Taxonomic study of Thiotricha Meyrick (Lepidoptera, Gelechiidae) in Japan, with the description of two new species

Khine Mon Mon Kyaw; Sadahisa Yagi; Jouhei Oku; Yositaka Sakamaki; Toshiya Hirowatari

doi:10.3897/zookeys.897.38529

Taxonomic study of Thiotricha Meyrick (Lepidoptera, Gelechiidae) in Japan, with the description of two new species

Zookeys. 2019 Dec 9:897:67-99. doi: 10.3897/zookeys.897.38529. eCollection 2019.

Authors

Khine Mon Mon Kyaw¹, Sadahisa Yagi¹, Jouhei Oku¹, Yositaka Sakamaki², Toshiya Hirowatari³

Affiliations

¹ Entomological Laboratory, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
² Entomological Laboratory, Graduate School of Agriculture, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan.
³ Entomological Laboratory, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.

Abstract

A part of Japanese species of the genus Thiotricha Meyrick, 1886 are reviewed. Three species described by Omelko (1984) in the genus Cnaphostola Meyrick, 1918 are placed in combination with Thiotricha; Thiotricha biformis, T. angustella comb. nov. and T. venustalis comb. nov. These species are redescribed, and two new species, T. elaeocarpiella Kyaw, Yagi & Hirowatari, sp. nov. and T. flavitermina Kyaw, Yagi & Hirowatari, sp. nov. are described based on external morphological characters of adults and genitalia of males and females. Thiotricha chujaensis (Park, 2016), comb. nov. described in Cnaphostola from Korea, is newly recorded in Japan feeding on Mallotus japonica (Euphorbiaceae). One of the new species, T. elaeocarpiella sp. nov. has been associated with two different plants, Elaeocarpus zollingeri (Elaeocarpaceae) and Rhaphiolepis indica (Rosaceae). This paper presents the ﬁrst comprehensive description of the morphology, pupal morphology and biology of species previously treated in the genus Cnaphostola and their relatives in Japan.

Keywords: distribution; host plants; morphology; new species; portable case; pupa; taxonomy.

Khine Mon Mon Kyaw, Sadahisa Yagi, Jouhei Oku, Yositaka Sakamaki, Toshiya Hirowatari.