Himantariidae Bollman, 1893 (Chilopoda: Geophilomorpha), a new family for the Mongolian fauna

Polyporogaster porosa (Sseliwanoff, 1881), genus Polyporogaster Verhoeff, 1899, as well as family Himantariidae Bollman, 1893 are reported for the first time for the fauna of Mongolia.

The study of the material from western Mongolia (Dyachkov 2017(Dyachkov , 2018Farzalieva et al. 2017) also revealed specimens of Polyporogaster porosa (Sseliwanoff, 1881). To date, himantariids have never been reported from this region. Family Himantariidae is spread mostly from Macaronesia through the Mediterranean region and Middle Asia to India, known also from the Korean Peninsula and Japan, as well as from western part of N America to central Mexico (Bonato 2011).

Material and Methods
The material was collected by A.A. Fomichev and R.V. Yakovlev in 2015 ( Fig. 1) and deposited in the Zoological Museum of Lomonosov Moscow State University (ZMMU). Data on the type locality are given according to original sources; additional information is provided in square brackets. The distribution map was generated using SimpleMappr software (Shorthouse 2010).
Geographical note. The territory spreading from Caspian Sea to China eastwards, and from Aral Sea-Alakol Lake to Northern Iran and Afghanistan, has been referred to as Middle Asia in Russian scientific literature since 20th century. Presently, this territory includes mostly the following countries: Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, and partly Kazakhstan. The use of Middle Asia to refer to these countries eliminates ambiguity between names Central Asia and Middle Asia (Jashenko et Zyuzin 2000;Rachkovskaya et Khramtsov 2003;Cowan 2007).
Remarks. Western Mongolia is the easternmost range limit of P. porosa. This species has never been encountered above 1300 m (Dyachkov 2020a).
The Barun-Khuray Hollow was mentioned by R.V. Yakovlev (2012) as a unique place with desert elements of Middle Asian origin in the fauna of Lepidoptera.

Acknowledgments
I am grateful to colleagues who loaned material for the study: A.A. Fomichev and R.V. Yakovlev (Barnaul, Russia). I wish to thank M.A. Iuzhakova (Tomsk, Russia) who kindly checked the English of an advanced draft. I am grateful to a reviewers for critical commenting of the manuscript. The research was carried out as a part of the Program for the Support of Scientific and Pedagogical Stuff of the Altai State University, the project "Biodiversity of dominant predatory arthropods of the Great Caucasus: spiders (Arachnida: Aranei) and centipedes (Myriapoda: Chilopoda)".