Hydroscapha granulum (Motschulsky, 1855)

Temreshev, Izbasar I., 2025, Hydroscaphidae (Coleoptera, Myxophaga) - a new beetle family to the fauna of Kazakhstan, Ecologica Montenegrina 86, pp. 150-157 : 151-157

publication ID

https://doi.org/10.37828/em.2025.86.9

persistent identifier

https://treatment.plazi.org/id/87633F75-FFAE-FFA2-20BE-FA288166FD2F

treatment provided by

Felipe

scientific name

Hydroscapha granulum (Motschulsky, 1855)
status

 

Hydroscapha granulum (Motschulsky, 1855)

= Limnebius gyrinoides (Aubé, 1863)

= Limnebius granulum Motschulsky, 1855

= Limnebius gyrinoides Aubé, 1863

Figure 1 View Figure 1 .

Material examined. 1 ex. ♂, 1 ex. ♀ – 26.05.2023, Central Kazakhstan, Ulytau oblast , Ulytasky District , neighborhoods Koskol village, 49°30'55.31"N 67°4'9.25"E, in Koskol lake, manual method in filamentous green algae, I.I. Temreshev GoogleMaps ; 1 ex. ♂ - 3.04.2025, Zhambyl oblast , Zhambyl District, neighborhoods Aischa Bibi village, 42°49'46.06"N 71°9'20.92"E, in small river without name, manual method in filamentous green algae, I.I. Temreshev GoogleMaps .

Hydroscapha granulum is distributed in Europe ( Bulgaria, Corsica, France, Greece, Italy, Sardinia, Serbia, Spain, Ukraine) and Asia (Azerbaijan, Iran, Turkey) ( d’Orchymont 1945; Hinton 1969; Richoux & Doledec 1987; Löbl 1994; Bartenev & Gramma 1995; Ribera 2000; Löbl 2003; Falamarzi et al. 2010; Hajek 2017; Van Vondel et al. 2017; Ertorun 2018) ( Fig. 3 View Figure 3 ).

The records of beetles from the suborder Myxophaga and the family Hydroscaphidae were absent for Kazakhstan ( Hajek 2017; Fikáček et al. 2020). Examined H. granulum specimens were found in Koskol lake and small river without name on filamentous green algae ( Figure 2A, C, D View Figure 2 ). One of the beetles (♂) in Ulytau oblast was found together with the juvenile European aquatic spider Argyroneta aquatica (Clerck, 1757) in its webs ( Fig. 2B View Figure 2 ).

Remarks. The beetles probably entered Koskol lake in Ulytau Oblast from the river of the same name, which flows into and out of it. This explains their small number; usually this species is numerous in the places where it was found, judging by the following sources. Unfortunately, the river and in small river in Zhambyl oblast without name itself could not be examined due to lack of time.

Discussion

In total, one species of skiff beetles ( Hydroscaphidae ) from genus Hydroscapha is recorded for Kazakhstan. The finds of H. granulum from Ulytau oblast of Central Kazakhstan and in Zhambyl oblast of South Kazakhstan, are currently the north and easthmost localities for this species. H. granulum is a rare species because of its small size and captures are rathe raleatory ( Richoux & Doledec 1987; Ertorun 2018). Therefore, its presence in other parts of Kazakhstan, as well as in suitable habitats in neighboring countries of Central Asia, is not excluded. This shows that the fauna of suborder Myxophaga and water Coleoptera in Kazakhstan needs further study. Quite a few new species for the country have been discovered previously ( Temreshev 2012a, b; Temreshev & Kolov 2012; Temreshev & Esenbekova 2013; Temreshev & Kolov 2013; Temreshev 2014; Temreshev et al. 2014; Prokin et al. 2015; Temreshev 2015a, b, c, d, e; Temreshev et al. 2014; Zinchenko 2015; Temreshev 2016; 2018a, b; Temreshev 2023; Sazhnev et al. 2024). In future it is possible that another species water beetles may be found on the territory of Kazakhstan.

Acknowledgements

The work was carried out within the framework of the project "Comprehensive assessment of the state of the environment and health of the population of the cities of Zhezkazgan, Satpayev and Ulytau district of the Ulytau oblast with the formation of an environmental electronic geographic information system" and "Development of documentation on the conservation of biodiversity with the conduct of scientific, survey, research work on the impact of production facilities of "Asian Gas Pipeline LLP".

Author thanks to Azamat Beysaly (Ulytau, Kazakhstan) for help in organizing the expedition in neighborhoods Koskol village, and anonymous reviewers the valuable comments that improved the manuscript.

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