Barsine jingkuni, Huang & Volynkin & Fan & Wang, 2022

Huang, Si-Yao, Volynkin, Anton V., Fan, Xiao-Ling & Wang, Min, 2022, Two remarkable new species of the genus Barsine Walker, 1854 from China (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Zootaxa 5162 (1), pp. 78-86 : 80-81

Barsine jingkuni S.-Y. Huang & Volynkin, sp. n.

( Figs 3–6 , 21, 22 )

Type material. Holotype ( Figs 3 , 21 ): female, 6.VII.2016, Homestay Yuanfangdejia , Longcanggou, Yingjing County, Sichuan Province, China, gen. prep. No.: LHSY018 (Coll. SCAU) . Paratypes: 3 females, 12.VII.2021, Dayuxi , Baoxing County, Ya’an City, Sichuan Province, China, Jing-kun Zhang leg., gen. prep. No.: BXBar1 (Coll. CHSY) .

Diagnosis. Barsine jingkuni sp. n. is externally similar to B. pardalis ( Figs 9, 10 , 19 , 23, 24 ), B. hoenei ( Figs 7, 8 , 25, 26 ) and B. roseata ( Figs 11–16 , 20 , 27 ) but is distinguished by the combination of the following characters. (1) The dorsal side of the abdomen is thoroughly reddish, similar to B. pardalis and B. roseata , while it is bearing a blackish band in B. hoenei . (2) The forewing is less elongate and slightly broader than in B. hoenei and B. pardalis , similar to that of B. roseata . (3) The postmedial band of the forewing is interrupted into two spots at the costa and dorsum (similar to B. hoenei ), while it is interrupted into three spots in B. pardalis and continuous in B. roseata . (4) The interior margin of the dull yellowish terminal band of the forewing forms a large, trapezoid protrusion at the middle point of termen, similar to that in B. hoenei , while the interior margin of the marginal band in B. pardalis and B. roseata is smooth. (5) The marginal band of the hindwing is broad and well-developed, similar to B. roseata and B. pardalis , while the hindwing of B. hoenei is almost totally pinkish with black diffusion present only at the veins around the apex. (6) In the female genitalia, the ductus bursae is significantly longer than in B. roseata , slightly longer than in B. pardalis and nearly equal in length to that of B. hoenei . The corpus bursae of the new species is nearly equal in size to that of B. hoenei , slightly smaller than in B. pardalis and significantly smaller than in B. roseata . The signum bursae of B. jingkuni sp. n. is absent as in B. pardalis and B. hoenei , while it is present in B. roseata . The appendix bursae of the new species is smaller and shorter than in the similar congeners.

Description. Female ( Figs 3–6 ). Forewing length 22–25 mm (n= 4, 25 mm in holotype). Antenna weakly ciliate. Head and patagia covered with reddish hair-like scales. Thorax brownish dorsally, tegulum brownish, surrounded by reddish hair-like scales. Abdomen covered with reddish hair-like scales thoroughly. Forewing ground color brownish-grey, pattern dull yellow. Basal band interrupted into two spots positioned at costa and dorsum. Antemedial band interrupted into two spots positioned at costa and below cell. Medial band interrupted into three spots positioned at costa, at lower angle of cell, and above dorsum. Postmedial band interrupted into narrow spot at dorsum and larger spot at costa fused with marginal band. Marginal band interrupted into triangular spot at distal end of cell Cu 1 and large fore spot extending from apex to middle of termen and forming large, trapezoid protrusion posteriorly. Forewing cilia brownish. Hindwing crimson with broad brownish-grey marginal band gradually tapering from apex to anal angle, and crimson suffusion in subapical area. Hindwing cilia brownish.

Genitalia. Female ( Figs 21, 22 ). Papilla analis rectangular with rounded corners. Apophyses moderately long and slender, apophysis posterioris longer than apophysis anterioris. Ductus bursae sclerotized, long and broad, dorso-ventrally flattened, with somewhat dilated posterior half bearing several lengthwise folds, and membranous anterior end. Corpus bursae moderately large, globular with sclerotized posterior section scattered with small cluster of spinulose scobination. Basal section of appendix bursae sclerotized. Appendix bursae short with broad, heavily sclerotized and granulose basal section and narrow conical membranous distal section.

Male unknown.

Distribution. Currently only known from Sichuan Province in Western China.

Etymology. The new species is dedicated to Mr. Jing-kun Zhang, a friend of the first author and collector of the paratypes.

Remarks. (1) The wing pattern of B. jingkuni sp. n. displays a mixture of characters from both B. hoenei and B. pardalis , namely a hoenei -like forewing and a pardalis -like hindwing. However, since neither B. hoenei nor B. pardalis were found in Sichuan Province, B. jingkuni sp. n. is considered here as a distinct species and not the result of hybridization between them. (2) In the female genitalia of B. jingkuni sp. n., B. pardalis and B. hoenei , the size of the appendix bursae is somewhat variable ( Figs 23 –28), however since the characters found in this structure of each species do not overlap with those in the similar congeners, we consider the morphology of the appendix bursae to be diagnostic. The characters found in appendix bursae of each species are summarized as follows. In B. jingkuni sp. n., it is the narrowest and shortest among these species. The appendix bursae of B. hoenei is somewhat intermediate between B. jingkuni sp. n. and B. pardalis , being moderately broad and the longest in the species-complex. In B. pardalis , the appendix bursae is the broadest in the species-complex and shorter than in B. hoenei .

Figures

FIGURES 1–8. Adults of Barsine spp. Depositories of the specimens: 1, 3 in SCAU; 2, 4–6 in CHSY; 7 in ZFMK; 8 in MWM/ ZSM.

FIGURES 21–27. Female genitalia of Barsine spp. Depositories of the slides: 21 in SCAU; 22 in CHSY; 23 in MfN; 24 in the private collection of Yasunori Kishida; 25 in ZFMK; 26, 27 in MWM/ZSM.

FIGURES 9–16. Adults of Barsine spp. Depositories of the specimens: 9, 10 in MfN; 11 in SCAU; 12–16 in MWM/ZSM.

FIGURES 17–20. Male genitalia of Barsine spp. Depositories of the slides: 17 in SCAU; 18 in CHSY; 19 in MfN; 20 in MWM/ ZSM.