Thiotricha attenuata Omelko, 1993

Lee, Ga-Eun & Li, Houhun, 2024, A taxonomic review of Thiotricha Meyrick, 1886 (Lepidoptera, Gelechiidae, Thiotrichinae) from China, with descriptions of 84 new species, Zootaxa 5449 (1), pp. 1-222 : 28

publication ID	https://doi.org/ 10.11646/zootaxa.5449.1.1
publication LSID	lsid:zoobank.org:pub:CAC513A2-D2B4-4E6E-BAB6-CCE6E054680F
DOI	https://doi.org/10.5281/zenodo.11232955
persistent identifier	https://treatment.plazi.org/id/03CC3667-9820-1D64-FF05-8AADDC9EE371
treatment provided by	Plazi
scientific name	Thiotricha attenuata Omelko, 1993
status

Treatment

Thiotricha attenuata Omelko, 1993 View in CoL

( Figs 7B View FIGURE 7 , 23I View FIGURE 23 , 30C View FIGURE 30 , 48B View FIGURE 48 )

Thiotricha attenuata Omelko, 1993: 212 View in CoL ; 1999: 182; Ueda & Fujiwara, 2005: 75. TL: Primorsky Krai, Russia. TD: ZIRAS. Polyhymno attenuata (Omelko) View in CoL : Park & Ponomarenko, 2007: 39; Ponomarenko, 2008: 91; Sakamaki, 2013: 48, 297.

Material examined. CHINA: Anhui Province: 1 ♀, Mt. Wuling , Xinglong County, 21.vii.2011, leg. Houhun Li and Yanpeng Cai, genitalia slide no. LGE16252 ; 1 ♀, Liuzhaizi Village (40.54°N, 117.35°E), 539 m, Mt. Wuling Nature Reserves , 16.vii.2016, leg. Shengnan Zhao and Suran Li, genitalia slide no. LGE16253 GoogleMaps ; Tianjin Municipality: 1 ♂, Mt. Baxian (40.18°N, 117.55°E), Ji County, 23.vi.2015, leg. Houhun Li et al., genitalia slide no. LGE16138 GoogleMaps ; Henan Province: 1 ♀, Mt. Baiyun (33.68°N, 111.85°E), 1580 m, Luoyang City , 18.vii.2002, leg. Xinpu Wang, genitalia slide no. ZJL05369 GoogleMaps . KOREA: 1 ♀, Gangwon-do, Inje-gun, Girin-myeon , Bangdong-ri , 21.vii.2012, leg. Sung-Soo Kim, genitalia slide no. LGE22108 ( NIBRIN0000714209 ) .

Diagnosis. Adult ( Fig. 7B View FIGURE 7 ). Wingspan 11.0−12.0 mm. Thiotricha attenuata somewhat resembles T. ateriguttata , but can be distinguished by the darker beige or light ocher forewing with a creamy patch on termen. Also, the dorsum is broadly fuscous in T. attenuata whereas it is entirely white in the latter species. The forewing markings are also similar to those of T. parvunca and T. eborinicosta , but T. attenuata has much brighter ground color and a black median line. In T. parvunca and T. eborinicosta , the forewings are dark fuscous with ochre or creamy median lines. The male genitalia ( Fig. 30C View FIGURE 30 ) of T. attenuata are diagnosed by the round uncus and the ovate anellus lobe. The female genitalia ( Fig. 48B View FIGURE 48 ) are distinctive as the corpus bursae contains numerous spines. It is similar to those of T. parvunca , but spines are shorter and more broadly placed on the corpus bursae in T. attenuata .

Distribution. China (Hebei, Henan, Tianjin), Japan, Korea, Russia (Primorsk Territory).

Remarks. This species is recorded from China for the first time. In Russia, it is found in coastal broadleaf forest with Quercus dentata Thunb. ( Omelko 1993) , but the larval host plant is unknown. Lee et al. (2021) mistranslated the original description for the host plant information.