Palumbina acerosa Lee & Li, 2018

Kyaw, Khine Mon Mon, Yagi, Sadahisa, Oku, Johei & Hirowatari, Toshiya, 2023, Taxonomic study of Palumbina Rondani (Lepidoptera, Gelechiidae, Thiotrichinae) in Japan: biology, immature stages, and a new species, ZooKeys 1165, pp. 61-99 : 61

Palumbina acerosa Lee & Li, 2018

Figs 1C, D , 6B , 7B , 8B , 9B , 11 Japanese name: Kita-mongin-hoso-kibaga

Palumbina acerosa Lee & Li, 2018: Lee et al. 2018: 27, fig. 81. TL: Guizhou, China; TD: NKU.

Thyrsostoma pylartis : Inoue 1954: 67 (partim); Kuroko 1957: 7; Moriuti 1982: 281, pls 13-57 (partim).

Palumbina pylartis : Sakamaki 2013: 298 (partim).

Material examined.

Japan - Honshu [Kanagawa] • 1♂; Yamakita-cho, Lake. Tanzawa; 4 Jun. 2016; Y. Kitajima leg.; KGU. -[Shizuoka] • 1♀; Atami-shi, Himensosawa Koen; 10 Sep. 2002; T. Hirowatari, B. W. Lee, H. Mizukawa, S. Takaki & K. Tateiwa leg.; gen. slide no. KM-426; OPU. • 1♀; Kannami-cho, Kannami-Genseirin; 10 Sep. 2002; T. Hirowatari, B. W. Lee, H. Mizukawa, S.Takaki & K. Tateiwa leg.; OPU. • 1♀; Shibakawa-cho, Inago Iriyama; 20 Aug. 1999; T. Mano leg.; OPU. • 1♀; same data except 28 Aug. 1999; gen. slide no. KM-425; OPU. - [Aichi] • 2♂♂; Kitashidara-gun, Uradani (900m); 17 Sep. 1977; Y. Arita leg.; NSMT. • 1♂; Toyota, Mt. Rokusho-san; 28 Oct. 1976; Y. Arita leg.; NSMT. • 1♂; Higashihagihira, Asahi-cho, Sahara shrine; 30 May 1998; T. Mano leg.; OPU. • 1♂; Asahi-cho, Sakakino; 280m; 20 Jun. 1998; T. Mano leg.; OPU. - [Mie] • 4♂♂, 1♀; Iga-shi; Host: Quercus glauca ; 8 Oct. 2019 em.; Y. Arita leg.; ELKU. - [Osaka] • 1♀; Tottori; 7 Jun. 1994; S. Kosino leg.; OPU. • 1♂; same data except 10 Sep. 1998; OPU. • 1♂; Mt. Inunaki; 22 Nov. 1998; S. Kosino leg.; OPU. - [Wakayama] • 2♂♂, 2♀♀; Kozagawa; 22-28 Oct. 1974 em.; Host: Quercus glauca ; T. Kumata leg.; SEHU. - Shikoku [Ehime] • 1♂, 3♀♀; Matsuyama-Castle areas, Matsuyama-shi; 23, 30 Aug. 2016, LT; J. Oku leg.; KGU. - [Kochi] • 1♂; Iwaidani; 16 Apr. 1964; S. Moriuti leg.; OPU. - Kyushu [Fukuoka] • 1♀; Nishi-ku Fukuoka, Ito Campus; 27 Jun. 2017; T. Hirowatari, S. Yagi, C. Tsuji & K.M.M. Kyaw leg.; ELKU. • 1♂, 1♀; same data except 17 Aug. 2018, LT; S. Yagi leg.; ELKU. • 1♂, 2♀♀; same data except 18 Sep. 2019, LT; J. Oku leg.; ELKU. • 1♂, 1♀; same data except 30 Oct. 2019, LT; K.M.M. Kyaw leg.; ELKU. • 2♀♀; same data except 20 Mar. 2021; S. Yagi leg.; ELKU. • 1♀; Mt. Sefuri , Itaya, Sawara-Ward, Fukuoka-City; 2 Jun. 2019; S. Tomura, K. Sasaki leg.; ELKU. • 1♂; Mt. Hikosan , Soeda, Tagawa-Distinct; 25 Sep. 2014, LT; S. Yagi leg.; ELKU. • 1♀; same data except; 27 Jul. 2015, LT; ELKU. • 1♂; same data except 1 Jul. 2016; gen. slide no. KM-320.; ELKU. - [Oita] • 1♂; Yufu-shi, Meisuinotaki 850m, Mt. Kuro ; 13 Jun. 2015, LT; S. Yagi leg.; gen. slide no. KM-321.; ELKU. - [Kumamoto] • 1♂; Tatsudayama ; 29 Mar. 1960; T. Kawarabata leg.; ELKU. - [Miyazaki] • 1♂; Higashiusuki-gun , Shiiba-son , Research Forest ; 4 Jun. 2018; K. Uemori leg.; ELKU. - [Kagoshima] • 1♀: Tanegashima Is., Nishinoomote ; 13 Jun. 1965; T. Kumata leg.; gen. slide no. KM-376; SEHU. - Ryukyus [Kagoshima] • 2♂; Amamioshima Is., Santaro-toge ( Sumiyo-son ); 30 Apr. 1999; T. Saito leg.; KM-319; OPU. • 2♀♀; Amamioshima Is., Mt. Yuwan , Uken-son ; 6 Jul. 2016 larva; 20 Jul. 2016 em.; Host : Quercus glauca ; S. Yagi leg.; gen. slide no. KM-381; ELKU. • 2♀♀; same data except 6 Jul. 2016 larva; 25 Jul. 2016 em.; gen. slide no. KM-332; SY-197; ELKU. - [Okinawa] • 1♀; Okinawajima Is., Ookuni-rindo ( Kunigami-son ); 26 Mar. 2002; T. Saito leg.; gen. slide no. KM-331; ELKU .

For the diagnosis and detailed description of the adults and genitalia, see Lee et al. (2018).

Distribution.

Japan (Honshu, Shikoku, Kyushu, Ryukyu), China, Korea ( Lee and Jeun 2022), and Taiwan ( Lee et al. 2018). The distribution overlaps that of P. pylartis but tends to be found in the northern regions.

Host plant.

Quercus myrsinaefolia Blume ( Kuroko 1957, see the remarks of P. pylartis ), Q. glauca Thunb. (new host record) ( Fagaceae ).

Biology.

The larval biology is very close to that of P. pylartis except for the host plants. We found young larvae on the host plant Quercus glauca ( Fagaceae ) on Amamioshima Island, behaving as a miner in the midrib of young leaves. This late-instar larva made a portable case by cutting the young leaf into small pieces, mainly around the upper portion (Fig. 11A, B ).

The resting posture of the adult is similar to that of stathmopodid species, keeping their hindlegs upwards (Fig. 9B ).

Figures

Figure 1. Adults of Palumbina spp. A P. pylartis, male B ditto, female C P. acerosa, male D ditto, female E P. grandiunca, male F ditto, female. Scale bars: 4.0 mm.

Figure 6. Male genitalia of Palumbina spp. A P. pylartis, genitalia slide no. KM- 383 B P. acerosa, genitalia slide no. KM- 320 C P. grandiunca, genitalia slide no. SY 1454 D P. operaria, genitalia slide no. KM- 389 E P. macrodelta, genitalia slide no. SY 1455 F P. muraseae sp. nov., holotype, genitalia slide no. KM- 374. Scale bars: 0.40 mm.

Figure 7. Abdominal segments of Palumbina spp. A P. pylartis, slide no. KM- 383 B P. acerosa, slide no. KM- 320 C P. grandiunca, slide no. SY 1454 D P. operaria, slide no. KM- 389 E P. macrodelta, slide no. SY 1455 F P. muraseae sp. nov., holotype, slide no. KM- 374. Scale bars: 1.0 mm.

Figure 8. Female genitalia of Palumbina spp. A P. pylartis, genitalia slide no. KM- 330 B P. acerosa, genitalia slide no. KM- 381 C P. grandiunca, genitalia slide no. SY 1453 D P. operaria, genitalia slide no. Palumbina No. 1 E P. macrodelta, genitalia slide no. KM- 328 F P. muraseae sp. nov., whole genitalia, genitalia slide no. KM- 348 and signum, genitalia slide no. KM- 427. Scale bars: 0.50 mm.

Figure 9. Resting position of adult Palumbina spp. A P. pylartis, female B P. acerosa, female C P. grandiunca, female D P. muraseae sp. nov., male.

Figure 11. Palumbina acerosa feeding on host plant Quercus glauca (Fagaceae) in Amamioshima Is. A, B larval leaf cases.