11. Scirpophaga linguatella sp. n.

Figs. 3, 5

Diagnosis

This species is placed in the excerptalis­ group on the basis of the genital structure. S. linguatella is similar to S. flavidorsalis, but differs in forewing maculation: ochreous, with a dark fuscous spot at the lower angle of the cell in S. flavidorsalis, white, without any spots in S. linguatella . In the genitalia, the subteguminal process of S. linguatella is lobelike and linguiform, while in S. flavidorsalis it is tuberculate; three cornuti present in S. linguatella, while only one cornutus present in S. flavidorsalis; the length of tegumen in S. linguatella is longer than that in S. flavidorsalis .

Description

Male: Expanse 24 mm. Head and thorax white. Labial palpus produced forward, length approximately 3 times diameter of compound eye. Forewing white, underside fuscous, with vein R1 anastomosed with Sc; hindwing white, underside pale fuscous. Genitalia with uncus and gnathos slender, gnathos bent towards uncus; tegumen with dorsal sclerotized thickening X­shaped; subteguminal process lobe­like, linguiform, weakly sclerotized; valva relatively short; juxta plate­like; coremata present; aedeagus slender, swollen in apical 1/3; manica with two groups of spines; three plate­like cornuti.

Female: Unknown.

Material examined

Holotype (♂): Menghai, Xishuangbanna, Yunnan, China, 21.9 °N 100.5 °E, 1400–1600m, 21.VII.1958, Wang Shuyong (S388, IOZ (E) 202972). Paratype: 1♂, Mengla, Xishuangbanna, Yunnan, China, 21.4 °N 101.5 °E, 620–650m, 29.V.1959, ZhangYiran (S528, IOZ (E) 202973).

Distribution

China: Yunnan.

Etymology

This species is named for the lingual subteguminal process.