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Tambana tibetica sp. n. (Figs 22, 96) Type material. Holotype. CHINA, male, Aut. Reg. Tibet, Dsagan Bg. 3000 m, Popp Fr. leg., slide GB/ ZSM N 4290 male, coll. ZSM. Diagnosis. Externally T. tibetica differs from related T. succincta and T. subflava by somewhat broader shape of forewings, coarser wing pattern, by shape of reniform represented as two blackish spots and by presence of diffused white patch behind reniform to postmedial line. Hindwing yellow, dissimilar to related species in shape of wide (about one third of wing) diffused terminal band. In the male genitalia the new species is close to T. subflava, sharing some common characters: shape of valva, lateral position of harpe and ear-like lateral extensions in basal part of tegumen. It differs from T. subflava by shape of uncus, narrower valva and narrower, more curved harpe; the aedeagus is much shorter and thicker than in T. subflava; vesica much broader, armed with strongly scobinate carina and two subapical fields of cornuti, missing in T. subflava. Description. Adult (Fig. 22). Wingspan 40 mm. Ground colour of forewing greyish-brown slightly glossy; crosslines dark blackish-brown; antemedial line extends outwardly; orbicular as small rounded whitish spot, encircled with black; medial shadow dark, diffused; reniform as two blackish-brown spots, surrounded with brown shadow on discal vein; whitish dash lies outwardly reniform toward to submedial line and continue to costal area as white suffusion; submedial line waved, in lower part closed with medial shadow; subterminal line broad, diffused, separated on wide streaks; terminal area brown. Hindwing yellow, with broad (about one third of wing length) terminal band. Male genitalia (Fig. 96). Uncus rather, massive, straight, with tiny apical hook; tegumen broad, somewhat shorter than vinculum, with prominent penicular extensions, larger than in T. succincta; vinculum V-shaped; transtilla with moderate lobes; juxta shield-like; valva large, similar in shape to T. succincta, but narrower; constricted in distal half, harpe lies in distal half of valva, much thinner than in T. subflava, more curved; slightly extends dorsal margin of valva. Aedeagus shorter than in T. succincta, but very thick, straight, with broad strongly scobinate carina; vesica broadly tubular, bearing subapical patch of strong moderate cornuti on dorsal side and row of tiny cornuti on ventral side. Female unknown. Etymology. The species named by the region of its type-locality. Distribution and bionomy. The species is known only from the type locality in Tibet, China. The moth was collected at elevation 3000 m. |
