Nagehana maulina Urra, 2023

Urra, Francisco, Araneda, Sebastián & Moreira, Gilson R. P., 2023, New species of Oecophoridae (Lepidoptera: Gelechioidea) from Chile, Zootaxa 5254 (2), pp. 209-230 : 218

Nagehana maulina Urra sp. nov.

( Figs. 11, 12 , 29, 30 , 46, 47 ).

Diagnosis. Nagehana maulina differs from N. rustica , the type species, mainly by the presence of juxta lateral lobes, structures absent in N. rustica ( Clarke 1978) . The color pattern of N. maulina is similar to that of N. chagualphaga , since both species have a white FW with a dark gray basal and costal spot. N. maulina can be distinguished by examining the genital structures of the male and female. In N. maulina the lobes of the juxta have thick setae, the cucullus of the valva has abundant thick hair-like setae and in the female the antrum is subconical and the posterior end of the ductus bursae is sclerotized. In N. chagualphaga the lobes of the juxta are somewhat capitate, without setae, the cucullus of the valva has simple setae and in the female the antrum is tubular and the ductus bursae membranous ( Beéche 2003).

Description

Male ( Fig. 11 ). Wingspan: 15.4–18.8 mm (n = 11).

Head. Front and vertex greyish; flagellum, scape and pecten dark grey; labial palpus white, second segment brown in the basal half, third segment brown in the basal and distal third ( Fig. 12 ); haustellum light grey.

Thorax. White, anterior edge dark grey, tegulae white, brown at the base. FW white, basal, medial and apical costal spots dark brown, black spots on base and distal end of DC, diffuse brown spot on subbasal and subterminal anal border; fringes grey. HW greyish white, fringes concolorous. Fore- and midlegs dark grey, tarsomeres annulated, hind tibia with yellowish white piliform scales.

Abdomen. Greyish white. Terga with spiniform setae arranged in wide patches ( Fig. 30 ).

Male genitalia ( Fig. 46 ). Uncus as long as gnathos, gnathos mesal surface scobinate with short spinulae, juxta subtriangular, lateral lobes with stout spines on external edge; valva subtriangular, longer than wide, cucullus covered profusely by thick setae, internal process of sacculus hook-shaped; phallus almost as long as valva, curved ( Fig. 46b ), vesica unarmed.

Female. Color pattern similar to male. Wingspan: 15.2–18.8 mm (n = 3).

Female genitalia ( Fig. 47 ). Apophysis posterioris 1.8 times as long as apophysis anterioris; ostium bursae transverse, antrum tubular sclerotized, one-third as long as ductus bursae; ductus bursae 1.1 times as long as corpus bursae, not spiral-shaped, posterior third sclerotized; corpus bursae subspherical, without signum.

Type material. Holotype: (♁) CHILE CAUQUENES, RN Los Ruiles , 22-II-2018, Trampa luz col. F. Urra ( MNNC) . Paratypes: (1♀) CHILE CURICO, Teno La Montaña , 34°59′42″ S 70°48′50″ W, 7-III-2015, Trampa luz col. F. Urra ( MNNC); (1♁) CHILE CURICO, Teno La Montaña , 34°59′42″ S 70°48′50″ W, 14-X-2012, Trampa luz col. F. Urra ( MNNC); (2♀, 10♁) CHILE CURICO, Teno La Montaña , 34°59′42″ S 70°48′50″ W, 10-III-2018, Trampa luz col. F. Urra ( MNNC); (1♁) CHILE CAUQUENES, RN Los Ruiles , 22-II-2018, Trampa luz col. F. Urra ( MNNC) .

Distribution. Central Chile (Curicó, Cauquenes).

Etymology. The specific name refers to “ Region del Maule ”.

Figures

FIGURES 7–12. Habitus (scale bar = 5.0 mm) and labial palpi (scale bar = 0.5 mm) of the new species of Oecophoridae.Gildita versicolora Urra sp. nov. (7–8), Glorita nahuelbutensis Urra sp. nov. (9–10), Nagehana maulina Urra sp. nov. (11–12).

FIGURES 25–30. Wing venation and detail of male (Fig. 26) and female abdomen of the new species of Oecophoridae. Gildita versicolora Urra sp. nov. (25–26), Glorita nahuelbutensis Urra sp. nov. (27–28), Nagehana maulina Urra sp. nov. (29–30) (scale bar = 1.0 mm).

FIGURES 43–47. Male genitalia, without left valva (a) and aedeagus removed (b), and female genitalia of the new species of Oecophoridae. Gildita versicolora Urra sp. nov. (43), Glorita nahuelbutensis Urra sp. nov. (44–45), Nagehana maulina Urra sp. nov. (46–47) (scale bar = 0.5 mm).