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Wyoming Wildlife: A Natural History, Paul Johnsgard, Thomas D. Mangelsen

Zea E-Books Collection

This book surveys Wyoming’s mammal, bird, reptile, and amphibian faunas. In addition to introducing the state’s geography, geology, climate, and major ecosystems, it provides 65 biological profiles of 72 mammal species, 195 profiles of 196 birds, 9 profiles of 12 reptiles, and 6 profiles of 9 amphibians. There are also species lists of Wyoming’s 117 mammals, 445 birds, 22 reptiles, and 12 amphibians. Also included are descriptions of nearly 50 national and state properties, including parks, forests, preserves, and other public-access natural areas in Wyoming. The book includes a text of more than 150,000 words, nearly 700 references, a glossary …

A Lobed Argiope Spider On Its Most Eastern Distribution – First Record Of Argiope Lobata (Pallas, 1772) For The Sub-Family Argiopinae (Arachnida: Araneidae) In Mongolia, Oliver Lindecke, Marcus Wall

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The subfamily Argiopinae SIMON, 1890 is reported for Mongolia the first time by Argiope lobata (PALLAS, 1772). Furthermore, we herein highlight the most eastern distribution of this species, which is widespread in the Mediterranean, African and in some Asian countries. The obtained specimen was found in the Eastern Gobi, a landscape of semi-desert character. Despite numerous studies with arachnological background in the past, even larger species new for Mongolia could be found. Findings like this show the on-going need for basic biodiversity research in the Gobi ecoregions. We further discuss previous, but doubtful reports of A. lobata in South-east Asia …

Materials On Heteroptera Of Uvs-Nuur Depression (Russia, Tuva), S. V. Kuzhuget

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In this article are reported new data about spreading of 43 species of heteropterans of 10 families of the Tuvinian Uvs-Nuur depression.

Morphological Variation Of Mesobuthus Eupeus Mongolicus (Birula, 1911) (Scorpiones: Buthidae) In Mongolia, Mike Heddergott, D. Pohl, Michael Stubbe, Annegret Stubbe, P. Steinbach

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In the present study, we investigated morphological variation of Mesobuthus eupeus mongolicus (Birula, 1911) in Mongolia. Samples were collected in 16 sites located in the provinces Bayankhongor, Khovd, Dundgovi, Dornogovi, Govisümber and Ömnögovi. Statistical analyses (Kruska-Wallis one-way ANOVA, PCA and hierarchical cluster analysis) showed that (a) morphologically the M. e. mongolicus males sampled in Dundgovi, Dornogovi, Govisümber and Ömnögovi were similar to each other, while the populations of Bayankhongor and Khovd were differentiated, and (b) the females from Bayankhongor, Dundgovi, Dornogovi, Govisümber and Ömnögovi had a similar morphology, while the population from Khovd was differentiated.

Geographical Distribution Of The Genus Mesobuthus (Scorpiones: Buthidae) In Mongolia, Mike Heddergott, Michael Stubbe, W. Stubbe, P. Steinbach, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In the present study, we surveyed the diversity of scorpions in six provinces of Mongolia (Bayankhongor, Khovd, Dundgovi, Dornogovi, Govisümber and Ömnögovi) between 2001 and 2012. A total of 385 individuals were collected at 17 different sites. In addition to opportunistic sampling, animals were collected after detection with ultraviolet light. Only species from the genus Mesobuthus have been reported from Mongolia thus far. It was possible to confirm the occurrence of the species Mesobuthus eupeus mongolicus and report the presence of M. martensii martensii for the first time. We could not confirm the presence of M. caucasicus przewalskii and suggest …

Vorläufige Checkliste Der Laufkäfer (Coleoptera: Carabidae) Der Mongolei 3. Beitrag Zur Carabidenfauna Der Mongolei, Peer Schnitter

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Four hundred fifty-one species and subspecies of ground beetles were reported for Mongolia. Twenty-nine species are new for the fauna: Calosoma sycophanta (LINNAEUS, 1758), Carabus (Coptolabrus) schrencki MOTSCHULSKY, 1860 ? ssp., Elaphrus (Elaphroterus) punctatus MOTSCHULSKY, 1844, Dyschiriodes marani KULT, 1949, Dyschiriodes pusillus (DEJEAN, 1815), Broscus ? semistriatus DEJEAN, 1828, Bembidion (Asioperyphus) pamiricola LUTSHNIK, 1930, Bembidion (Asioperyphus) pseudoinfuscatum REBL i. litt, Bembidion (Hirmoplataphus) hirmocaelum CHAUDOIR, 1850, Bembidion (Peryphodes) amurense (MOTSCHULSKY, 1859), Bembidion (Peryphus) insidiosum holdhausi FASSATI, 1952, Bembidion (Peryphus) petrosum GEBLER, 1833, Bembidion (Plataphus …

Register Of Chironomids (Diptera, Chironomidae) Of The Lake Khubsugul In Mongolia, E. A. Erbaeva, G. P. Safronov

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This list presents 107 species and forms of Chironomidae larvae from the lake Khubsugul, which belonging to 5 subfamilies of Chironomidae: Tanypodinae (11 species), Diamesinae (7), Prodiamesinae (1), Orthocladiinae (48), Chironomiinae (40).

Acclimatization Of Coregonus Autumnalis Migratorius (Georgi, 1775) In Some Water Bodies Of The Mongolian Gobi, Auyriin Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Introductions and subsequent acclimatization of the fish Baicalian omul (Coregonus autumnalis migratorius natio possolskii) was carried out in 1980, 1982, and 1986 in the previously fishless lakes of Ulaagchnii Khar, Baga, and Jaahan located in the territory of Gobi region of the Zavhan administrative aimag of Mongolia. Three million larvae of Coregonus autumnalis migratorius natio possolskii were received from the Bolshrechnsky fishery in Buryatya, Russia (DULMAA 1999). The density of distribution was 10-15 thousand units per hectare with an average larvae mass of 0.05 g. The relatively abundant fodder base has facilitated the high rate of growth and …

How Could Unmanned Aerial Systems (Uas) Be Used For Ecohydrological And Ecosystem Research? Experiences Of First Operations With Uas In River Flood Plains Of Northern Mongolia, Jürgen Hofmann, Martin Oczipka, Thomas Rutz, Hauke Dämpfling

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This paper proposes the use of unmanned aerial systems (UAS) as a method for monitoring biotic resources and ecohydrological systems in river floodplains.

Small scale mapping based on LANDSAT and SRTM or ASTER data is of limited applicability since a spatial resolution of 30 to 90 m is not sufficient to meet the demands of habitat mapping and large scale 3D -modelling. Newer satellites like WorldView2 and SENTINEL (space mission from European Space Agency within the Copernicus Programme) could be an option to gain a 0.5 m resolution, but the availability of image data is limited.

UAS allow the collection …

Conflicts Between Human And Wildlife In Baytik Mountain, China, Wenxuan Xu, Weikang Yang, Canjun Xia, Xingyi Gao

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Baytik Mountain was a traditional pasture used by nomads, divided into summer pasture, winter pasture and transitional pasture, and most of their livestock were goat and sheep. Many rare and endangered animals occur in this region, including snow leopard, lynx, Mongolian wild ass, ibex and argali. There have long history of conflicts between human and wildlife. Minority nationalities (Uighur, Kazakh, and Mongols, etc.) in China do not have a one child policy. As a result, many families have become quite large because of improvements in living standards, medical care, and living conditions. In addition, these living conditions force the local …

Current Status And Conservation Of Mountain Ungulates In Mongolia, Badamjav Lkhagvasuren, Yansanjav Adiya, Garam Tsogtjargal, Garam Amgalanbaatar, Rich Harris

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In November 2009, we conducted a countrywide survey for wild sheep or argali and Siberian ibex. Field survey teams sampled in total 134 argali distribution units within Mongolia, which are estimated to occupy approximately 46,603 km² of the whole area of 60,237 km² that been previously mapped as populated by argali. They observed 385 groups of argali, totaling 3.373 individuals. Our point estimate of argali is 18,140 with a lower 95% confidence limit of 9,193 and an upper 95% confidence limit of 43,135.

At the same time the authors observed 162 groups of ibex, totaling 2,541 individuals and our point …

Offspring Survival In The Demoiselle Crane Grus Virgo In Mongolia, Ueli Rehsteiner

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The breeding performance of nine breeding pairs of the Demoiselle crane Grus virgo has been investigated in Takhin Tal, Mongolia, in order to get information about their breeding density as well as the survival rate of the juveniles. To this end, the nests and the offspring have been monitored from hatching up to the age of about two months in order to get information about their survival rate. All pairs settled within a distance of about 2 km to the only river in the area, resulting in a density of about 0.6 couples per km. The number of surviving juveniles …

Investigation Of Bats In The Darkhad Wetlands, Jargalsaikhan Ariunbold

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The Darkhadyn Khotgor wetlands are located in the northern part of Mongolia and are transected by both small and large rivers such as the Shishged and the Tengis. Many small lakes are present and the large lake ‘Tsagaan nuur’ (English: White lake) is upstream of the Yenisei river. It is a land rich in biodiversity with pristine waters and an extreme continental climate. The Darkhadyn Khotgor wetlands are composed of three ecological zones, Siberian Taiga, forested steppe, and meadow valley. The area is surrounded by Ulaan Taiga strictly protected area (SPA) in the western part, Khoridol Saridag Mountains SPA in …

Erster Brutnachweis Für Den Bienenfresser (Merops Apiaster L., 1758) In Der Mongolei = First Breeding Record For The Bee-Eater (Merops Apiaster L., 1758) In Mongolia, Michael Stubbe, Davaa Lkhagvasuren, L. Kratzsch, H.-J. Döhle, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First breeding record of Merops apiaster was observed for Mongolia in August 2014. Breeding locality was a little oasis eastern of Šarga-Sum in the Šargyn-gobi, Aimak Gobi-Altai, about 600 km eastern, far from the known area of the species in northwest China.

New Data On Feeding Ecology Of Bubo Bubo And Asio Otus (Aves: Strigidae) In Mongolia, Michael Stubbe, Nayamsuren Batsaikhan, Oliver Lindecke, Ravčigijn Samjaa, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

New materials of 10 Eagle owl Bubo bubo localities from Mongolia were analyzed. The feeding ecology of Long-eared owl Asio otus was studied by the investigation of pellets from 4 roosting or nesting places in S-Mongolia. All together in the prey of Bubo bubo were analyzed 1098 vertebrates (1017 mammals, 39 birds, 41 reptiles, 1 fish), involving about 22 mammal species. The pellets were dominantly those of Lagomorpha with 23.3% in SW-Mongolia, Dipodidae in W-, SW- and S-Mongolia (37.3%, 23.4%, 30.2%), Cricetidae in SW- and S-Mongolia (13.6%, 17.6%), Gerbillidae in W- and S-Mongolia (19%, 32.1%) and Arvicolidae in W- and …

Zur Erinnerung An Den Mongolischen Säugetierforscher Namshil Chotolchuu (1935-1990) – Im Gedenken An Die Wiederkehr Seines 80. Geburtstages 2015, Michael Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Namshil Chotolchuu wurde am 20.01.1935 in Ulaanbaatar geboren. Sein Vater war in den 60er und 70er Jahren ein bekannter Schachmeister der Mongolei. Mit Chotolchuu verbinden uns sehr erfolgreiche und prägende gemeinsame Mongolisch-Deutsche Biologische Expeditionen und daraus resultierende Publikationen sowie eine lange Freundschaft.

Mit diesem Nachruf wollen wir an ein langes Kapitel der deutsch-mongolischen Zusammenarbeit mit Kollegen der Mongolischen Akademie der Wissenschaften und an einen Pionier der eigenständigen mongolischen Säugetierforschung erinnern, der in der internationalen Kooperation, im Team der Mongolisch-Deutschen Biologischen Expeditionen und im Schrifttum sowie ganz persönlich unvergessen bleibt.

New Data On Small Mammals Of Neolithic Sites And Burial Grounds In Mongolia, Fedora Khenzykhenova, Nataly Schepina, Dashzeveg Tumen, Myagmar Erdene, Nataly Tsydenova, D. Khatanbaatar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

New data about animals obtained by Mongolian paleoanthropologists, National University of Mongolia and Russian archaeologist, Institute of Mongolian, Buddist and Tibetan studies, Siberian Branch, Russian Academy of Sciences were obtained under the direction of Professors Dashzeveg Tumen and Myagmar Erdene. The faunistic materials were excavated from localities of different origins including burial grounds, old cities, and Neolithic sites in different areas of Mongolia. Species composition of the large mammal fauna included two species and, the small mammal fauna was represented by two species of lagomorphs, and six species of rodents which are also components of the recent fauna of Mongolia.

A Revised Checklist Of Mongolian Mammal Species, V. S. Lebedev, A. A. Bannikova, Ya. Adiya, S. Shar, A. V. Surov

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

A revised annotated checklist of Mongolian mammals is presented, supplemented with comments on modifications in species- and genus-level taxonomy introduced over the last 30 years. The checklist includes 140 species compared to 124 species recognized three decades ago by SOKOLOV & ORLOV (1980). Since then, four species were newly described; seven species were registered for the first time on Mongolian territory. Names for more than 20 taxa have changed, on most occasions this change occurred not for purely nomenclatural reasons but rather as a result of taxonomic revisions at the species level which have elevated the rank of many nominal …

Historische Und Aktuelle Daten Zum Wolf In Der Mongolei, D. Eregdenedagva, Ravčigijn Samjaa, Michael Stubbe, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Zusammenfassung Die Mongolei beherbergt trotz intensiver Verfolgung einen der besten Wolfsbestände Eurasiens. Der Wolf kommt als wertvoller Großsäuger in allen Vegetationszonen der Mongolei vor. Bereits zahlreiche Steinzeichnungen künden von Mensch-, Haus- und Wildtierkonflikten mit dem wehrhaften Beutegreifer Wolf. Er ist und bleibt ein Konkurrent des Nomaden und andererseits ein wertvoller Pelzlieferant und Regulator in den Nahrungsnetzen. Die geringe menschliche Besiedlung und die in freier Weidewirtschaft gehaltenen Haustiere sowie eine reiche Fauna an kleinen und großen Wildsäugetieren bereiten der Wolfspopulation optimale nahrungsökologische Bedingungen. Seit geraumer Zeit hat die Haustierhaltung die 50 Millionengrenze überschritten. Der ökonomische Schaden des Wolfes in der Viehwirtschaft …

Polyzonus Fasciatus (Fabricius, 1781) (Coleoptera: Cerambycidae) - Ein Artporträt, Volker Neumann, Davaa Lkhagvasuren

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This paper focuses on the distribution of Polyzonus fasciatus (Coleoptera, Cerambycidae) in Mongolia and describes biological aspects of its development.

Identification Of Taenia Metacestodes From Mongolian Mammals Using Multivariate Morphometrics Of The Rostellar Hooks, Danielle M. Tufts, Nyamsuren Batsaikhan, Michael Pitner, Gábor R. Rácz, Altangerel Tsogtsaikhan Dursahinhan, Scott Lyell Gardner

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Parasite diversity in and among various species of mammals within Mongolia is still poorly understood. The current paper focusses on a small part of the results of the Mongolian Vertebrate Parasite Project (MVPP), which entailed a broad-scale biodiversity survey of the vertebrates and their parasites of the Gobi and Altai regions of Mongolia. We report on the prevalence and morphological variation of larval cestodes of the family Taeniidae that occurred in small mammals that were collected from 2009-2012 from various locations in southern Mongolia. From these metacestodes, we studied both large and small rostellar hooks and analyzed both size and …

Bat Ectoparasites Of Mongolia, Part 3, Ingo Scheffler, Ariunbold Jargalsaikhan, Idertsogt Bolorchimeg, Annegret Stubbe, Michael Stubbe, Andreas Abraham, K. Thiele

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The fauna of Mongolian bats and their ectoparasites is not yet fully documented. This study analyzes ectoparasite samples of 15 bat species from diverse taiga, steppe, and desert locations. We recorded 27 parasite species in total and report their abundance, host preference, and occurrence herein. In describing a new bat fly species (Basilia dolchii n. spec.), reporting six parasite species never before recorded in Mongolia, and examining rare host species such as Myotis frater and Murina hilgendorfi, this work expands present knowledge in this research area. To assess respective individual and species-specific parasite loads comprised of different insects …

Key To The Bat Fleas Of Mongolia, Ingo Scheffler

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Fleas of the family Ischnopsyllidae belong to the common bat ectoparasites. The current taxonomic status of these insects in Mongolia includes seven species for which we provide a determination key.

Der Mönchsgeier Aegypius Monachus (L., 1766) Und Seine Mallophagen (Insecta, Phthiraptera) In Der Mongolei = Cinereous Vulture Aegypius Monachus (L., 1766) And Its Chewing Lice (Insecta, Phthiraptera) In Mongolia, Eberhard Mey, Michael Stubbe, Davaa Lchagvasuren, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

During a series of studies on the population, ecology, and biology of the Cinereous Vulture in Mongolia, fully feathered nestlings of the species from 9 nests were examined, without the use of chemical methods, for Mallophaga infestation from 2010 to 2015. The collection resulted in several first records for Mongolia of three species: Laemobothrion vulturis (J. C. FABRICIUS, 1775) sensu lato (Amblycera, Laemobothriidae), Neocolpocephalum aegypii (TENDEIRO, 1989) (Amblycera, Menoponidae s. l.) sp. inq., and Falcolipeurus quadripustulatus (BURMEISTER, 1838) (Ischnocera, Philopteridae s. l.). Despite being expected, there has still been no record of Agypoecus brevicollis (BURMEISTER, 1838) in Mongolia.

Chewing louse …

Index-Based Insurance And Risk Management Among Nomadic Mongolian Herders , Kelsey Larson

Independent Study Project (ISP) Collection

Mongolian herders must contend with the risk of dzuds, harsh winters that can kill large numbers of livestock. To do so, they use a mixture of formal financial tools and traditional risk mitigation techniques. This paper is a study of the interaction between the Mongolian Index-based Livestock Insurance Program and traditional informal risk mitigation techniques. The researcher interviews herders in Bulgan soum, Arhangai aimag and Galuut soum, Bayanhongor aimag to compare the IBLI program’s impact in a community that has had IBLI since 2006 and one that only received IBLI in 2012. This study finds that insurance purchase is positively …

Herpetological Diversity Of Mongolia And Its Conservation Issues, Khorloo Munkhbayar, M, Munkhbaatar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

From the viewpoint of evolution, the classes of amphibians and reptiles could be considered as relicts, and because they are poikilothermic animals, it’s very difficult for these species to live under the dry and cold climatic conditions in Mongolia. Even species diversity is poor, Mongolian herpetological composition is unique, highly adopted to the country’s harsh climate and originated a long time ago.

In Mongolia, six species of amphibians belong to four genera, four families and two orders and the recorded 21 species of reptiles belong to 13 genera in six families of two suborders.

“Agrionemys Kazachstanica Terbishi” Or The Two-Faced Mongolian Steppe Tortoise, Hermann Ansorge, Uwe Fritz, Khayankhyarvaa Terbish, Setev Shar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Although no extant native turtle and tortoise species is known to occur in Mongolia, a new subspecies of the Central Asian tortoise was described by Chkhikvadze under the name Agrionemys kazachstanica terbishi in 2009. The description was based on a mummified tortoise kept in a museum collection. Since then the Mongolian steppe tortoise has been considered as an endemic taxon Testudo horsfieldii terbishi (Chkhikvadze, 2009) for Mongolia.

However, there is no evidence for the occurrence of any wild tortoise species in Mongolia, even in the putative area of origin of the type specimen. The closest confirmed occurrence of Central Asian …

Diversity And Distribution Of Mongolian Fish: Recent State, Trends And Studies, Yuri Dgebuadze, Bud Mendsaikhan, Ayurin Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The studies in recent years (2000-2011) have allowed to make more precise the list and ranges of Mongolian fish. This is connected with new findings as well as the continuing process of invasion of alien species. Climate change and increase of human impact transformed ranges and local distribution of fish during last 30 years. Bias on ratio of ecological guilds, number of pathological findings are increasing, and declining of local diversity, rate of growth and fecundity of many species of fish are observed. In the course of long-term observation was confirmed periodically drying of waters of the Central Asian Lake …

New Data On The Fish Coregonus Peled (Gmelin, 1788) In Some Water Bodies Of Mongolia, Ayuriin Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In connection with the planned establishment of a coregonid fishery and the construction of a specialized hatchery in the area of Western Mongolia a study was undertaken with the aim of studying some parts of the reproductive biology of population of Coregonus peled inhabiting the lake Ulaagchnii Khar (Zavhan aimag). This species was introduced into this Mongolian lake, originally lacking any fish stock, in the period from 1980–1982. 11,230 fish were collected and examined during the periods from 1993–1999 and 2005–2011 and consisted partly of the fish originating from imported and introduced larvae and partly of the individuals belonging about …

Some Taxonomic Records Of Aquatic Insects In The Eroo River Basin (West Khentii, Northern Mongolia), Purevdorj Surenkhorloo, Ravchig Samiya, Jolanta Slowik, Michael Mühlenberg

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In the Eroo basin of Mongolia, many species of aquatic insects have been recorded including five species of Diptera in the families Psychodidae, Dixidae, and Blephaceridae and 25 species across eight families of stoneflies. One species of Psychodidae, Bazarella baikalensis Wagner is reported for the first time in Mongolia while the other families are discussed and a species list is provided for the country.