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The genus Pylaemenes Stål, 1875 (Phasmatodea: Heteropterygidae: Dataminae) of East Asia with descriptions of two new species

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Ho, G.W.C. 2016. The genus Pylaemenes Stål, 1875 (Phasmatodea: Heteropterygidae: Dataminae) of East Asia with descriptions of two new species. Tettigonia: Memoirs of the Orthopterological Society of Japan, 11: 1–14.

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... They seemed to be exclusively nocturnal and appeared to feed on a variety of plant species with a preference for Araceae. (Ho, 2016) comb. nov. ...
... (1) The specimens attributed to O. mouhotii by SHIRAKI (1935) from Japan and Taiwan have been described as two distinct species, respectively Pylaemenes japonicus Ho, 2016and P. shirakii Ho & Brock, 2013(HO, 2016HO & BROCK, 2013). ...
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Six new species of the genus Orestes Redtenbacher, 1906, O. bachmaensis sp. nov., O. botot sp. nov., O. diabolicus sp. nov., O. dittmari sp. nov., O. draegeri sp. nov. and O. krijnsi sp. nov. are described and figured from Vietnam. Descriptions are based on both sexes, except for O. diabolicus sp. nov., of which only the male is known. The type species O. mouhotii (Bates, 1865) is redescribed and its distribution range is extended. Dares (Dares) subcylindricus Redtenbacher, 1906 is removed from the synonymy with Orestes mouhotii (Bates,1865), transferred to Orestes and redescribed from both sexes and eggs. The new combination Orestes subcylindricus Redtenbacher, 1906 stat. rev., comb. nov. is proposed. The generic description of Orestes is slightly improved and the delimitation from Pylaemenes Stål, 1875 is precised. A plate of the type species of Pylaemenes, P. coronatus (Haan, 1842) is presented for comparison. Pylaemenes guangxiensis Bi & Li, 1994, P. japonicus Ho, 2016 and P. shirakii Ho & Brock, 2013 are transferred to Orestes and the new combinations O. guangxiensis (Bi & Li, 1994) comb. nov., O. japonicus (Ho, 2016) comb. nov. and O. shirakii (Ho & Brock, 2013) comb. nov. are proposed. The cephalic armature is discussed and figured. A key to the species of Orestes from Vietnam and Cambodia is presented with accompanying plates, as well as a distribution map and live in nature pictures.
... The genus Pylaemenes Stål, 1875 belongs to the tribe Datamini in the subfamily Dataminae of the family Heteropterygidae (Bank et al. 2021, Brock et al. 2022. Pylaemenes consists of 20 valid taxa and is distributed in the following areas: Vietnam (3 spp.), Indonesia (7 spp.), Malaysia and Singapore (both Peninsular Malaysia and Borneo) (8 spp.), Thailand (1 sp.), and China (1 sp.) (Ho 2013, 2016, Seow-Chone 2017a, b, 2018, 2020, Bresseel and Jiaranaisakul 2021, Hennemann 2021, Brock et al. 2022). This genus can be separated from the most related Orestes Redtenbacher, 1906 by a combination of the following characteristics: meso-and metanotum flattened or slightly tectiform and with distinctly raised median carina and lateral carinae (the thickened lateral edges of meso-and metanotum) and the conically elevated back of the head Constant 2018, Bresseel andJiaranaisakul 2021). ...
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Pylaemenes gulinqingensis sp. nov., from Gulinqing Nature Reserve, Maguan County, Yunnan, China, is described for the first time from two females and six eggs. The types of the new species are deposited in Southwest Forestry University (SWFU), China, as well as in the first author's collection.
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The new species Pylaemenes scrupeus sp. nov. from Ratchaburi province, Thailand is described and illustrated based on both sexes and the egg. The new species is diagnosed and differentiated from closely related species. The constitution of Pylaemenes Stål, 1875 and the problems arising with generic attribution of species, considering recent phylogenetic studies, are discussed. The genus is for the first time recorded from Thailand and pictures of living specimens and the habitat as well as a distribution map of continental Pylaemenes species are provided. Dares ziegleri Zompro & Fritzsche, 1999 is transferred to Orestes Redtenbacher, 1906 leaving the genus Dares Stål, 1875 restricted to Borneo and Palawan.
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The genus Microrestes gen. nov. is erected to accommodate the new species Microrestes robustus sp. nov. from North Vietnam. Pylaemenes trapezius Ho, 2016 from southern China is transferred to Microrestes and the new combination M. trapezius (Ho, 2016) comb. nov. is proposed. A third species of Microrestes is recorded from northern Thailand based on photographs. The genus is compared with the other genera of Dataminae. Microrestes robustus sp. nov., the type species, is described and figured from both sexes and the egg. The genus is recorded from Vietnam, China and Thailand. A key and distribution map are provided for its species. A standardized nomenclature of the cephalic armature for Microrestes gen. nov. is proposed.
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