taxonID	type	description	language	source
CA377143044DFF8B61ADFB38FBA0B2B9.taxon	description	Fig. 1	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044DFF8B61ADFB38FBA0B2B9.taxon	materials_examined	MATERIAL. Russia: Volgograd Oblast, Serafimovich env., 49.57 ºN, 42.60 ºE, 28 – 29. IV 2013, 1 ♂, coll. N. Vikhrev.	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044DFF8B61ADFB38FBA0B2B9.taxon	diagnosis	DIAGNOSIS. The species can be differentiated from the other species of the genus Allotrichoma by the structure of male genitalia only. The most important character is the shape of cerci, which are pincer-like and apically narrow from dorsal (posterior) view. The shape from the dorsal view is similar to that of several species, among them A. filiforme Becker, 1896, A. strandi Duda, 1942, A. trispinum Becker, 1896 (Stuke, 2022, Fig. 3 p. 300, Figs 10, 11 p. 303) but in lateral view cerci of A. bifidum distinctly broaded dorsally and ventrally and are triangular (Fig. 1).	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044DFF8B61ADFB38FBA0B2B9.taxon	distribution	DISTRIBUTION. Allotrichoma bifidum was described from Hungary and Romania (Papp, 1974), found in Serbia (Cansoneri & Rampini, 1990), Slovakia (Zatwarnicki, 1996) and Bulgaria (Beschovski & Zatwarnicki, 2002). Stuke (2022) reported about the distribution of this species in Croatia and Russia (South Siberia: Buryatia). Here A. bifidum is recorded from European Russia for the first time.	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044EFF8A61ADFBC7FD19B2DC.taxon	description	Fig. 2	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044EFF8A61ADFBC7FD19B2DC.taxon	materials_examined	MATERIAL. Russia: Saratov Oblast, Khvalynsky district, env. village Demkino, sandy quarry 52.267003 ºN, 47.796580 ºE, from the nests of the shore swallow Riparia riparia, 4. XI 2021, 3 ♂ (No 46, 47, 48), coll. E. N. Kondratyev.	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044EFF8A61ADFBC7FD19B2DC.taxon	diagnosis	DIAGNOSIS. The species like the previous species can be differentiated from the other species of the genus Allotrichoma by the structure of male genitalia only. The most important character is the shape of cerci, which are clasper-like, long, narrow, and a little wider at apex than in the middle part from dorsal (posterior) view. This shape from the dorsal view is similar to that of several species, among them A. picenum Canzoneri et Rampini, 1990 and A. laterale (Loew, 1860) (Stuke, 2022, Fig. 6, p. 301 and Fig. 4, p. 300) but in lateral view cerci of A. leotoni elongated-oval not truncate as in A. picenum and not so broad as in A. laterale. Besides cerci of A. leotoni bear 2 strong long apical setae (4 setae in A. picenum and no strong setae in A. laterale) (Fig. 2).	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
CA377143044EFF8A61ADFBC7FD19B2DC.taxon	distribution	DISTRIBUTION. The species was described from Morocco (Vitte, 1992) and for a long time was known only from the territory of the type locality. The investigation of the European species of the genus Allotrichoma (Stuke, 2022) showed that the species is also distributed in Cyprus and France. We herein register A. leotoni in Russia for the first time. The authors are very grateful to Nikita Vikhrev (Zoological Museum Moscow University, Moscow) and Eugeny Konratyev (Russian Research Anti-Plague Institute " Microbe ", Saratov) for the material on Diptera provided for this study. The study was conducted under the state assignment of project of Lomonosov Moscow State University (A. L. Ozerov) and the state project of A. N. Severtsov Institute of Ecology and Evolution RAS (M. G. Krivosheina).	en	Krivosheina, M. G., Ozerov, A. L. (2025): NEW DATA ON THE DISTRIBUTION OF THE SHORE FLIES OF THE GENUS ALLOTRICHOMA BECKER, 1896 (DIPTERA: EPHYDRIDAE) IN RUSSIA. Far Eastern Entomologist 525: 1-4, DOI: 10.25221/fee.525.1, URL: https://doi.org/10.25221/fee.525.1
