taxonID	type	description	language	source
E73387E9AB23FFDAFCDE7A00FC69F9D6.taxon	materials_examined	Material examined: DENMARK, West Greenland, Godhavn, 4.08.1968, J. Bocher, 1 ♂, 1 ♀; RUSSIA: Chukotka reg., Krasnoarmeysky (69.54 ° N, 172.00 ° E), 08 – 10.07.1963, K. Gorodkov, 5 ♂ (ZIN); Murmansk Reg., Murmansk, 68.97 ° N, 33.13 ° E, 08 – 14.07.2023, N. Vikhrev, 2 ♂; Yamalo-Nenets reg.: Schuchya River [67.5 ° N, 68.8 ° E], 02 – 27.07.1984, P. Basikhin, 13 ♂, 4 ♀; Kharp env., Cherny R, 66.82 ° N, 65.635 ° E, on carrion, 14.07.2019, N. Vikhrev, 2 ♂, 1 ♀; 5 km NE of Salekhard, on carrion, 16 – 19.07.2019, N. Vikhrev, 4 ♀♀ (all ZMUM). DISTRIBUTION. North of 66.6 ° N, 66.8 ° E, Holarctic.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB23FFDBFCD8788EFD14FE65.taxon	materials_examined	CANADA, Manitoba prov., Wapusk NP, 58.725 ° N, 93.464 ° E, 24.07.2007, A. Renaud, 1 ♂ (ZMUM).	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB23FFDBFCD8788EFD14FE65.taxon	distribution	Distribution. Widely distributed in Nearctic from Alaska to Mexico.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB23FFDBFCD8788EFD14FE65.taxon	discussion	Remarks. As follows from the key below, the differences between this species and H. dentipes are very weak. The ranges of these two species overlap widely in North America. I supposed that H. cristata is a descendant of an earlier event of introduction of H. dentipes to America and, subsequently, H. dentipes was introduced to America once again. However, my molecular data indicates that H. cristata is a descendant of the circumpolar H. anxia.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB22FFDBFF3A7FD9FD50FDC8.taxon	description	Hydrotaea cyrtoneura Seguy, 1938 Synonymized here, see H. cyrtoneurina.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB22FFDBFF227C8DFC2BFA52.taxon	materials_examined	Type material examined: the holotype, of H. cyrtoneura Seguy, 1938, ♂: China, Chekiang (= Zhejiang prov., Hangzhou, 30 ° N, 120 ° E) (MNHN). Other material examined: 60 ♂ ♀ from ZMUM, ZIN and MNHN collections from: AZERBAIJAN; BELARUS: Gomel and Vitebsk regions; FRANCE, Gers dept.; KAZAKH- STAN, Almaty Reg., RUSSIA: Altai Republic, Crimea, Dagestan, Kaliningrad, Krasnodar, Mordovia, Moscow, Pskov, Vladimir, Voronezh regions; SERBIA; SPAIN, Alicante prov.; TURKEY: Antalya, Konya and Sakarya provinces; TAJISKISTAN, Vahdat Distr.; UZBEKI- STAN, Tashkent Reg.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB22FFDBFF227C8DFC2BFA52.taxon	distribution	Distribution. Widespread in the Palaearctic from W Europe to Korea. The northernmost records in European Russia are from 56 ° N. Also was recorded in the Oriental region: China (Henan), India (Tamil Nadu). Synonymy. After the examination of the holotype of H. cyrtoneura in MNHN, Hennig (Hennig 1962) came to a conclusion that H. cyrtoneura slightly differs from H. cyrtoneurina by shorter postpedicel, wider cheeks, and longer hairs on the eyes. I had a possibility to re-examine the holotype of H. cyrtoneura and simultaneously to compare it with the material of H. cyrtoneurina from MNHN (only 1 male specimen in the collection) and specimens from ZMUM, which I prudently took with me. The intraspecific variability of ZMUM specimens is large, ♂: body length from 4.5 mm to 7.5 mm; eye more or less densely hairy; cheeks wider or narrower. The type of H. cyrtoneura has no significant peculiarities beyond the intraspecific variability. So, I regard that H. cyrtoneura is a synonym of the widespread and common H. cyrtoneurina, Hydrotaea cyrtoneurina Zetterstedt, 1845 = Hydrotaea cyrtoneura Seguy, 1938 syn. nov.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB22FFD8FCD2780AFDAFFB68.taxon	materials_examined	Material examined: over 400 ♂ ♀ from ZMUM and ZIN collections from: AZERBAIJAN; BELARUS: Brest, Gomel, Minsk, Mogilev and Vitebsk regions; FINLAND; MOLDOVA; MONGOLIA, Uvs aimak; MORROCO; NEPAL; RUSSIA: Altai Republic, Amur, Arkhangelsk, Astrakhan, Buryatia, Crimea, Dagestan, Irkutsk, Khanty-Mansi, Kaliningrad, Khabarovsk, Komi, Krasnodar, Krasnoyarsk (inc. Taimyr peninsula), Kursk, Lipetsk, Magadan, Mordovia, Moscow, Murmansk, Nizhniy-Novgorod, Primorsky, Pskov, Ryazan, Tambov, Tver, Ulyanovsk, Vladimir, Volgograd, Vologda, Yaroslavl, Yamalo-Nenets, Zabaikalsky regions; SERBIA; TURKEY: Bolu, Duzce, and Sakarya provinces; TAJIKI- STAN, Vahdat Distr.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB22FFD8FCD2780AFDAFFB68.taxon	distribution	Distribution. Almost cosmopolitan. Widely distributed in the Palaearctic from the Arctic tundra to subtropics and in the Nearctic from Alaska to Quebec. It is present in the north of the Oriental region in N India, Nepal, N Vietnam. Also reported from the Neotropical region.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB21FFD9FF777AECFE3AFCCE.taxon	materials_examined	Type material examined: syntype, ♀, Africa or., Katona 904, Kilimandjaro (ZMHU). Other material examined: ETHIOPIA: Amhara Reg., 15.8 km NEE Debre Birhan, 9.74 º N, 39.66 º E, 2940 m, 28.04.2015, O. Gorbunov, 3 ♂, 2 ♀; Oromia Reg.: 9 km S of Goba, Bale Mts., 6.933 º N, 39.951 º E, 3070 m, 19 – 20.03.2012, N. Vikhrev, 16 ♂, 15 ♀; Goba env, 7.024 º N, 39.98 º E, 2700 m, garden 6 – 11.12.2023, N. Vikhrev, 9 ♂, 5 ♀; Addis- Ababa, 9.00 º N, 38.73 º E, 2330 m, 10.01.2021, N. Vikhrev, 1 ♀ (all ZMUM).	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB21FFD9FF777AECFE3AFCCE.taxon	distribution	Distribution. Known from Ethiopia, mostly from altitudes above 2000 m, described from N Tanzania, ‘ Kilimanjaro’ with an unknown exact locality and altitude. Pont (Pont 2024) also reported it for S Africa and Uganda. Descriptive notes. Initially Stein’s type series consisted of 1 ♂ and 5 ♀, presently only 1 ♀ is stored in ZMHU. Available sources of information on H. fasciata are restricted to the original description (Stein 1913: 505) and the key to African Hydrotaea by Emden (Emden 1943: 80 – 81). Meanwhile, a representative series of this species in ZMUM allowed me to clarify some points. Male, body length 7 – 7.5 mm, rarely 6 mm. Head. Eyes with long and dense hairs. Distance between eye margins more than width of antenna. Fronto-orbital plates matt-black. Aristal hairs shorter than basal diameter of arista. Thorax with an Anthomyia - like pattern, though it is not very distinct: dirty-black spots on dirty dark grey background with vague borders. Thoracic pattern better visible in posterodorsal view, worse in dorsal view as is shown in Fig. 3. Presutural part of scutum with a median (actually consists of two almost fused spots) and two lateral black spots; postsutural part of scutum also with a median and two lateral black spots; median spots wider than lateral ones; median spots fused with each other; lateral spots separate. Scutal chaetotaxy: 2 + 4 dc; 2 prst ac; notopleuron entirely hairy; prealar seta absent; katepimeron bare. Wing with vein M slightly curved forward at apex. Calypters yellow, halter black. Legs. f 1 with apical tooth; t 1 emarginated in basal half, without p seta. f 2 in basal half with: 3 – 4 outward directed a setae; 5 – 6 spinulose v setae; 6 – 7 spinulose pv setae. t 2 with 2 – 4 pd and 1 (2) ad. f 3 near apex with 3 – 4 long av and 2 – 3 pv. t 3 densely setulose: 4 – 5 av, a row of ad (1 – 3 near apex strong), 1 strong pd, 5 – 7 pv. Abdominal tergites 3 and 4 dirty-grey dusted, with black median vitta and black band at posterior margin. Females smaller than males, body length 6 – 7 mm. Eyes with short but dense hairs. Thoracic pattern as in male but much more distinct (Fig. 2), borders between black spots and grey background much sharper than in males. Prealar seta absent as in male (usually present in females of the H. dentipes group). Frons wide. Fore leg not modified. f 2 without long setae. t 3 with 3 av, 3 ad, 1 pd, without pv.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FF587D75FB18FF7B.taxon	description	Fig. 7	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FF587D75FB18FF7B.taxon	materials_examined	TANZANIA, 10 km NEE of Mbeya, Mbeya Range pass, 8.847 ° S, 33.532 ° E, 2390 m, N. Vikhrev: 17 – 18.02.2017, 2 ♀; 24 – 29.12.2021; 10 ♂, 19 ♀ (ZMUM).	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FF587D75FB18FF7B.taxon	distribution	Distribution. Widespread in East Africa. Synonymy. H. f. abyssinica was described in a key without the indication of type series (Emden 1943: 81 – 82). Such descriptions were prohibited from 1961, while earlier described taxa are valid. There are several problems with the description of that subspecies. (1) I suppose that Emden compared Walker’s type with fresher specimens of H. fumifera in the British Museum of Natural History. Being 100 years older, Walker’s type had red-brown legs, not black, because of fading rather than because of real differences in coloration. (2) The description of subspecies implies discussion of distributional boundaries between the nominotypical and new subspecies. This was not discussed. (3) I found it difficult to identify my Tanzanian series as H. f. fumifera or H. f. abyssinica, since their characters are contradictive. I see no reason to consider H. f. abyssinica as a valid taxon, so, Hydrotaea fumifera Walker, 1853 = Hydrotaea fumifera abyssinica Emden, 1943 syn. nov.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FCE17EE3FADDFDD1.taxon	materials_examined	USA, Rhode Island state, Coventry, 41.69 ° N, 71.55 ° W, 27.04 – 15.05.2017, A. Medvedev, 60 ♂ ♀ (ZMUM).	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FCE17EE3FADDFDD1.taxon	distribution	Distribution. North America. According to de Carvalho & Couri (de Carvalho, Couri 2002) also Ecuador and Venezuela. Hydrotaea indica Shinonaga & Tewari, 2008 Synonymized here, see H. cyrtoneurina.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FCDE7C85FB03F8E9.taxon	description	Fig. 6	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FCDE7C85FB03F8E9.taxon	materials_examined	NEPAL: Rasuwa distr., Dhunche env., 28.098 ° N, 85.318 ° E, 2000 m, 7 – 9.06.2017, A. Ozerov. A. Medvedev, 6 ♂, 7 ♀; Mustang distr., Muktinath env., 28.82 ° N, 83.86 ° E, 3600 m, 1 – 9.07.2017, A. Medvedev, 9 ♂, 11 ♀.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FCDE7C85FB03F8E9.taxon	distribution	Distribution. Known from India (Kashmir) and Nepal.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD9FCDE7C85FB03F8E9.taxon	discussion	Remarks. As follows from the original publication (Pont 1975), H. kashmirana has bare eyes, while my specimens from Nepal have hairy eyes. Dr. Nigel Wyatt, curator of Diptera of the Natural History Museum, London, UK, kindly reexamined the holotype and confirmed that eyes are hairy, though the hairs are short and sparse, exactly as shown in Figs. 5 – 7. Hydrotaea lalashanensis Shinonaga, 2006 Described from Taiwan, from a single male from an elevation of 1600 m. According to Shinonaga (Shinonaga 2006), it is related to H. cyrtoneurina Zetterstedt, 1845 but differs from it by 2 + 3 instead of 2 + 4 dc.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD6FCCE796CFE0FF8AD.taxon	materials_examined	TANZANIA, Makete, 9.26 º S, 34.12 º E, 2250 m, 19 – 24.12.2021, N. Vikhrev, 4 ♂.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD6FCCE796CFE0FF8AD.taxon	distribution	Distribution. Known from Zimbabwe (Salisbury = Harare, 1500 m) and Tanzania, Makete, 2250 m.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD6FCCE796CFE0FF8AD.taxon	discussion	Remarks. H. maculithorax was described from a single female from Zimbabwe. Unfortunately, I have not properly examined the type in ZMHU where it is stored. According to the description by Stein (Stein 1913: 506), the female of H. maculithorax differs from the similar H. fasciata by smaller size, shining fronto-orbital plates and postsutural spots fused in black transversal band. Four males collected in Makete have these characters and certainly differ from males of H. fasciata. I identified Tanzanian males as H. maculithorax.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB20FFD6FCCE796CFE0FF8AD.taxon	description	Description of male. Body length 6 mm. Head. Eyes with long and dense hairs. Distance between eye margins less than width of antenna. Fronto-orbital plates narrow, shining. Arista virtually almost bare. Thorax with Anthomyia - like pattern, which is similar to that in H. fasciata, but more distinct (Fig. 4). Presutural part with median and small lateral spots; postsutural median and lateral spots fused in black transversal band. Scutal chaetotaxy: 2 + 4 dc; 2 prst ac; notopleuron entirely bare; prealar seta absent; katepimeron bare. Wing with vein M slightly curved forward at apex. Calypters yellow, halter black. Legs. f 1 with apical tooth; t 1 emarginated in basal half, without p seta. f 2 in basal half with: outward directed a setae; av and pv setae fine and short. t 2 with 2 – 3 pd and in apical quarter with a row of 5 – 6 fine av. f 3 with av and pv setae fine, about as long as femur width, near apex with 4 – 5 long av and pv setae. t 3 densely setulose, with av, ad and pv rows, 1 strong pd. Abdominal tergites 3 and 4 densely whitish-grey dusted, with black median vitta and black bands at posterior and anterior margins.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2FFFD7FCCC7DABFBBFFB3F.taxon	description	Hydrotaea mai Fan, 1965 Hydrotaea harpagospinosa Ni, 1982	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2FFFD7FCCC7DABFBBFFB3F.taxon	materials_examined	Material examined. 90 specimens from: BE- LARUS: Gomel, Minsk, and Mogilev regions. EUROPEAN RUSSIA: Mordovia, Moscow, Pskov, Ryazan, and Tver regions. ASIAN RUSSIA: Altai Rep Reg., Seminsky Pass, Turala River valley, 50.99 º N, 85.68 º E, 1350 m, 8 – 12.07.2016, N. Vikhrev; 1 ♂; Ust-Koksa, Koksa R. bank (50.29 º N, 85.55 º E), 25.06.2007, O. Kosterin, 1 ♂; Buryatia Reg.: Kyren env., 51.7 ° N, 102.1 ° E, 750 m, 16 – 19.06.2021, E. Makovetskaya, 1 ♂; Turan env, 51.670 ° N, 101.684 ° E, 870 m, 09.06.2021, N. Vikhrev, 1 ♂; Mondy env, 51.67 ° N, 101.04 ° E, 1250 m asl, 17.06.2021, E. Makovetskaya, 1 ♂; Krasnoyarsk Reg.: Ergaki NP, 52.84 ° N, 93.25 ° E, 1450 m, 27 – 29.06.2017, N. Vikhrev, 2 ♂; Tanzybei env., 53.07 ° N, 93.13 ° E, 450 m, 28 – 29.05.2018, N. Vikhrev, 1 ♂; Krasnoyarsk env., Stolby, 56.11 ° N, 92.13 ° E, K. Tomkovich, 13 – 19.06.2011, 1 ♂;	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2FFFD7FCCC7DABFBBFFB3F.taxon	distribution	Distribution. Palaearctic, from W Europe to 102 ° E. The Russian records are in a narrow range of latitudes from 50 ° N to 56 ° N., where H. palaestrica feeds on rotting meat, otherwise it is uncommon.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2FFFD7FCCC7DABFBBFFB3F.taxon	discussion	Discussion. Hydrotaea mai Fan, 1965 was described from China, Chinghai (Qinghai prov.), Haiyan [36.9 ° N, 101.0 ° E, 3000 m]. It was synonymyzed with H. palaestrica Meigen, 1826 by Xue & Chao (Xue, Chao 1998: 903). Fan (Fan 2008: 1020) again proposed H. mai as a valid species, which differs from H. palaestrica as follows: prealar seta present; frons wider than in H. palaestrica; only 1 pair of strong postsutural ac; mid coxa on posterior margin with a cluster of 5 setae. The width of the frons and amount of post ac setae are variable characters, they differ even in specimens collected in the same place and on the same date. The number of spinulose setae in the close-set cluster on the mid coxa is a character difficult to apply. Sometimes it is clear that the cluster consists of 3 setae, sometimes it presumably consists of 4 setae (Fig. 10), usually it is quite difficult to count these setae. The prealar seta is only applicable to males, in females of H. palaestrica (as well as in H. dentipes or H. similis) it is always present. Among the examined material only one male from Turan, Buryatia, has a distinct prealar seta. However, this male has 2 post ac and a cluster on mid coxa consisting of 4 setae, so Fan’s diagnostic characters do not correlate with each other. That is why I follow Xue and Chao (Xue, Chao 1998) and regard H. mai as a synonym. Pont (Pont 2024) also regarded H. mai as a synonym.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2EFFD4FCF57AA5FE09FDB0.taxon	description	Fig. 5	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2EFFD4FCF57AA5FE09FDB0.taxon	materials_examined	Material examined, about 110 specimens from: BELARUS: Gomel and Vitebsk Reg.; RUSSIA: Amur, Buryatia, Crimea, Ivanovo, Kaliningrad, Krasnodar, Kursk, Moscow, Murmansk, Primorsky, Pskov, Sakha (Yakutia), Yamalo-Nenets regions.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2EFFD4FCF57AA5FE09FDB0.taxon	distribution	Distribution. Palaearctic. From W Europe to Far East; in European Russia from 69 ° N to 43 ° N. Hydrotaea taiwanensis Shinonaga & Kano, 1987 Described from a large series from Taiwanese mountains, from elevations of 1600 – 2400 m. Since 1987, neither Shinonaga nor Kano have ever mentioned this species in their publications. The species has hairy eyes. According to Shinonaga and Kano (1987), H. taiwanensis differs from H. cyrtoneurina by hardly comprehensible characters of the chaetotaxy of f 1. I have not proposed synonymy of H. taiwanensis with H. cyrtoneurina only because the differences from H. cyrtoneurina (a row of pv setae on t 3 and straight, blunted, spinulose v setae at basal half of f 2) were not mentioned in the original description.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2EFFD4FCF57AA5FE09FDB0.taxon	description	Description (Shinonaga 1999) fits H. dentipes with 2 + 3 instead of 2 + 4 dc.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2DFFD4FF7C7C2BFC48FE3B.taxon	materials_examined	CHILE, Los Lagos Reg., Chiloe Isl., Cucao, 42.64 ° S, 74.11 ° W, 24 – 28.02.2017, A. Medvedev, 1 ♂ (Fig. 8, ZMUM). COLOMBIA, Bogota, 201 - 62, 1 ♂, 1 ♀ (MNHN, I believe these are syntypes of H. villosa).	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2DFFD4FF7C7C2BFC48FE3B.taxon	distribution	Distribution. Known from the western part of South America from Colombia to Chile.	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
E73387E9AB2DFFD4FF7C7C2BFC48FE3B.taxon	discussion	Remarks. When I examined our specimen from Los Lagos, my first identification was H. cyaneiventris Macquart, 1851 as it is the oldest name, it fitted the interpretation of H. cyaneiventris proposed by de Carvalho & Couri (de Carvalho, Couri 2002) and it was collected at least in the same country. However, I have not seen the lectotype of H. cyaneiventris Macquart, 1851 in MNHN, which was designed by Pont (Pont 2012) and, according to Pont, must be in a poor condition. On the other hand, I examined syntypes of H. villosa and made descriptive notes which entirely fit the specimen from Los Lagos, as well as Malloch’s (Malloch 1923: 669) descriptive notes on H. villosa. Thus, the identity of H. villosa is clear and I refer to this name in the identification key below. A separate question is if H. villosa is a junior synonym of H. cyaneiventris Macquart, 1851. Its resolving requires collecting and examination of series of S American specimens and re-examination of the lectotype of H. cyaneiventris Macquart, 1851. Untill that, I prefer to regard H. cyaneiventris as a species with doubtful identity. It is necessary to note that Hydrotaea cyaneiventris Macquart, 185 1 should not to be confused with Hydrotoea cyaneiventris Macquart, 1855, later described by the same author under the same name from Australia, which is a junior primary homonym of Hydrotaea cyaneiventris Macquart, 1851 and junior subjective synonym of Hydrotaea rostrata Robineau Desvoidy, 1830 (Pont 2024).	en	Vikhrev, Nikita E. (2024): Review of Hydrotaea dentipes species group (Diptera, Muscidae). Amurian Zoological Journal XVI (4): 1008-1020, DOI: 10.33910/2686-9519-2024-16-4-1008-1020, URL: https://doi.org/10.33910/2686-9519-2024-16-4-1008-1020
