Teleiodes juglansivora Park & Byun, 2021

Park, Kyu-Tek, Heo, Un-Hong & Byun, Bong-Kyu, 2021, Two new species of Gelechiidae (Lepidoptera) from Korea, with some biological data including larval host plants, Zootaxa 4996 (2), pp. 301-308 : 302-304

Teleiodes juglansivora Park & Byun , sp. nov.

LSIDurn:lsid:zoobank.org:act: D37F5AF2-71C8-48D4-BA62-059FBE25CCF6

( Figs 1A–G , 3A, B )

Type specimens. Holotype: ♀, Wonteo, Dongmyeon, Hongcheon , Gangwon Prov., 24.vii.2020 (larva collected on 9 vii 2020 from Juglans mandshurica , leg. UH Heo, gen. slide no. CIS-8152, deposited in NIBR.

Paratypes: 1♀, Mt. Gari-san , Hongcheon, 4.viii.2020 (larva collected on 15.vii.2020 from Juglans mandshurica , leg. UH Heo, gen slide no. CIS-8149; 1♀ (abdomen missing), Miyaggol, Seoseok-myeon, Hongcheon, 11.viii.2020 (larva collected on 17.vii.2020) from the same host, leg, UH Heo, wing slide no. CIS-8176, deposited in KNA.

Diagnosis. The female genitalia are similar to those of the European species, Teleiodes luculella Hübner, [1813] ) or T. flavimaculella ( Herrich-Schäffer, 1854) , but it can be distinguished from the latter by the following characters: 1) the ostium bursae is produced distally with convex apical margins dorsally and slightly convex ventrally in the new species, whereas that in the latter is deeply emarginated in apical margin; 2) the signum is cross-shaped, but that of the both species is rhomboid.

Description. Female ( Figs 1A–D ). Wingspan 14.0– 14.5 mm.

Head: Dark brown dorsally. Antenna with scape elongated, thicker toward apex, dark fuscous; flagellum dark fuscous, with yellowish white annulations. Second segment of labial palpus thickened with appressed rough scales, grayish-white with fuscous bands at base, middle and before apex on outer surface, more grayish white on inner surface; 3 rd segment shorter than 2 nd segment, grayish white with dark fuscous broad bands at middle and before apex.

Thorax: Thorax and tegula dark fuscous. Hind tibia with orange-gray rough setae dorsally. Forewing lanceolate, with sharply produced apex; ground color dark fuscous, with yellowish-brownish indistinct spots irregularly presented; antemedian fascia black, oblique, narrow banded, arising from basal 1/5 of costa to 1/3 of inner margin; fringe concolorous with ground color; venation with R 1 before middle of cell; distance between R 1 and R 2 at base about 1.5 times the distance between R 2 and R 3; R 3 free, arising from upper corner of cell;; R 4 and R 5 stalked for about basal 2/5; R 5 to costa; M 1 free from R 4+5; M 2 present, nearer to M 3 at base; M 3 arising from lower corner of cell; CuA 1 free, arising from near the lower corner of cell; 1A+2A long-forked in basal 1/3; cell weakly closed. Hind wing as broad as forewing, grayish white, venation with M 1 approximated to Rs; M 2 present, slightly arched before middle; fringe concolorous with ground color; venation with M 3 arising from lower corner of cell; CuA 1 near to M 3 at base; CuA 2 arising from beyond 2/3; cell closed.

Female genitalia ( Figs 1F, G ): Apophyses anteriores thick, long, about 1/2 the length of apophyses posteriors. Ostium bursae hood-shaped, heavily sclerotized; dorsal plate produced apically, strongly convex; ventral plate slightly convex apically.Antrum short, cylindrical, membranous, extending to about 1/3 the length of ostium bursae. Ductus bursae narrow, about 1.5 times the length of corpus bursae; broader toward corpus bursae. Ductus seminalis arising from distal 1/3 of ductus bursae, narrow, about 1/4 the width of ductus bursae. Corpus bursae large, ovate; signum cross-shaped, with elongated upper and lower plates serrate along lateral margins, and with a deep, broad transverse burrow centrally.

Male unknown.

Biology. Three larvae feeding on leaves of Juglans mandshurica were collected on 9.vii, 15.vii, and 17.vii.2020, and reared while providing fresh leaves of the host plant. The moths emerged on 24.vii and 4.viii.2020. It is the first record that the plant species of Juglans serves as a host for the Teleiodes species of moths.

Distribution. Korea.

Etymology. The species is derived from the genus name, Juglans , of the host plant.

Figures

FIGURE 1. Teleiodes juglansivora Park & Byun, sp. nov. A, adult, holotype; B, ditto, close-up right forewing; C, under surface of wings, with name of veins; D, head and labial palpus, in lateral view; E, hind tibia, paratype; F, female genitalia, holotype, gen slide no. CIS-8152; F, ditto, paratype, gen slide no, CIS-8149. Scale bar for the genitalia and aedeagus: 1.0 mm.

FIGURE 3. Larvae. A, matured larva of Teleiodes juglansivora Park & Byun, sp. nov.; B, ditto, prepupation in the silk-net; C, matured larva of Encolapta najuensis Park & Byun, sp. nov.