A new data on bees of the tribe Anthidiini (Apoidea: Megachilidae) from Mongolia with description a new species of Pseudoanthidium Friese, 1898

Ivlev K.S. 1 , Astafurova Yu.V. 2
1 Department of Entomology, Faculty of Biology, Saint Petersburg State University, St. Petersburg, Russia
2 Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia

Year: 2026, Number: 550, Pages: 9-22

The results of a study of Mongolian bees of the tribe Anthidiini are presented. Twelve species are currently known from this country, six of them (Anthidium florentinum, A. montanum, A. trochantericum, Bathanthidium sibiricum, Icteranthidium croceum, Stelis ornatula) are newly recorded from Mongolia. A new species Pseudoanthidium anastasiae Ivlev, sp. n. is described from the Uvurkhangai Aimag. New synonymies have been proposed for Anthidium trochantericum Morawitz, 1893, = A. qingtaoi Niu & Zhu, 2020, syn. n.; Stelis ornatula (Klug, 1807), = S. semenovi Popov, 1933, syn. n., = S. semenovi var. nigra Popov, 1933, syn. n. The synonymy of Stelis ornatula ssp. montana Popov, 1933 and S. ornatula ssp. gussakovskiji Popov, 1933 with S. ornatula (Klug, 1807) has been confirmed. The lectotypes for Stelis ornatula ssp. gussakovskiji Popov, 1933, S. ornatula ssp. montana Popov, 1933 and S. semenovi var. nigra Popov, 1933 are designated. The Mongolian fauna of Anthidiini is characterized by relatively low species diversity and mostly consists of widespread Palaearctic species.

DOI: 10.25221/fee.550.2

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Keywords: Anthidiini, new species, synonymy, fauna, new records, Mongolia,

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