Neostatherotis psilata, Luo, Jiuyang, Fei, Yao & Yu, Haili, 2015

Luo, Jiuyang, Fei, Yao & Yu, Haili, 2015, First record of the genus Neostatherotis Oku from China, with the descriptions of four new species (Lepidoptera: Tortricidae: Olethreutinae), Zootaxa 3941 (2), pp. 247-254 : 248-249

Neostatherotis psilata , sp. nov.

Figs. 1 , 5

Type. Holotype: ♂, Nanling (23°20' N, 115°23' E), Guangdong Province, 13.VIII.2003, leg. Wangmin, genitalia slide no. YHL07121.

Diagnosis. This new species resembles Neostatherotis pallidtornus Razowski, 2009 in the male genitalia, but it can be separated from the latter by the arched costa of the forewing and by the uniform width of the valva in the male genitalia. In N. pallidtornus , the costa of the forewing is sinuate; and the valva is broadened distally, and the cucullus is distinctly broader than the sacculus in the male genitalia.

Description. Adult ( Fig. 1 ). Head: Vertex roughly scaled, pale fuscous. Frons smooth, pale yellow. Antenna earthy yellow. Labial palpus fuscous, ascending; median segment not expanded, terminal segment pointed.

Thorax: Pale yellow, dusted with pale fuscous; tegula pale fuscous, with a pale yellow dot on median part. Legs white; hind tibia in male normally scaled, with one white hair pencil at base. Forewing length 7.5 mm; costa arched, basal half expanded slightly; apex blunt; termen oblique, rounded toward tornus; costal strigulae white, suffused with pale yellow slightly, without striae; fasciae deep fuscous; basal fascia narrow; strigulae one and two extending to basal part of fold; subbasal fascia broad, lower part confluent with basal fascia, distal edge extending from 1/4 length of costa to 1/3 length of fold, finally reaching base of dorsum; strigulae three and four with upper edge from 1/4 to 1/2 length of costa, confluent between costa and fold, and extending outward from upper edge of cell to outer edge of cell, forming a large oblique rounded blotch; median fascia rhomboid, upper edge between 2/5 length and 3/5 length of costa, lower edge between midlengths of R2 and R3, proximal and lower parts suffused with ochreous; postmedian fascia confluent with preterminal fascia, fuscous, rhomboid, below costa between strigula five and strigula nine, extending from outer edge of median fascia to midlengths of R4 and R5, reaching area between midlength of M1 and termen; terminal fascia a line with ochreous margin proximally; a triangular blotch proximal to tornus, white suffused with ochreous, upper edge from 1/3 length of M1 to termen straightly, proximal edge from 1/3 length to the distal part of fold; one cluster of dense scales on base of dorsum, apricot; cilia pale yellow, deep fuscous on dorsum; underside fuscous, except strigulae three to four and area under large oblique rounded blotch in upperside pale yellow, and area of hindwing overlapping white. Hindwing upperside fuscous, costal area overlapping with forewing white; cilia pale fuscous, with fuscous baseline; underside pale fuscous.

Abdomen: Male genitalia ( Fig. 5 ) with uncus a short hook. Socius drooping, rectangular, densely spined. Valva curved, somewhat broad, nearly uniform in width; neck indistinct, sparsely spined; sacculus broad, covered with short spines; cucullus densely covered with spines, short, less than half (but more than one-third) length of valva, slightly protruding ventrally at base, forming a blunt ventral prominence, with a strong thorn distally. Phallus sclerotized weakly, moderate, acute distally, without cornuti.

Etymology. The specific name is derived from the Latin psilatus (= smooth), referring to the shape of costa in forewing.

Figures

FIGURES 1 – 4. Adults of Neostatherotis spp. 1. N. psilata sp. nov., ♂, holotype; 2. N. sparsula sp. nov., ♂, holotype; 3. N. angustata sp. nov., ♂, holotype; 4. N. breviuscula sp. nov., ♀, paratype.

FIGURES 5 – 10. Genitalia of Neostatherotis spp. 5. N. psilata sp. nov. (slide no. YHL 07121), holotype; 6. N. sparsula sp. nov. (slide no. YHL 12014), holotype; 7. N. angustata sp. nov. (slide no. YHL 07132), holotype; 8. N. breviuscula sp. nov. (slide no. LKL 13179), paratype; 9. N. angustata sp. nov. (slide no. YHL 07163), paratype; 10. N. breviuscula sp. nov. (slide no. LKL 13180), paratype.