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ABSTRACT. Currently, seven species of Camponotus are known from Mongolia, with three belonging to the subgenus Camponotus and two belonging to each of the subgenera Myrmentoma and Tanaemyrmex. Two species, Camponotus (Myrmentoma) lameerei and C. (M.) quadrinotatus, are herein recorded as new to the Mongolian ant fauna. These species belong to the C. fallax group. The specimens of C. quadrinotatus from Mongolia well agreed with the Japanese specimens examined in structure, sculpture and pilosity, but had paler color pattern than in the latter. An identification key to the workers of the genus Camponotus known from Mongolia is provided. Currently, a total of 75 ant species are known from Mongolia
Currently, seven species of Camponotus are known from Mongolia, with three belonging to the subgenus Camponotus and two belonging to each of the subgenera Myrmentoma and Tanaemyrmex. Two species, Camponotus (Myrmentoma) lameerei and C. (M.) quadrinotatus, are herein recorded as new to the Mongolian ant fauna. These species belong to the C. fallax group.
In this study, we studied the body size variation of G. mopsus distributed in different biotopes of Mongolia. This study aimed to evaluate variation in morphometric linear traits of this beetle species and compare populations from the desert, desert-steppe, steppe, and forest-steppe ecosystems. In total, 523 adult beetles were collected from 9 localities in six provinces, between 2015 and 2023. Beetle numbers ranged from 30 to 110 adult beetles from each site. We measured 11 morphometric linear traits and dry weight of beetles. The measurements were as follows: body maximum length, head length, head width, distance between eyes, pronotum length, pronotum width, elytra length, elytra width, and dry weight. As a result, there were no significant differences in the linear traits between the beetles from the desert and the desert-steppe, as well as from the steppe and the forest-steppe, except distance between the eyes. However, there were significant differences in the average body sizes of beetles from each ecosystem. Also, we recorded the dry weight of beetles differ significantly between the desert, desert-steppe, and forest-steppes, but the other ecosystems showed no significant differences.
Abstract. The genus Agrypnus Eschscholtz, 1829 (Coleoptera: Elateridae) and the species A. murinus (Linnaeus, 1758) are recorded for Mongolia for the first time. This species is widely distributed in the Palaearctic, mainly in Euro-Siberian region. Two specimens of A. murinus were collected in northeastern Mongolia (Töv Province), which is probably the southeasternmost border of the species range
During their feeding process, dung beetles perform a series of ecosystem functions that provide valuable ecosystem services, such as soil fertilization, improvement of soil properties, plant growth enhancement, and biological pest control. However, in the grasslands of the Central Asian dry steppe, the effects of dung beetles on dung removal remain almost unstudied. Here, we examined dung removal by different dung beetle species (Colobterus erraticus (Linnaeus, 1758), Onthophagus bivertex Heyden, 1887, Onthophagus gibbulus (Pallas, 1781), Gymnopleurus mopsus (Pallas, 1781), Cheironitis eumenes Motschulsky, 1859, and Geotrupes koltzei Reitter, 1892), and compared the impacts with control treatments (without beetles) under natural pasture conditions and in the laboratory. We examined the influence of different variables on dung removal rates, such as dung type and dung beetle traits (nesting strategies, abundance, body size, and biomass). We found higher dung removal rates during the initial 48 h in field and laboratory conditions. Among nesting strategies, tunnellers demonstrated significantly higher dung removal rates than dweller and roller species. The highest amount of dung removal was estimated for C. eumenes (6.5 g/day by seven individuals). We found no significant relationship between dung removal rates and dung beetle body size or biomass, but we observed a strong negative correlation between dung beetle abundance and dung removal rates. Our findings highlight the importance of dung type and age, nesting strategies and abundances of dung beetles, and experimental conditions, which are the main factors driving the process of dung removal.
МОНГОЛ ОРНЫ ШОРГООЛЖНЫ СУДАЛГАА Улыкпан АЙБЕК МУИС-ийн Биологийн тэнхим aibek@num.edu.mn Монгол орны шоргоолжны ангилал зүйн талаар М.Д. Рузский (1914), В. Писарски (1962, 1969a, 1969б), Г.М. Длусский, В.Писарски (1970), В.Писарски, Л.Крзистопиак (1981) нар анхны өгүүллүүдийг нийтлүүсэн байна. Эдгээр судлаачид Монгол орноос Myrmicinae дэд овгийн 18 зүйл, Formicinae дэд овгийн 44 зүйлийг тэмдэглэжээ. М.Пфайффер нар (Pfeiffer et al., 2006) Монгол орны шоргоолжны зүйлийн бүрдлийн жагсаалтыг нэгтгэн гаргасан ба уг бүтээлд Монгол орноос 17 төрлийн 68 зүйл шоргоолжийг бүртгэн тэмдэглэжээ. Харин Б.Баяртогтох нар (Bayartogtokh et al. 2014) Монгол орны шоргоолны олон янз байдал, биогеографийн асуудлаар өгүүлэл хэвлүүсэн бөгөөд тус өгүүлэлд Монгол орноос 72 зүйлийн шоргоолжийг тэмдэглэсэн байна. Японы шоргоолж судлаач С.Яамане, МУИС-ийн Биологийн тэнхимийн багш У.Айбек нар 2001 оноос эхлэн Монгол орны шоргоолжийн зүйлийн бүрдэл, амьдрах орчин, тархалт, экологийн чиглэлээр судалгааны ажлуудыг гүйцэтгэж байна. Уг судалгааны үр дүнд Lasius fuji Radchenko, 2005; Lasius reginae, Faber 1967 зүйлүүдийн дэлхийн тархалтыг судлан ареалыг нь шинэчлэн тогтоосон байна. Түүнчлэн сүүлийн жилүүдэд Монгол орноос Camponotus төрлийн 2 зүйл, Formica төрлийн 1 зүйл, Myrmica төрлийн 1 зүйл, Harpogoxenus төрлийн 1 зүйлийг тус тус шинээр тэмдэглээд байна. Түлхүүр үг: шоргоолж, Монгол орон, Formica, Myrmica
Grassland insects face some of the most severe declines in species diversity and total abundance, in part due to agriculture. Livestock grazing is the largest agricultural land use in Mongolia that can have both positive and negative effects on insect communities. Here, we provide an assessment of rare and charismatic insects that can serve as a baseline for monitoring future population changes of selected species in the nature reserve. A total of 20 species were chosen including three species of dragonflies/damselflies (Odonata), two species of grasshoppers (Orthoptera), one species of true bug (Hemiptera), one species of lacewing (Neuroptera), nine species of beetles (Coleoptera), one species of ant (Hymenoptera), and three species of butterflies (Lepidoptera), and we discussed the future conservation issues in this nature reserve, where protection of existing habitat should be the primary goal for insect conservation.
This is the first comprehensive study based on a planned and intensive sampling eff ort that describes the community composition of insects in Khar Yamaat Nature Reserve, Mongolia. As part of ongoing research project in the reserve, we recorded 341 insect species representing 9 orders and 70 families. Coleoptera represented the most speciose order (171 spp.) followed by Lepidoptera (44 spp.) and Orthoptera (33 spp.), whereas Odonata (4 spp.) and Neuroptera (5 spp.) were the least specious. At the family level, the ground beetles (Carabidae, 43 spp.), leaf beetles (Chrysomelidae, 30 spp.), grasshoppers (Acrididae, 25 spp.), and weevil beetles (Curculionidae, 22 spp.) were the most species rich among other families. We selected six ground-dwelling beetle groups for the study of their post-fi re succession, and their activity densities among different years after the wildfire were not significantly different. The trophic guilds of selected beetles did not differ much among the years after the wildfire, and across the years, predators were more abundant than the other feeding types. The number of dominating species has fluctuated greatly in the years after the wildfire.
Data on 19 species of the bee genus Andrena Fabricius (Andrenidae) collected in Tyva Republic of Russia are presented. Of them, seven species, namely Andrena bimaculata (Kirby, 1802), A. falsifica Perkins, 1915, A. gallica Schmiedeknecht, 1883, A. ishiharai Hirashima, 1953, A. nippon Tadauchi et Hirashima, 1983, A. nitida (Müller, 1776), and A. simillima Smith, 1851 are recorded for the fauna of this region for the first time. An updated checklist of the 27 species of Andrena so far known from Tyva Republic is provided
Eight Palaearctic species of the digger wasps genus Lestiphorus are reviewed. A key to both sexes and an updated checklist of these species are given. Lestiphorus nemkovi Mokrousov et Proshchalykin, sp. n. is described and illustrated from Tyva Republic (Russia). New synonymy is proposed: Lestiphorus bilunulatus A. Costa, 1867 = Lestiphorus bilunulatus yamatonis Tsuneki, 1963, syn. n.
In Mongolia, there are 19 known social wasp species (12 spp. in Vespinae, 7 spp. in Polistinae), for some of which defi nite collection data are needed to confi rm their actual occurrence in this country. New distribution data are provided for seven vespine species and four Polistes species from Mongolia. Taxonomic comments are given to each species when necessary. New information about the nesting habits of some Dolichovespula and Polistes species is presented for the Mongolian populations. Keys to the Mongolian species of Vespinae and Polistinae are presented.
Abstract An annotated checklist of the Chrysididae from Mongolia is provided. A revision of the bibliographical data is provide, since most of the collecting localities published for “Mongolia” refer to places currently located in China. The known Mongolian cuckoo wasp fauna counts 90 species in 18 genera and two subfamilies. Four genera and 57 species are recorded for the first time, including two species here described as new for science: Cleptes mongolicus Rosa, Halada & Agnoli, sp. nov. (Dornod) and Spinolia spinosa Rosa & Halada, sp. nov. (Bayankhongor).
Diversity and conservation status of Mongolian ants Ulykpan Aibek1, Tserensambuu Ulzii2, Altangerel Baasanpurev2 1 Department of Biology, National University of Mongolia,Ulanbaatar 210646, Mongolia 2 Academy of Science, Mongolia * Corresponding author. E-mail: aibek@num.edu.mn Pfeiffer et al. (2007) listed 68 species for this country, adding six species (Formica orangea Seifert et Schultz, 2009, C. tashcumiri Tarbinsky, 1976, Lasius reginae Faber, 1967, L. fuji Radchenko, 2005 and Myrmica lobicornis Nylander, 1846) to the ant fauna of Mongolia (Aibek & Yamane 2009; Seifert & Schultz 2009; Aibek & Yamane 2010; Yamane & Aibek 2012). Aibek and Yamane (2009-2010) studied Camponotus and Lasius, reporting two subgenera of the latter new to Mongolia. On the other hand, we omitted Lasius flavus (Fabricus, 1781) and Myrmica rubra (Linnaeus, 1758) as these do not occur in Mongolia (Aibek & Yamane 2010; Wetterer & Radchenko 2011). We also removed Temnothorax serviculus (Ruzsky, 1902) from the ant fauna species list because its former subspecies is now an independent species T. mongolicus Pisarski, 1969 the nominal subspecies does not occur in Mongolia (Bayartogtokh et al., 2014). Data was collected from 280 sites covering 1800 samples, which involved more than 19000 specimens. Study shows that the ant fauna of Mongolia comprises of 72 species belonging to 17 genera in three subfamilies. The largest number of Mongolian ant species belongs to the subfamily Formicinae (39 spp.), followed by Myrmicinae (29 spp.); these two subfamilies make over 95 percent of the total ant species. A third subfamily, the Dolichoderinae is poorly represented in Mongolia with only three species. The most commonly encountered genera were Formica (19 spp.), Myrmica (14 spp.), Lasius (7 spp.), Camponotus (5 spp.) and Proformica (5 spp.). The other genera involved less than five species. Temnothorax and Tetramorium were both represented by four species, as Leptothorax, Messor and Tapinoma by two species only. Seven genera were represented by a single species, namely: Cardiocondyla, Cataglyphis, Crematogaster, Dolichoderus, Harpagoxenus, Plagiolepis and Polyergus. Keywords: Mongolia, ant fauna, specimen, subfamily Acknowledgments: Financial support provided by advanced research project P2016-1145, National University of Mongolia.
