Thecobathra microsignata Liu, 1980

Liu, Haoyu & Wang, Shuxia, 2023, Taxonomic study of the genus Thecobathra Meyrick (Lepidoptera: Yponomeutidae) in China, with descriptions of eight new species, Zootaxa 5325 (4), pp. 483-508 : 495-496

Thecobathra microsignata Liu, 1980

( Fig 16 )

Thecobathra microsignata Liu, 1980: 37 . TL: China (Yunnan). TD: IZCAS.

Material examined. CHINA, Yunnan: 13♁, Nankang (24.82°N, 98.78°E), 2009 m, 17.VIII.2014, leg. KJ Teng et al., slide Nos. LHY21535, LHY21733, LHY21734, LHY21737, LHY21738; 37♁ 3♀ , Nankang (24.82°N, 98.78°E), 2009 m, 16‒21.VII.2015, leg. KJ Teng & X Bai, slide Nos. LHY21546♁, LHY21547♁, LHY21548♁, LHY21647 ♀ , LHY21686 ♀, LHY21735♁, LHY21736 ♀.

Diagnosis. Thecobathra microsignata is characterized by the subtriangular sacculus with sclerotized band along dorsal and ventral margins, and the cornuti with spines along inner margins. It is similar to T. setulosa sp. nov., and the differences between them are stated in the diagnosis of the latter species.

Description. Adult. Wingspan 14.5‒15.5 mm.

Male genitalia ( Fig. 16 ). Uncus mound-shaped, bifid. Socius narrow basally, inflated medially, narrowed to apex distally, with two thorns apically. Subscaphium narrow, parallel-sided. Ventral plate of gnathos long, narrowed anteriorly, concave in V shape posteriorly, densely setose. Valva narrower and subparallel-sided basally, widened at basal 1/4, thereafter narrowed to rounded apex; dorsoproximal process gradually narrowed, with a long, slender spine curved backward at base, nearly straight distally; inner process narrow, elongate triangular. Sacculus subtriangular, truncate obliquely inward apically; sclerotized, narrow band along dorsal and ventral margins; dorsal band arched, rectangularly produced and free distally; ventral band about 1/2 length of dorsal band. Saccus with posterior 1/4 V-shaped, anterior 3/4 narrow and subparallel sided to rounded apex. Aedeagus straight, 1.5 times length of saccus, with a row of teeth along distal half of one side, densely dentate from 1/2 to 5/6 along the other side; cornuti consisting of two horns, with narrow bands extending from its base to middle length of aedeagus, with several spines along inner margin, apical spine largest.

Distribution. China (Yunnan).

Note. The male is described for the first time.

Figures

FIGURES 15–18. Male genitalia of Thecobathra spp. 15, T. meniscata sp. nov., holotype, slide No. LHY21528; 16, T. microsignata, slide No. LHY21734; 17, T. minutiprocessa sp. nov., holotype, slide No. LHY21667; 18, T. odontoidea sp. nov., holotype, slide No. LHY21068. Scales = 0.5 mm.