Xyrosaris insularis Ponomarenko & Beljaev, 2023

Na, Sol-Moon & Bae, Yang-Seop, 2024, Review of the genus Xyrosaris Meyrick (Lepidoptera, Yponomeutidae, Yponomeutinae) from Korea, with two new species, Zootaxa 5397 (3), pp. 418-426 : 421-422

Xyrosaris insularis Ponomarenko & Beljaev, 2023

( Figs 2D, 2E , 3B, 3F , 4B , 5B )

Xyrosaris sp. 2 : Oku, 2003: 26; Komatsu, 2020: 64; Yagi, 2022: 47.

Xyrosaris insularis Ponomarenko & Beljaev, 2023: 137 . TL: Russia (Primorskii Krai).

Diagnosis. This species is similar to X. triacantha Na & Bae sp. n. superficially. But it can be distinguished by the following genital characters: the valval harpe is dramatically curved near apex, with seven large thorns in the male genitalia; the ductus bursae is less than 2.5 times as long as corpus bursae in the female genitalia.

Distribution. Korea, Japan (Hokkaido, Honshu, Kyushu), Russia (Southern of the Far East).

Host plant. Celastraceae — Euonymus alatus f. ciliatodentatus Hiyama (Present study); E. orbiculatus Thunb. ( Ponomarenko & Beljaev 2023).

Material examined. [ INUB] ♀, Gyeonggido Province , Yangpyeong-gun, Yangseo-myeon, 7. V. 1998 (Y.S. Bae), genitalia slide no. QNA-06 . ♂, 4♀, Gyeongsangsando Province , Changnyeong-gun , Hwawangsan Mountain , 29.VII.1998 (DS Gu) [in Korean], genitalia slide no. QNA-07, -08, -09 (2♀ abdomen lost). ♂, Gyeonggido Province , Inchon-shi, Jangsu-dong, 6.X.1999 (Lee & Lee), genitalia slide no. QNA-10 . 2♀, Gyeonggido Province , Ansan-si , Is. Daebu , Mt. Hwanggeum, 31.VIII.2004 (Oh, Kim, Song & Nha), genitalia slide no. INU-4736 , -4737 .

Remarks. Prior to Ponomarenko and Beljaev (2023), this species was reported as Xyrosaris sp. 2 by Oku (2003) from Japan. Subsequently some Japanese authors referred to it. In the present paper, this species is reported from Korea for the first time. However, the mtCOI information was already uploaded at the GenBank (KF523851.1) as X. lichneuta Meyrick. Ponomarenko and Beljaev (2023) predicted distribution in Korea by comparing their own mtCOI data with Genbank and BOLD. Therefore, this species is validated in the Korean fauna.

Figures

FIGURE 2. Adults of Xyrosaris spp.: A. X. lichneuta Meyrick, female, Gyeonggido Province, Korea; B. ditto, female, Gangwondo Province, Korea; C. ditto, male, Gangwondo Province, Korea; D. X. insularis Ponomarenko & Beljaev, female, Gyeonggido Province, Korea.; E. ditto. female, Gyeongsangnamdo Province, Korea; F. X. vaginata sp. n., male, Gangwondo Province, Korea (holotype); G. ditto, male, Gangwondo Province, Korea (paratype); H. X. triacantha sp. n., male, Jeollanamdo Province, Korea (holotype); I. ditto, male, Chungcheongnamdo Province, Korea.

FIGURE 3. Male genitalia and enlarged valval harpe in Xyrosaris spp (A–H).: A, E. X. lichneuta Meyrick, genitalia slide no. INU-4739; B, F. X. insularis Ponomarenko & Beljaev, genitalia slide no. QNA-12; C, G. X. vaginata sp. n., genitalia slide no. INU-4742 (paratype).; D, H. X. triacantha sp. n., genitalia slide no. INU-4743.

FIGURES 4. Female genitalia of Xyrosaris spp.: A. X. lichneuta Meyrick, genitalia slide no. QNA-15; B. X. insularis Ponomarenko & Beljaev, genitalia slide no. QNA-08; C. X. vaginata sp. n., genitalia slide no. INU-4640; D. X. triacantha sp. n., genitalia slide no. QNA-06 (scale bar=0.5mm).

FIGURES 5. Enlarged stergima (A–D) in female genitalia of Xyrosaris spp.: A. X. lichneuta Meyrick; B. X. insularis Ponomarenko & Beljaev; C. X. vaginata sp. n.; D. X. triacantha sp. n..