, Suran Li and Mengting Chen, slide No. BX 15561.

Paratypes (18³, 4♀). CHINA: Hainan Province: 8³ , 1♀, Duowenling , Lingao County, 207 m, 20.VIII.2017, leg. Xia Bai, Ping Liu and Shuai Yu, slide Nos. BX 15844³, BX15853³, BX15851 ♀; 1³, Baishiling, Qionghai , 58 m, 18. VI.2018, leg. Ping Liu, Xia Bai and Shuai Yu ; 1³, Bawangling , Changjiang County, 225 m, 14.VIII.2017, leg. Xia Bai, Ping Liu and Shuai Yu , slide No. BX15847; 1³, Datian, Dongfang , 122 m, 1.I.2018, leg. Mujie Qi and Shuai Yu, slide No. BX 16254 ; 1♀, Datian, Dongfang , 119 m, 2.I.2018, leg. Mujie Qi and Shuai Yu ; 3³, Lemei, Dongfang , 81 m, 3.I.2018, leg. Mujie Qi and Shuai Yu , slide Nos. BX16256, BX16259; 1³, Dali , Lingshui County, 229 m, 24.VIII.2017, leg. Xia Bai, Ping Liu and Shuai Yu , slide No. BX15846; 1³, Pailiao , Qixianling , Baoting County, 130 m, 24.IV.2013, leg. Yinghui Sun, Wei Guan and Tengteng Liu, slide No. BX 15567; 2³ , 2♀, Pailiao Road , Baoting County, 206 m, 25‒26.XII.2018, leg. Mujie Qi and Shuai Yu, slide Nos. BX 16255³, BX16257³, BX16485 ♀.

Diagnosis. This species is similar to H. assimulatana Kuznetzov, 1997 in the male genitalia by having a broadly expanded cucullus, but it can be distinguished by the sacculus obtusely angled ventroapically and the cucullus with a large ventroapical spine. In H. assimulatana , the sacculus is not angled and the cucullus lacks a ventroapical spine ( Kuznetzov 1997: 200, fig. 16).

Description. Adult ( Fig. 1 ). Vertex grayish white or creamy white, mixed with grayish brown, frons grayish white. Antenna with scape grayish white mixed with blackish brown, flagellum brown. Labial palpus with first and second segments grayish brown mixed with brown; second segment expanded distally; third segment grayish white, short and thin, slightly drooping. Patagium grayish white; thorax grayish white mixed with dark brown; tegula with basal half blackish brown, distal half gray, tipped with grayish white. Foreleg blackish brown, grayish white at middle and apex of tibia, as well as at apex of first and second tarsomeres; midleg blackish brown, grayish white at middle and apex of tibia, as well as at apex of first to third and fifth tarsomeres; hindleg grayish white, second to fifth tarsomeres brown except grayish white at apex.

Wingspan 7.5‒10.5 mm. Forewing ground color creamy white or grayish white, mixed with brown; costa dark brown, mixed with yellowish brown on distal 0.33, with nine pairs of strigulae: basal three pairs grayish brown, other pairs white, striae below distal three pairs leaden gray, obliquely outward and confluent to distal 0.25 of R 5; dark brown patch extending from basal 0.33 of dorsum outward to below upper margin of discal cell at middle, indicating edge of basal patch; median fascia short, extending to below distal 0.25 of upper margin of discal cell, forming a subrectangular blackish brown spot at middle of costa; dark brown dash near middle of M 2; tornal spot dark brown, triangular, extending along inner margin of ocellus to near apex of CuA 1; ocellus leaden gray, subovate, with a transverse dark brown mixed with yellowish brown stripe in middle; cilia creamy white mixed with blackish brown, subbasal line blackish brown. Hindwing and cilia grayish white.

Male genitalia ( Fig. 6 ): Tegumen rounded on posterior margin. Socius approximately 0.33 length of tegumen, with sparse short setae. Valva with basal half rectangular, with a large subrectangular basal excavation; sacculus narrow, obtusely angled ventroapically, with dense short setae on anterior 0.66 of outer margin; distal half hammer-like, obtusely rounded at apex; neck approximately 0.33 maximum width of cucullus, with sparse short setae; cucullus expanded, with dense long setae dorsoapically, ventral angle triangularly produced and with a large spine. Phallus approximately 0.66 length of valva, ventral surface with micro serrations on distal 0.33; cornuti with deciduous thick and long spines.

Female genitalia ( Fig. 11 ): Sternite VII with two symmetrical spinous triangular plates at middle from anterior margin, extending backward and surrounding ostium bursae; anterior margin densely spinous. Ostium bursae situated in middle of sternite VII. Antrum short, approximately 0.14 length of ductus bursae; colliculum from basal 0.3 to 0.7 times of ductus bursae; ductus bursae nearly equal length to corpus bursae. Corpus bursae ovate; two signa boat-shaped; appendix bursae reniform, nearly equal size to corpus bursae; ductus seminalis originating from juncture of ductus bursae and appendix bursae. Sternite VI with posterior margin medially sclerotized and slightly concave.

Distribution. China (Hainan).

Etymology. The specific epithet is derived from the Latin prefix dens- and the Latin setosus, referring to the sacculus with dense short setae on the outer margin in the male genitalia.

Figures

FIGURES 1‒5. Adults of Herpystis spp. 1, H. densisetosa, paratype, ³³;; 2, H. medispinata, holotype, ³³;; 3, H. arcisaccula, paratype, ³³;; 4, H. orthocera, paratype, ³³;; 5, H. micamica, ³³.. (Scale barsbars == 2.0 mm).

FIGURES 6‒10. Male genitalia of Herpystis spp. 6,, H. densisetosa, holotype, slide No. BX15561; 7, H. medispinata, holotype, slide No. BX16381; 8 8, H. arcisaccula, holotype, slide No. BX15845 (8a, VariationVariationVariation ofofof phallus phallus phallus,,,, paratype, slide No. BX15695); 9 9, H. orthocera, holotype,, slide No. BX15702; 10, H. micamica, slide No. BX15321. (Scale bars = 0.25 mm).

FIGURES 11‒14. Female genitalia of Herpystis spp. 11 11, H. densisetosa, paratype, slide No. BX15851 (11a, sternitesternite VI VI)) ;;; 12, H. arcisaccula, paratype, slide No. BX15696 (12a, sternitesternite VI VI)) ;;; 13 13, H. orthocera, paratype, slide No. BX15842 (13a, sternitesternite VI VI)) ;;; 14, H. micamica, slide No. BX15565 (14a, sternitesternite VI VI)) ... (Scale barsbarsbars === 0.25 mm).