Sorolopha viridis Sakagami 2023, sp. nov.
Creators: name: Sakagami, Kota
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tortricidae
Sorolopha
Sorolopha viridis

description: Sorolopha viridis Sakagami, sp. nov.
(Figs 5, 6, 8, 13, 18)
urn:lsid:zoobank.org:act: 26A66E95-D789-4B0B-A19C-234C0AA258C9
Diagnosis. Sorolopha viridis has a mean forewing length of 7.5 mm (6.6–8.3 mm, n = 37), with little or no sexual dimorphism. The forewing is expanded posteriorly, and is jade green with a rounded brown marking in the apical area. S. viridis is similar to S. latiuscula Zhao, Bai & Yu, 2017 described from China, but the head and thorax of S. viridis are greenish, and pale green fasciae of the forewing are narrower (cf., Zao et al. 2017: 595, figs. 1, 4). Additionally, the cucullus is narrower, and ventral process of cucullus is narrower in S. viridis. The male genitalia are also similar to those of S. cucphuongensis Bae & Le 2013 (cf., Le et al. 2013: 524, fig. 20), but those of S. viridis can be distinguished by a semicircular ventral process of the valva and a shorter cucullus.
Description. Head (Fig. 6): Frons and labial palpus dark green mixed with yellow; vertex jade green; antenna dark brown.
Thorax: Dark green tinged with yellow; tegula jade green; legs beige dorsally; foreleg tarsus black, tibia and femur beige with blackish scales; midleg beige, tibia and tarsus beige with scattered blackish scales, hindleg tibia and tarsus black, femur beige with blackish scales. Forewing (Fig. 5) mean length 7.2 mm in male (6.6–7.8 mm, n = 15), 7.6 mm in female (6.8–8.3 mm, n = 22); costa arched especially in basal half, termen slightly curved, dorsum straight. Ground color jade green, nine pairs of strigulae represented by small light green streaks, light green fascia running obliquely from third and fourth strigulae to 1/2 dorsum, oblique dark green band extending from between fifth and seventh strigulae to near tornus, nearly straight apical margin edged with light brown scales, greenish gray area from 2/5 costa to tornus and apex, with a large, roundish brown, subapical mark extending from R 4 to near CuA 1. Cilia brown with black edge. Hindwing dark brown, paler towards base, depressed around M 2. Cilia light brown.
Abdomen: Dark brown dorsally, beige ventrally. Male genitalia (Fig. 13) with tegumen high, narrowed towards apex, erect-subtriangular. Uncus small, semicircular. Socius about 1/2 length of tegumen, slender, slightly curved at middle with sparse hairs, denser apically. Valva moderate in width, narrowed at middle; sacculus obtuse with dense short hairs; ventral process rounded, with dense short spines and long hairs; terminal part of cucullus short, narrow, with dense long hairs. Phallus lightly sclerotized, medium in length, and slightly curved. Female genitalia (Fig. 18) with posterior margin of S7 with angular, short excavation. Sterigma sclerotized, funnel-shaped, with small Vshaped cleft. Ductus bursae sclerotized in posterior 2/5, membranous in anterior 3/5, slender, 1.7 times as long as corpus bursae, ductus seminalis originating in anterior 1/5, bulla seminalis spherical, half as long as corpus bursae. Corpus bursae ovate with single granulate signum.
Material examined. Holotype. JAPAN: HONSHU: Gifu Pref.: Tokudadani (35°13′15″N, 136°34′23″E, alt. 96 m), ♂, emerged on 4.VI.2021, reared from leaves of Illicium anisatum collected on 3.V.2021, K. Sakagami leg., genitalia slide KS231♂. Paratypes. JAPAN: HONSHU: Gifu Pref.: Ikuridani (35°14′31″N, 136°25′26″E, alt. 257 m), Ôgaki-shi, 1♂, 4♀, emerged on 4–8. VI.2021, reared from leaves of I. anisatum collected on 3. V.2021, K. Sakagami leg.; Tokudadani (35°13′15″N, 136°34′23″E, alt. 96 m), 1♂, 4♀, emerged on 4–6. VI.2021, reared from leaves of I. anisatum collected on 3. V.2021, K. Sakagami leg.; Hanedani (35°12′10″N, 136°35′35″E, alt. 177 m), Kaizu-shi, 2♂, 3♀, emerged on 29. V.–4. VI.2021, reared from leaves of I. anisatum collected on 2. V.2021, K. Sakagami leg. Mie Pref.: Omata, 1♀, emerged on 29. VI.1957, reared from leaves of I. anisatum, T. Kodama leg., genitalia slide KS 235♀, (OMU). Wakayama Pref.: Hirai (33°40′N, 135°40′E, alt. 362 m), 12♂, 22♀, emerged on 2–5. VI.2018, reared from leaves of I. anisatum collected on 9. V.2018, K. Sakagami leg., genitalia slide KS149♂, 191♂, 192♀, 194♂, 196♂. Hyogo Pref.: Kirihata (34°51′N, 135°18′E, alt. 125 m), 1♂, 2♀, emerged on 5–11. VI.2018, reared from leaves of I. anisatum collected on 15. V.2018, K. Sakagami leg., genitalia slide KS 209♀. NANSEI ISLANDS: Yakushima Is.: Shiratani, (alt. 600 m), 1♀, 16.IX.1978, T. Saito leg., genitalia slide KS 234♀, (OMU).
Distribution. Japan (Honshu, Yakushima Is.).
Host plant. Illicium anisatum (Schisandraceae).
Biology. Adults emerge from leaf shelters of the host plant, Illicium anisatum, between May and June in Honshu. An adult was collected on Yakushima Is. in September. Larvae tie together young leaves of I. anisatum and feed on the leaves within the leaf shelters in early May (Fig. 22).
Etymology. The name is derived from the Latin viridis (= green), referring to the green color of the body and the forewing.
Remarks. This species belongs to the cyclotoma group (Diakonoff, 1973). This is the first record of the plant family Schisandraceae as a host for Sorolopha. Sorolopha viridis may be distributed as far as Okinawa Is. because I. anisatum, the host plant, occurs there (Okawa and Hayashi, 2016).
description: Published as part of Sakagami, Kota, 2023, Review of the species of Sorolopha Lower (Lepidoptera: Tortricidae) in Japan with descriptions of three new species, pp. 131-142 in Zootaxa 5278 (1) on page 135, DOI: 10.11646/zootaxa.5278.1.6, http://zenodo.org/record/7895134