Thecobathra lambda ( Moriuti, 1963 )

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 : 489-491

Thecobathra lambda ( Moriuti, 1963)

( Figs 3 , 13 , 25 )

Pseudocalantica lambda Moriuti, 1963: 222 . TL: China (Taiwan). TD: Issiki collection.

Thecobathra lambda (Moriuti) : Moriuti, 1971: 237.

Thecobathra taiwanensis Sohn, 2018: 379 . Syn. nov.

Material examined. CHINA, Anhui: 1♀, Ke Village, Mt. Jiuhua , 8.VIII.2004, leg. JS Xu & JL Zhang, slide No. FXM06038 ; Chongqing: 3♁ 1♀, Mt. Jinfo , 800–850 m, 15‒16.VIII.2011, leg. XC Du, slide Nos. LHY21482♁, LHY21641 ♀ ; 10♀, Aikou Town , Xiushan County, 570 m, 27.VII.2012, leg. YH Sun & AH Yin, slide Nos. LHY21487, LHY21488, LHY21489; Fujian: 1♁, Sangang, Mt. Wuyi , 740 m, 24. V.2004, leg. HL Yu, slide No. FXM06067 ; 1♀, Mt. Tianzhu (27.76°N, 117.66°E), Xiamen, 220 m, 1.VIII.2010, leg. BB Hu & J Zhang, slide No. LHY21310; 1♁, Fuzhou National Forest Park (26.17°N, 119.28°E), 146 m, 23.VII.2020, leg. MJ Qi & XY Jin, slide No. LHY21298; Gansu: 3♁, Bifenggou, Wen County, 860 m, 9‒12.VII.2005, leg. HL Yu, slide No. JQ08246; Guangdong: 2♀, Shimentai (24.46°N, 113.09°E), 743 m, 16.VIII.2022, leg. H Sun et al., slide Nos. LHY21621, LHY21622 ; Guangxi: 2♁, Huaping, 950 m, 7‒8.VIII.2006, leg. WC Li, slide Nos. FXM06111, FXM06114; 1♁, Jinhekou, Jinxiu, 650 m, 28.IV.2008, leg. H Zhen & L Zhang, slide No. JQ07382 ; 1♁, Pingxiang, 280 m, 28.III.2012, leg. XF Yang, slide No. LHY21372; Guizhou: 1♁, Dongtang , Maolan, 26. V.1998, leg. QR Liao, slide No. L 00024; 8♁ 1♀, Linjiang , Xishui, 500 m, 24‒25.IX.2000, leg. HL Yu, slide Nos. YHL00293♁, YHL00310 ♀ ; 3♁, Mt. Cheng , Daozhen County, 1300 m, 19.VIII.2004, leg. YL Xiao, slide Nos. FXM06035, JQ08249 ; 4♁, Guo Village, Daozhen County, 1300 m, 20.VIII.2004, leg. YL Xiao, slide No. FXM06027; 9♁, Fangxiang Town , 900 m, 13‒14.IX.2005, leg. JL Zhang, slide No. FXM06090 ; 6♁ 6♀, Banzhai Village (25.23°N, 108.03°E), 530 m, 11‒13.VIII.2018, leg. ML Zheng et al., slide Nos. LHY21505♁, LHY21506♁, LHY21507♁; 4♀, Mt. Foding (27.35°N, 108.16°E), Shiqian , 618 m, 18.VII.2019, leg. MR Xing et al., slide Nos. LHY21643, LHY21680; Hainan: 1♁, Mt. Diaoluo , 100 m, 16.IV.2008, leg. BB Hu & HY Bai, slide No. JQ08247; 2♁ 1♀, Mt. Wuzhi , 31. V.2010, leg. BB Hu & J Zhang, slide Nos. LHY21382♁, LHY21383 ♀, LHY21384♁; 6♀, Mt. Wuzhi (18.86°N, 109.67°E), 700 m, 18.IV‒12. V.2013, leg. YH Sun et al., slide Nos. LHY21389, LHY21395; 22♁ 13♀, Hongxin Village (19.08°N, 109.52°E), Yuanmen Town, Baisha County, 430 m, 14‒29.IV.2014, leg. TT Liu et al., slide Nos. LHY21400♁, LHY21401♁, LHY21402 ♀, LHY21404♁, LHY21406♁; 45♁ 6♀, Hongkan (19.08°N, 109.50°E), Yinggeling, 508 m, 26‒28. VI.2014, leg. PX Cong et al., slide Nos. LHY21411♁, LHY21412♁, LHY21676 ♀; 5♁ 1♀, Hongxin Village (19.07°N, 109.52°E), Yuanmen Town, Baisha County, 460 m, 29. VI ‒1.VII.2014, leg. PX Cong et al., slide Nos. LHY21413♁, LHY21446♁, LHY21677♁, LHY21678 ♀; 1♁ 2♀, Mt. Wuzhi Natural Reserve (18.54°N, 109.40°E), 742 m, 3‒ 6.VII.2014, leg. PX Cong et al., slide No. LHY21414♁; 4♀, Mt. Limu Forest Park (19.10°N, 109.44°E), 607 m, 13‒15. V.2015, leg. PX Cong et al., slide No. LHY21447; 1♀, Mt. Wuzhi Natural Reserve (18.53°N, 109.39°E), 742 m, 20. V.2015, leg. PX Cong et al., slide No. LHY21449; 5♁ 1♀, Hongkan (19.08°N, 109.50°E), Yinggeling, 508 m, 13‒17. VI.2015, leg. PX Cong et al., slide No. LHY21452♁; 1♀, Mt. Limu Natural Reserve (19.17°N, 109.73°E), 632 m, 3.VII.2015, leg. QY Wang et al., slide No. LHY21453; 2♁ 7♀, Shuiman Town (18.88°N, 109.67°E), Mt. Wuzhi, 766 m, 5‒7.VII.2015, leg. QY Wang et al., slide No. LHY21454♁; 11♁ 5♀, Hongkan (19.08°N, 109.50°E), Yinggeling, 540 m, 23‒28.VII.2015, leg. QY Wang et al., slide Nos. LHY21456 ♀, LHY21670♁; 2♁, Yaxing Village (19.02°N, 109.40°E), Nankai Town, Baisha County, 312 m, 29.VII.2015, leg. QY Wang et al., slide No. LHY21457; 10♁ 1♀, Hongxin Village (19.07°N, 109.52°E), Yuanmen Town, Baisha County, 445 m, 31.VII‒3.VIII.2015, leg. QY Wang et al., slide Nos. LHY21458 ♀, LHY21662♁, LHY21663♁, LHY21664♁, LHY21665♁ ; 5♀, Hongkan (19.08°N, 109.50°E), Yinggeling, 540 m, 21.I.2016, leg. X Bai et al., slide No. LHY21459; 1♁ 1♀ , Shuiman Town (18.88°N, 109.67°E), Mt. Wuzhi , 766 m, 27‒28.II.2016, leg. QY Wang et al., slide No. LHY21460♁; 2♁, Hongkan (19.08°N, 109.50°E), Yinggeling, 540 m, 5‒7.III.2016, leg. QY Wang et al., slide Nos. LHY21464♁, LHY21465♁; Henan: 1♁ 1♀, Lingshan Temple , Luoshan County, 350 m, 22. V.2000, leg. HL Yu, slide No. YHL00233♁; 9♁ 6♀, Shuiliandong , Tongbai, 300 m, 11‒14.IX.2000, leg. HH Li & O Karsholt, slide Nos. YHL00288 ♀, YHL00291♁, YHL00292♁, YHL00305 ♀, YHL00306 ♀, YHL00307 ♀, FXM06066♁, FXM06107♁, FXM06116 ♀; Hong Kong: 2♁, Xincun, Lincun, 60 m, 15.IX.2009, leg. HH Li et al., slide No. JQ09012; 1♁, Kadoorie Farm and Botanic Garden, 210 m, 17.IX.2009, slide No. JQ09013; Hubei: 1♁, Hefeng, 1260 m, 15.VII.1999, leg. HH Li et al., slide No. YHL00096; 1♁, Taohuachong (30.99°N, 116.03°E), 635 m, 27. VI.2014, leg. W Guan & MQ Yang, slide No. LHY21315; 3♁, Mt. Wu (31.09°N, 115.80°E), Yingshan County, 880 m, 28‒30. VI.2014, leg. W Guan & MQ Yang, slide Nos. LHY21316, LHY21317; Hunan: 5♁ 4♀, Heping Village , Chengguan Town, Taojiang County, 26.VII.2004, leg. YL Xiao, slide Nos. FXM06030 ♀, FXM06070♁, FXM06071♁, JQ09027 ♀; 2♁, Maqiao Village , Baituo Town, Xiangtan, 30.VII.2004, leg. YL Xiao, slide No. FXM06095; 2♁ 3♀, Cangxi Town , Xinhua County, 8‒ 9.VIII.2004, leg. YL Xiao, slide Nos. FXM06043 ♀, FXM06044 ♀, JQ08253♁; 1♁, Mt. Mang (24.98°N, 112.86°E), 541 m, 24.VII.2020, leg. H Sun et al., slide No. LHY21328; Zhejiang: 1♁, Renchuan Town (28.85°N, 120.46°E), Jinhua, 909 m, 30.VII.2015, leg.AH Yin et al., slide No. LHY21160; 29♁ 60♀, Mt. Changgang National Forest Park (30.01°N, 122.1°E), Zhoushan, 64 m, 3‒6.VIII.2016, leg. QY Wang et al., slide Nos. LHY21135 ♀, LHY21146 ♀, LHY21232♁, LHY21234♁, LHY21235♁, LHY21253♁, LHY21284♁, LHY21285♁, LHY21288 ♀, LHY21292 ♀, LHY21293♁, LHY21294 ♀, LHY21295♁, LHY21672 ♀, LHY21673 ♀; 8♁ 17♀, Zhoushan (30.01°N, 122.08°E), 109 m, 20.VIII.2017, leg. SN Qian et al., slide Nos. LHY21256 ♀, LHY21290♁, LHY21291♁, LHY21296♁, LHY21297 ♀, LHY21674 ♀, LHY21675♁; 1♁ 3♀, Fuze Village (29.34°N, 119.13°E), Chun’an County, 144 m, 4.VIII.2018, leg. S Yu et al., slide Nos. LHY21112♁, LHY21113 ♀, LHY21182 ♀.

Diagnosis. Adult ( Fig. 3 ). Wingspan 12.0‒17.0 mm. Thecobathra lambda is diagnosed in the male genitalia by the valva narrowly parallel-sided in the basal half and slightly dilated in the distal half, and with a dentate ridge running from near base to middle half ( Fig. 13 ); in the female genitalia by the subdigitate lamella postvaginalis slightly widened and setose distally, and has a small hump ( Fig. 25 ).

Distribution. Widely distributed in China (Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hong Kong, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Zhejiang), Thailand.

Remarks. Thecobathra taiwanensis Sohn, 2018 was described from a female. The morphological characters of the adult and the female genitalia of the species agree with those of T. lambda . Hence, we propose T. taiwanensis should be a synonym of T. lambda .

Figures

FIGURES 1–6. Adults of Thecobathra spp. 1, T. albana, male, slide No. LHY21451; 2, T. cuneata sp. nov., paratype, female, slide No. LHY21668; 3, T. lambda, male, slide No. LHY21460; 4, T. magnidentalis sp. nov., holotype, male, slide No. YHL00384; 5, T. meniscata sp. nov., holotype, male, slide No. LHY21528; 6, T. minutiprocessa sp. nov., paratype, female, slide No. JQ10078. Scales = 2.0 mm.

FIGURES 11–14. Male genitalia of Thecobathra spp. 11, T. albana, slide No. LHY21419; 12, T. cuneata sp. nov., holotype, slide No. LHY21706; 13, T. lambda, slide No. LHY21452; 14, T. magnidentalis sp. nov., holotype, slide No. YHL00384. Scales = 0.5 mm.

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.