Redescriptions of Hypogastruridae and Onychiuridae (Collembola) described by David L. Wray 

Abstract

Species of Hypogastruridae and Onychiuridae described by D. L. Wray were reexamined and redescribed where necessary from type material and other specimens. Mitchellania hermosa is redescribed and transferred to Ceratophysella. Hypogastrura ireneae is redescribed and H. gravesi is validated with additional material. Hypogastrura gami is synonymized with H. humi and H. utahensis is synonymized with H. promatro. A lectotype is designated for Schoettella (Knowltonella) idahoensis. Achorutes magnoliana is confirmed as a synonym of Schoettella glasgowi. Xenylla carolinensis is synonymized with Xenyllodes armatus Axelson (Odontellidae). Onychiurus mai is transferred to the genus Leeonychiurus and becomes L. mai, and O. magninus is transferred to Heteraphorura and becomes H. magnina. Additional details are given for Onychiurus wilchi.

Three new and one little-known species of Hypogastruridae (Collembola) from Russia’s northeast

“…Both recent descriptions (Jiang et al 2007;Jia et al 2011) considered H. yosii as being most similar to two Nearctic species, viz. H. matura (Folsom, 1916) and H. utahensis (Wray, 1953) (now a junior synonym of H. promatro (Wray, 1950) [see Bernard 2015]). This opinion was mainly based on the absence of seta p4 on Abd.4.…”

Description of Hypogastrura ellisi sp. n. with notes on H. tethyca Ellis and the trybomi group (Collembola, Hypogastruridae)

“…Presently, after the recent description of some new species (Skarżyński 2007, Jiang and Yin 2010, 2012, Jia et al 2011) and the redescription of some poorly defined ones (Bernard 2015), twelve species can be included into the trybomi group sensu Christiansen and Bellinger (1980, 1998) and Babenko et al (1994): H. analpapillata Jiang & Yin, 2012, H. hargrovei Skarżyński, 2007, H. gravesi Wray, 1971, H. heptasetata Jiang & Yin, 2010, H. hexasetata Jiang & Yin 2010, H. irenae , H. lima , H. manghe Jia, Skarżyński & Konikiewicz, 2011, H. maxillosa , H. oregonensis , H. tethyca , and H. trybomi . Another one, H. maynardi , can also be considered a potential member of this group.…”

“…H. tethyca occurs in Greece (Crete, Lesbos) and Azerbaijan; H. trybomi lives in high Arctic regions of Palearctic (from Franz Josef Land to Wrangel Island, Babenko and Fjellberg 2006); H. maxillosa is known from one location in Middle Siberia (Tomskaya oblast) (Babenko et al 1994). Four species occur in China: H. analpapillata (Yunnan Province) (Jiang and Yin 2012), H. heptasetata (Jiangsu Province) (Jiang and Yin 2010), H. hexasetata (Hubei Province) (Jiang and Yin 2010), and H. manghe (Shanxi Province) (Jia et al 2011), and four in the eastern states of the USA: H. gravesi (North Carolina) (Bernard 2015), H. hargrovei (South Carolina) (Skarżyński 2007), H. irenae (North Carolina) (Bernard 2015), and H. lima (Pennsylvania, Maryland, New York) (Christiansen and Bellinger 1998). …”

New recorded species of Heteraphorura Bagnall, 1948 (Collembola: Onychiuridae) from Georgia with a key to the Holarctic species

“…Arbea [2014] distinguished three species groups within the genus Heteraphorura based on the shape of PAO vesicles: Nearctic, Euro-asiatic and Oriental. Nowadays, there are 17 species in the genus Heteraphorura, from which 7 are distributed in Nearctic and 10 species and 1 subspecies in Palaearctic [Pomorski, 2002;Arbea, 2014;Bernard, 2015;Kaprus' et al, 2017].…”