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The genus Eucyclodes was originally established by Warren (1894) on the basis of Phorodesma buprestaria Guenée, 1858. Eucyclodes is a large genus, which contains more than 90 species (Scoble 1999; Scoble & Hausmann 2007), mainly distributed in the Indo-Australian tropics, and more than 50% of all species are found in New Guinea. More than 90% of all Eucyclodes species were described before the 1950s. The most recent additions were made by Inoue (1978, 1986), Holloway & Sommerer (1984), Holloway (1996), and Tautel (2016), who each erected one new species per publication. The tribal position of Eucyclodes is still uncertain, for example, Pitkin (1996), Holloway (1996) and Ban et al. (2018) placed it in the tribe Nemoriini (or Nemoriiti), and the most recent research by Murillo-Ramos et al. (2019) found that Eucyclodes is sister to other Nemoriini and the authors did not assign it to any tribe.

The genus Metaterpna is revised. The two species known, M. differens (Warren, 1909) and M. thyatiraria (Oberthür, 1913), are redescribed, with emphasis on the considerable variability of M. thyatiraria, and the status of the related type specimen was discussed. In addition, one new species, M. batangensis sp. nov., is described from Batang and Daocheng, Sichuan province, and Lijiang, Yunnan province, southwestern China. M. thyatiraria and M. batangensis show clear distance by DNA barcode sequences. Illustrations of moths and genitalia are presented.

The genus Peratophyga Warren, 1894 in China is reviewed. Six species are recognized, of which P. crista sp. nov. and P. recta sp. nov. are described. P. hyalinata grata (Butler, 1879) is restored to specific rank as P. grata (Butler, 1879) stat. rev. P. grata totifasciata Wehrli, 1923 comb. nov. is proposed. P. xanthyala (Hampson, 1896) and P. grata grata (Butler, 1879) are newly recorded for China. Two species are transferred from Peratophyga to the genus Stegania Guenée, 1845: S. castaneostriata (Yazaki & Wang, 2004) comb. nov. and S. modesta (Yazaki & Wang, 2004) comb. nov. A key to Chinese Peratophyga and diagnoses for Chinese species are provided. Illustrations of external features and genitalia are presented.

Guenée (1858) described the genus Thalassodes for T. pilaria Guenée from Loyality Island (Tahiti) and some allied species. Prout (1912) revised the genus, listing 32 taxa from the Old World, and later (Prout 1933) listed forty species and divided Thalassodes into four unnamed sections according to habitus and structure of the male legs. Holloway (1996) divided Thalasssodes into three genera using genitalic charactersa and grouped 16 species in genus Pelagodes Holloway (type species: Thalassodes aucta Prout, 1912). Scoble (1999) attributed 22 species to the genus. Later, Inoue (2003, 2005, 2006) revised collections from the Oriental region, describing ten additional species and a further distinct genus, Reniformvalva Inoue, 2006. Han and Xue (2011) added four new species to Pelagodes and found external similarities between P. clarifimbria and moths from Hainan in China, but postponed any differentiation due to limited material. Lindt, while identifying his emerald moths collected in Laos, noticed genitalic differences between brown-fronted Pelagodes specimens from Laos and Thailand, which are allopatric in Thailand. Here we present a comparative description of P. clarifimbria and a new species P. cancriformis. Institutional acronyms are as follows:. EMNH, Estonian Museum of Natural History, Tallinn, Estonia. IZBE, formerly in Institute of Zoology and Botany of the Estonian Academy of Sciences, now deposited in Estonian University of Life Sciences, Tartu, Estonia. IZCAS, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.

A total of three tribes, 38 genera and 148 species of Thyatirinae from China are listed together with one dubious record. Of these, one new species, Stenopsestis bruna sp. nov., is described. Macrothyatira danieli Werny, 1966, stat. rev., is restored to specific rank. Cymatophora subampliata Houlbert, 1921, is downgraded to subspecific rank as Tethea (Tethea) albicostata subampliata (Houlbert, 1921), stat. nov. Two genera, four species and three subspecies are recorded for the first time from China (Chiropsestis Laszlo, RonkayRonkay, 2001, Hiroshia Laszlo, RonkayRonkay, 2001, Chiropsestis rubrocinerea Laszlo, RonkayRonkay, 2001, Hiroshia albinigra Laszlo, RonkayRonkay, 2001, Parapsestis hausmanni Laszlo, Ronkay, RonkayWitt, 2007, Spica luteola Swinhoe, 1889, Parapsestis cinerea pacifica Laszlo, Ronkay, RonkayWitt, 2007, Tethea (Saronaga) consimilis aurisigna Bryk, 1943, Nothoploca nigripunctata fansipana Laszlo, RonkayRonkay, 2001). Ten misidentifications in Zhao (2004) are corrected. Illustrations of external features and genitalia of the new taxa and new records are presented.

The genus Euryobeidia Fletcher, 1979 is reviewed. Five species from China are recognized, of which, E. ellipsoidea sp. nov., E. incrassata sp. nov. and E. quadrata sp. nov. are described as new to science. Diagnoses for all the species are provided and illustrations of external features and genitalia are presented.

The genus Psyra Walker, 1860 in China is reviewed. Thirteen species are recognized, of which, P. breviprotrusa sp. nov. is described as new to science, and P. moderata Inoue, 1982, P. gracilis Yazaki, 1992 and P. boarmiata (Graeser, 1892) are recorded for the first time from China. P. cuneata szetschwana Wehrli, 1953 and P. cuneata dsagara Wehrli, 1953 are upgraded to specific level, i.e. P. szetschwana stat. nov. and P. dsagara stat. nov., and a lectotype is designated for P. dsagara. One new synonym is established: P. szetschwana Wehrli, 1953 = P. cuneata lidjangica Wehrli, 1953 syn. nov. The diagnoses for all species are given. Illustrations of external features and genitalia are presented.

The genus Luxiaria Walker and its allied genus Calletaera Warren in China, including 16 species in all, are reviewed. Five new species are described: C. obvia sp. nov., C. acuticornuta sp. nov., C. rotundicornuta sp. nov., C. dentata sp. nov., C. trigonoprocessus sp. nov. The species L. acutaria (Snellen, 1877) and L. tephrosaria (Moore, 1868) are newly recorded for China. Two new combinations are established: C. obliquata (Moore, 1888) comb. nov. and C. consimilaria (Leech, 1897) comb. nov. Four new synonyms are established: Eutoea Walker, 1860 (= Bithiodes Warren, 1894 syn. nov.); Calletaera Warren, 1895 (=Bithiodes Warren, 1899 syn. nov.), based on the fixation of nominal type Acidalia inexactata Walker, 1861, for the genus name Bithiodes Warren, 1894; L. emphatica Prout, 1925 (= L. costinota Inoue, 1978 syn. nov.); C. subexpressa (Walker, 1861) (= C. digrammata Wehrli, 1925 syn. nov.). Diagnoses for all Chinese species are provided. Illustrations of external features and genitalia are presented.

Genusa Walker, 1855, a genus currently included in the Hypochrosini, was originally established in the Lymantriidae, and transferred to the Geometridae by Hampson (1895), who designated G. bigutta Walker, 1855 as the type species, and listed G. destituta Walker, 1865, originally described from Cambodia, as a synonym of G. bigutta, though without any explanation. The only literature which compared destituta with bigutta is Swinhoe (1900), where he stated that destituta is hardly separable from G. bigutta.

A total of three tribes, 38 genera and 148 species of Thyatirinae from China are listed together with one dubious record. Of these, one new species, Stenopsestis bruna sp. nov., is described. Macrothyatira danieli Werny, 1966, stat. rev., is restored to specific rank. Cymatophora subampliata Houlbert, 1921, is downgraded to subspecific rank as Tethea (Tethea) albicostata subampliata (Houlbert, 1921), stat. nov. Two genera, four species and three subspecies are recorded for the first time from China (Chiropsestis Laszlo, Ronkay & Ronkay, 2001, Hiroshia Laszlo, Ronkay & Ronkay, 2001, Chiropsestis rubrocinerea Laszlo, Ronkay & Ronkay, 2001, Hiroshia albinigra Laszlo, Ronkay & Ronkay, 2001, Parapsestis hausmanni Laszlo, Ronkay, Ronkay & Witt, 2007, Spica luteola Swinhoe, 1889, Parapsestis cinerea pacifica Laszlo, Ronkay, Ronkay & Witt, 2007, Tethea (Saronaga) consimilis aurisigna Bryk, 1943, Nothoploca nigripunctata fansipana Laszlo, Ronkay & Ronkay, 2001). Ten misidentifications in Zhao (2004) are corrected. Illustrations of external features and genitalia of the new taxa and new records are presented.

The genus Luxiaria Walker and its allied genus Calletaera Warren in China, including 16 species in all, are reviewed. Five new species are described: C. obvia sp. nov., C. acuticornuta sp. nov., C. rotundicornuta sp. nov., C. dentata sp. nov., C. trigonoprocessus sp. nov. The species L. acutaria (Snellen, 1877) and L. tephrosaria (Moore, 1868) are newly recorded for China. Two new combinations are established: C. obliquata (Moore, 1888) comb. nov. and C. consimilaria (Leech, 1897) comb. nov. Four new synonyms are established: Eutoea Walker, 1860 (= Bithiodes Warren, 1894 syn. nov.); Calletaera Warren, 1895 (=Bithiodes Warren, 1899 syn. nov.), based on the fixation of nominal type Acidalia inexactata Walker, 1861, for the genus name Bithiodes Warren, 1894; L. emphatica Prout, 1925 (= L. costinota Inoue, 1978 syn. nov.); C. subexpressa (Walker, 1861) (= C. digrammata Wehrli, 1925 syn. nov.). Diagnoses for all Chinese species are provided. Illustrations of external features and genitalia are presented.

Genusa Walker, 1855, a genus currently included in the Hypochrosini, was originally established in the Lymantriidae, and transferred to the Geometridae by Hampson (1895), who designated G. bigutta Walker, 1855 as the type species, and listed G. destituta Walker, 1865, originally described from Cambodia, as a synonym of G. bigutta, though without any explanation. The only literature which compared destituta with bigutta is Swinhoe (1900), where he stated that destituta is hardly separable from G. bigutta.

The genus Arbomia was described as a monotypic genus by Sato & Wang, 2004, based on Arbo mia kishidai Sato & Wang, 2004 from China (Guangdong) and Vietnam. Since then, no new species of Arbomia has been described. Recently we have examined all the specimens of Arbomia in IZCAS, including those collected during recent expeditions, and have found one new species. The purpose of this paper is to describe the new species A. trigonoprocessa sp. nov., to reported Arbomia kishidai for the first time from the provinces of Zhejiang, Hunan, Fujian, and Guangxi of China, and to provide diagnostic characters and illustrations of the external features and genitalia of the two Arbomia species.

The genus Psyra Walker, 1860 in China is reviewed. Thirteen species are recognized, of which, P. breviprotrusa sp. nov. is described as new to science, and P. moderata Inoue, 1982, P. gracilis Yazaki, 1992 and P. boarmiata (Graeser, 1892) are recorded for the first time from China. P. cuneata szetschwana Wehrli, 1953 and P. cuneata dsagara Wehrli, 1953 are upgraded to specific level, i.e. P. szetschwana stat. nov. and P. dsagara stat. nov. , and a lectotype is designated for P. dsagara . One new synonym is established: P. szetschwana Wehrli, 1953 = P. cuneata lidjangica Wehrli, 1953 syn. nov. The diagnoses for all species are given. Illustrations of external features and genitalia are presented.

The subfamily Oretinae from China is revised. Three genera and thirty species are reported from China. One new species Oreta inflativalva sp. nov. is described. Fourteen new synonyms are established: Oreta obtusa dejeani Watson (= Oreta sinuata Chu & Wang, syn. nov. = Oreta asignis Chu & Wang, syn. nov.); Oreta speciosa (Bryk) (= Oreta hyalina Chu & Wang, syn. nov.); Oreta shania Watson (= Oreta bimaculata Chu & Wang, syn. nov., = Oreta cera Chu & Wang, syn. nov.); Oreta flavobrunnea Watson (= Oreta dalia Chu & Wang, syn. nov.); Oreta pavaca pavaca Moore (= Oreta zigzaga Chu & Wang, syn. nov.); Oreta pavaca sinensis Watson (= Oreta fusca Chu & Wang, syn. nov., = Oreta unichroma Chu & Wang, syn. nov., = Oreta lushansis Fang, syn. nov.); Oreta trispinuligera Chen (= Oreta ankyra Chu & Wang, syn. nov.); Oreta hoenei hoenei Watson (= Oreta trianga Chu & Wang, syn. nov.); Spectroreta hyalodisca Hampson (= Spectroreta fenestra Chu & Wang, syn. nov.); Neoreta brunhyala (Shen & Chen) comb. nov. (= Spectroreta thumba Xin & Wang, syn. nov.). The generic name Neoreta Warren, 1897 is revived for Amphitorna Turner, 1911. Four species are newly recorded for China. The female genitalia of Oreta liensis and Oreta angularis are described for the first time. Three misidentifications in Chu & Wang (1987) are corrected. Diagnoses for the subfamily, genera, and all species are provided. Illustrations of the adults and genitalia are provided.

Heinitang is a small Lisu Nationality village located in western Yunnan Province, China, near the frontier of Myanmar. It is surrounded by low mountains covered with evergreen forests and shrubs (Fig. 1). As a tradition, the natives often cut and burn the forests for agriculture, resulting in increasing loss of forest habitat (Fig. 2). The moth fauna of this place is quite diverse, but as in other areas of the world, the biodiversity is decreasing due to more frequent human activities.

The Chinese group of Thalassodes and related taxa, including four genera and eighteen species is reviewed. Four new species are described: Pelagodes paraveraria sp. nov., Pelagodes bellula sp. nov., Pelagodes simplvalvae sp. nov., Pelagodes sinuspinae sp. nov. The genus Remiformvalva , the species Remiformvalva viridicaput , Orothalassodes floccosa and Pelagodes clarifimbria are recorded for the first time from China. Descriptions and diagnoses of the genera and diagnoses for the species are provided. The female genitalia of R . viridicaput are described for the first time. Moths of all species are illustrated in colour and figures of the genitalia and the male eighth segment are provided.

The genus Ophthalmitis Oberthur in China is reviewed and four new species are described: O. dissita sp. nov., O. longiprocessa sp. nov., O. brevispina sp. nov., and O. tumefacta sp. nov. Two subspecies of O. albosignaria -- O. albosignaria juglandaria and O. albosignaria isophnia -are newly synonymized with the nominate subspecies. A key is provided to the Chinese Ophthalmitis and diagnoses for Chinese species. Illustrations of external features and genitalia are presented.

The genus Jankowskia Oberthur, 1884 is reviewed and four new species are described: J. curva sp. nov., J. acuta sp. nov., J. improjecta sp. nov., and J. obtusangula sp. nov. J. bituminaria raddensis (Wehrli, 1941) is recorded for the first time from China. A key to all species of the genus is provided. The diagnoses for all species are given. Illustrations of adults and genitalia are presented.

Chinese material of the Palearctic geometrid genus Glaucorhoe Herbulot is reassessed, with the description of two new species G. magaria sp. nov. and G. exilaria sp. nov. Illustrations of adults and genitalia of all the species are provided.