Thecobathra latibasis Fan, Jin et Li, 2008

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 : 491

Thecobathra latibasis Fan, Jin et Li, 2008

( Fig. 26 )

Thecobathra latibasis Fan, Jin et Li, 2008: 18 . TL: China (Guangxi). TD: NKU.

Material examined. CHINA, Guangxi: Holotype ♁, Jinxiu County (24.13°N, 110.18°E), 550 m, 13.IV.2002, leg. SL Hao & HJ Xue, slide No. FXM06049.

Additional material. Guangxi: 2♀ , Mulun , 280 m, 12.VIII.2011, leg. SL Hao & YH Sun, slide Nos. LHY21367, LHY21368; 2 ♁ 1♀, Mt. Dayao (24.14°N, 110.09°E), Jinxiu, 823 m, 18‒20.VII.2015, leg. MJ Qi & SN Zhao, slide Nos. LHY21352♁, LHY21353 ♀, LHY21666♁; 1♀, Jiuniutang (25.88°N, 111.49°E), Mt. Mao’er , 1219 m, 15.VIII.2020, leg. H Sun et al., slide No. LHY21360; 14 ♁ 2♀, Mt. Dayao (24.14°N, 110.24°E), Jinxiu, 578 m, 22.VII.2022, leg. H Sun et al., slide Nos. LHY21605♁, LHY21606♁, LHY21669 ♀; Hainan: 1 ♁ 1♀, Mt. Wuzhi , 700 m, 19. V.2007, leg. ZW Zhang & WC Li, slide Nos. JQ 09002♁, JQ09014 ♀; 1♁, Limushan Forest Park, 610 m, 4. V.2017, leg. XF Yang, slide No. LHY21473 .

Diagnosis. Thecobathra latibasis can be distinguished from its congeners by the small and short socius, the valva with a broadly expanded base, and the long, curved spine of the proximal process in the male genitalia ( Fan et al. 2008: 18, fig. 11); in the female genitalia by the lamella postvaginalis being a pair of widely remote processes.

Description. Adult. Wingspan 14.0– 14.5 mm.

Female genitalia ( Fig. 26 ). Papillae anales broad, covered with long setae. Apophyses posteriores 1.8 times length of apophyses anteriores. Lamella postvaginalis composed of paired small, widely remote, rounded processes. Antrum sclerotized, narrowed anteriorly. Ductus bursae 2 times length of corpus bursae, posterior half sclerotized, anterior half membranous. Corpus bursae round; signum narrowed to posterior 2/5, anterior 3/5 uniformly, flange spine-shaped, narrowed to pointed apex.

Distribution. China (Guangxi, Hainan).

Note. The female is described for the first time.

Figures

FIGURES 22–26. Female genitalia of Thecobathra spp. 22, T. acrivalvata, slide No. LHY21217; 23, T. albana, slide No. LHY21265; 24, T. cuneata sp. nov., paratype, slide No. LHY21668; 25, T. lambda, slide No. LHY21678; 26, T. latibasis, slide No. LHY21360. Scales = 0.5 mm.