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ISSN 0013-8738, Entomological Review, 2013, Vol. 93, No. 7, pp. 844–845. © Pleiades Publishing, Inc., 2013. Original Russian Text © A.S. Kaverzina, 2013, published in Entomologicheskoe Obozrenie, 2013, Vol. 92, No. 1, pp. 120–122. 844 The First Record of the Antlion Mesonemurus mongolicus Hölzel, 1970 (Neuroptera, Myrmeleontidae) in the Republic of Buryatia A. S. Kaverzina Siberian Institute of Physiology and Biochemistry of Plants, Siberian Branch, Russian Academy of Sciences, Irkutsk e-mail: [email protected] Received November 20, 2012 Abstract—The antlion Mesonemurus mongolicus Hölzel, 1970 is described for the first time for the Republic of Buryatia, where it occurs in drift sands. All the specimens were identified based on a single feature persistent in both sexes in the known populations of M. mongolicus, the presence of a wide brown spot between the antennae, which is not known in any other congener. DOI: 10.1134/S0013873813070063 Four antlion genera comprising 8 species were previously recorded from southern Buryatia: Deu- toleon Navás (1 species with 2 subspecies), Myrme- leon Linnaeus (3 species), Euroleon Esben-Petersen (2 species), and Nohoveus Navás (2 species) (Ple- shanov, 1974; Makarkin, 1987; Krivokhatsky, 2011). Examination of the material deposited in the Siberian Institute of Physiology and Biochemistry of Plants, the Siberian Branch of the Russian Academy of Sciences, and those collected by the author and by A.F. Medvedev (Moscow State University) in 2012 from the Selenga River valley in Buryatia has allowed supplementing the list of antlions of the re- gion with one more species of the genus Mesonemurus Navás. Mesonemurus mongolicus Hölzel, 1970 Material. Buryatia: Ivolginskii District, right bank of Selenga River opposite Kibalino Vill., 51°24'43.6"N, 107°2'0.5"E, 540 m, steppe, 27.VII.2012 (A.S. Kaverzina), 2 ; Selenginskii Dis- trict, Povorot Vill., drift sands with elm, 24.VI.1990 (A.S. Pleshanov), 3 , 2 , 3 specimens (without ab- domen); right bank of Selenga River opposite Dzhida Vill., 50°39'42.4"N, 106°16'40.0"E, 588 m, collected along sandy slope with sparse grasses, 25.VII.2012 (A.S. Kaverzina), 2 , 2 ; Kyakhtinskii District, Ust- Kyakhta Vill., at night, 25–26.VII.2012 (A.F. Medve- dev), 2 ; Ust-Kiran Vill., 23.VII.2012 (A.F. Medve- dev), 1 . Mesonemurus mongolicus is a Central Asian extra- continental species known earlier in Russia only from four localities in Tuva (Krivokhatsky, 2011). All the adults were collected by the author from steppe vege- tative communities on areas with drift sands. Three out of four records of this species in Tuva were also made from areas with large massifs of barchan sands. Simi- lar habitats also occur in the Baikal Region further north where this species may be distributed. Adults of this species were found neither on bare sandy dunes nor on grass-covered soils. These insects occur to- gether with the antlion Nohoveus atrifrons Hölzel, 1970 and are very cautious. Larvae of M. mongolicus are not known. Mesonemurus mongolicus can be attributed to the most xerophilous part of the Dauro-Mongolian zo- ogeographical complex, which comprises the desert- steppe species occurring most northwards in Tuva and southern Dauria where the deserted Central-Asian Subprovince extends into Southern Siberia (Grubov, 1959). This complex also includes a number of leaf- beetles (Medvedev and Korotyaev, 1975). In many localities of Mongolia, M. mongolicus is accompanied with M. guentheri Hölzel, 1970 which was described (Hölzel, 1970a, 1970b, 1987; Krivo- khatsky et al., 1996) from Z. Kaszab’s collections including both these species. Examination of the serial material has shown an extreme variability of some diagnostic characters of the structure of the genitalia

The first record of the antlionMesonemurus mongolicusHölzel, 1970 (Neuroptera, Myrmeleontidae) in the Republic of Buryatia

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Page 1: The first record of the antlionMesonemurus mongolicusHölzel, 1970 (Neuroptera, Myrmeleontidae) in the Republic of Buryatia

ISSN 0013-8738, Entomological Review, 2013, Vol. 93, No. 7, pp. 844–845. © Pleiades Publishing, Inc., 2013. Original Russian Text © A.S. Kaverzina, 2013, published in Entomologicheskoe Obozrenie, 2013, Vol. 92, No. 1, pp. 120–122.

844

The First Record of the Antlion Mesonemurus mongolicus Hölzel, 1970 (Neuroptera, Myrmeleontidae)

in the Republic of Buryatia

A. S. Kaverzina Siberian Institute of Physiology and Biochemistry of Plants, Siberian Branch, Russian Academy of Sciences, Irkutsk

e-mail: [email protected]

Received November 20, 2012

Abstract—The antlion Mesonemurus mongolicus Hölzel, 1970 is described for the first time for the Republic of Buryatia, where it occurs in drift sands. All the specimens were identified based on a single feature persistent in both sexes in the known populations of M. mongolicus, the presence of a wide brown spot between the antennae, which is not known in any other congener.

DOI: 10.1134/S0013873813070063

Four antlion genera comprising 8 species were previously recorded from southern Buryatia: Deu-toleon Navás (1 species with 2 subspecies), Myrme-leon Linnaeus (3 species), Euroleon Esben-Petersen (2 species), and Nohoveus Navás (2 species) (Ple-shanov, 1974; Makarkin, 1987; Krivokhatsky, 2011). Examination of the material deposited in the Siberian Institute of Physiology and Biochemistry of Plants, the Siberian Branch of the Russian Academy of Sciences, and those collected by the author and by A.F. Medvedev (Moscow State University) in 2012 from the Selenga River valley in Buryatia has allowed supplementing the list of antlions of the re-gion with one more species of the genus Mesonemurus Navás.

Mesonemurus mongolicus Hölzel, 1970

Material. Buryatia: Ivolginskii District, right bank of Selenga River opposite Kibalino Vill., 51°24'43.6"N, 107°2'0.5"E, 540 m, steppe, 27.VII.2012 (A.S. Kaverzina), 2 ♀; Selenginskii Dis-trict, Povorot Vill., drift sands with elm, 24.VI.1990 (A.S. Pleshanov), 3 ♂, 2 ♀, 3 specimens (without ab-domen); right bank of Selenga River opposite Dzhida Vill., 50°39'42.4"N, 106°16'40.0"E, 588 m, collected along sandy slope with sparse grasses, 25.VII.2012 (A.S. Kaverzina), 2 ♂, 2 ♀; Kyakhtinskii District, Ust-Kyakhta Vill., at night, 25–26.VII.2012 (A.F. Medve-dev), 2 ♀; Ust-Kiran Vill., 23.VII.2012 (A.F. Medve-dev), 1 ♂.

Mesonemurus mongolicus is a Central Asian extra-continental species known earlier in Russia only from four localities in Tuva (Krivokhatsky, 2011). All the adults were collected by the author from steppe vege-tative communities on areas with drift sands. Three out of four records of this species in Tuva were also made from areas with large massifs of barchan sands. Simi-lar habitats also occur in the Baikal Region further north where this species may be distributed. Adults of this species were found neither on bare sandy dunes nor on grass-covered soils. These insects occur to-gether with the antlion Nohoveus atrifrons Hölzel, 1970 and are very cautious. Larvae of M. mongolicus are not known.

Mesonemurus mongolicus can be attributed to the most xerophilous part of the Dauro-Mongolian zo-ogeographical complex, which comprises the desert-steppe species occurring most northwards in Tuva and southern Dauria where the deserted Central-Asian Subprovince extends into Southern Siberia (Grubov, 1959). This complex also includes a number of leaf-beetles (Medvedev and Korotyaev, 1975).

In many localities of Mongolia, M. mongolicus is accompanied with M. guentheri Hölzel, 1970 which was described (Hölzel, 1970a, 1970b, 1987; Krivo-khatsky et al., 1996) from Z. Kaszab’s collections including both these species. Examination of the serial material has shown an extreme variability of some diagnostic characters of the structure of the genitalia

Page 2: The first record of the antlionMesonemurus mongolicusHölzel, 1970 (Neuroptera, Myrmeleontidae) in the Republic of Buryatia

THE FIRST RECORD OF THE ANTLION

ENTOMOLOGICAL REVIEW Vol. 93 No. 7 2013

845

and other morphological formations, used by H. Höl-zel in the description (Krivokhatsky, 2011). The only character constant in both sexes in the known popula-tion of M. mongolicus, and also found in the holotype, is the presence of a wide brown spot between the bases of the antennae, which is absent in all the con-geners. All the individuals of M. mongolicus were identified by me based first of all on the presence of this spot which is well visible with unaided eye and allows M. mongolicus to be recognized under field conditions.

ACKNOWLEDGMENTS

The author is grateful to V.A. Krivokhatsky (Zoo-logical Institute, Russian Academy of Sciences) for his advice and help in identification of material and prepa-ration of the paper, to B.A. Korotyaev (Zoological Institute, Russian Academy of Sciences) for his valu-able advice, and to A.F. Medvedev (Moscow State University) for the material supplied.

The study was financially supported by the Russian Foundation for Basic Research (grant no. 12-04-90867-mol_rf_nr).

REFERENCES

1. Grubov, V.I., Attempt toward the Botanical-Geographical Regionalization of Central Asia (All Un-ion Botan. Soc., Leningrad, 1959) [in Russian].

2. Hölzel, H., “Myrmeleonidae aus den westlichen Teilen der Mongolei (Neuroptera—Planipennia),” Mitt. Zool. Mus. Berlin. 46 (2), 247–264 (1970a).

3. Hölzel, H., “Beiträge zur Kenntnis der Myrmeleoniden der Mongolei (Neuroptera: Planipennia),” Acta zool. Acad. Sci. Hung. 16 (1–2), 115–136 (1970b).

4. Hölzel, H., “Revision der Distoleonini I. Die Genera Macronemurus Costa, Geyria Esben-Petersen und Mesonemurus Navás (Planipennia, Myrmeleonidae),” Entomofauna 8 (27), 369–410 (1987).

5. Krivokhatsky, V.A., The Antlions (Neuroptera: Myrme-leontidae) of Russia (KMK, St. Petersburg, Moscow, 2011) [in Russian].

6. Krivokhatsky, V.A., Emeljanov, A.F., and Loba- nov, A.L., “The Distribution of Antlions in Mongolia (Insecta: Neuroptera: Myrmeleontidae),” in Pure and Applied Research in Neuropterology. Proc. Fifth Int. Symp. Neuropterol. (Cairo, Egypt, 1994), Ed. by Canard, M., Aspöck, H., and Mansell, M.W. (Toulouse, France, 1996), pp. 147–159.

7. Makarkin, V.N., “The Neuroptera of the Transbaikalia,” in Taxonomy of the Insects of Siberia and the Far East (Far Eastern Sci. Center, Acad. Sci. USSR, Vladivostok, 1987), pp. 72–77 [in Russian].

8. Medvedev, L.N. and Korotyaev, B.A., “On the Leaf-Beetle Fauna (Coleoptera, Chrysomelidae) of the Tuva Autonomous Republic and Northwestern Mongolia,” in The Insects of Mongolia (Leningrad, 1975), issue 3, pp. 177–190 [in Russian].

9. Pleshanov, A.S., “Review of the Neuroptera of Siberia and the Far East,” in Fauna of the Insects of Eastern Si-beria and the Far East (Irkutsk State Univ., Irkutsk, 1974), pp. 180–193 [in Russian].