Journal of Environmental Science and Engineering A9Jan.-Feb. (2020) 13-16 doi:10.17265/2162-5298/2020.01.002 D DAVID PUBLISHING The Aquatic Beetles Families: Hydraenidae and Hydrophilidae in County Khoramabad Elliye Yahyapour,Razie Mahdavi and Reza Vafaei-Shoushtari Department of Entomology, Faculty of Agricultural Sciences, Islamic Azad University, Arak-Branch, Arak 38135/567, Iran Abstract: This investigation was carried out during 2016-2017 in order to identify the aquatic beetle species of county Khoramabad in west of Iran. Four genera and seven species belonging to families Hydrophilidae and Hydraenidae were found. Three species, Berosus luridus (Linnaeus, 1761), Limnebius nitidus (Marsham, 1802) and Ochthebius nilssoni (Hebauer, 1986) are recorded for the first time from Iran. Key words: Aquatic, Hydraenidae, Hydrophilidae, Khoramabad. 1. Introduction Khoramabad was studied. These counties are located in West of Iran (Fig. 1). For collecting aquatic beetles, Aquatic insects are a group of arthropods that live sweeping the water with a metal sieve or net was the in the water at some stage of their lives.Some of them main method. The samples were separated by means live by the water and are somehow dependent on of forceps and sorted in flat, white tray. The beetles water. Considering the importance of the environment were preserved in 96% alcohol and then they were and increasing the level of contamination of current identified to genera and species levels using valid keys and static water, study of aquatic insects is of great Epler (1996), samples were then sent to Germany for importance, because the presence or absence of this confirmation of identification. And in alcohol group of living organisms in aquatic ecosystems preserved specimens are maintained in laboratory of reflects the water quality conditions [1]. The aquatic the Department of Entomology of Arak Azad beetle fauna of Iran has received little attention but University. recent studies on Iranian aquatic beetles documented the paucity of knowledge on these animals [2-12]. Iran 3. Results is a large country with various geographical regions List of species and climates and, therefore, in this project, we present Family: Hydrophilidae new information on the occurrence of some aquatic Genus BerosusLeach, 1817 beetle species in county Khoramabad. However, many Berosus spinosus (Steven, 1808) more species presumably exist in Iran yet to be Material examined: Lorestan,Khoramabad, discovered. The objective of this study as a part of our Kashkan river,33°55′ N, 92°47′ E, 1,134 m. ongoing research on the aquatic beetle fauna of Iran is General distribution: Widespread along the to improve our knowledge of this group. European coast, from Fennoscandia to the Atlantic 2. Materials coast of Western Europe, southwards to the Mediterranean; also around the Caspian Sea and in In 2016-2017, the water beetle fauna from county saline inland localities in Central and Southeastern Europe [13]. Corresponding author: Reza Vafaei-Shoushtari, associate professor, research field: entomology. Distribution in Iran: Astara [14]. 14 Effects of Feeding Siamese Neem Leaves and Zanthoxylum Pods, on Dry Matter Intake, Dry Matter Digestibility, Milk Production and Composition in Thai Holstein Dairy Cows Fig. 1 The map of Lorestan province. Berosus luridus(Linnaeus, 1761) (Fig. 2) Distribution in Iran: Gilan: Amlash [18]. Material examined: Lorestan, Khoramabad, Enochrus quadripunctatus (Herbst, 1797) Karvansara, Agricultural stream,33°75′ N, 48°48′ E, Material examined:Lorestan, Khoramabad, 1,247 m. Asadabad, River,33°81′ N, 48°24′ E,1,120 m. General distribution:Widely distributed throughout General distribution: Palearctic region and Bosnia the Palearctic region. Herzegovina, China, Denmark, France, Germany, Distribution in Iran:The species is recorded for the Israel, Italy, Norway, Russia, Ukraine, Slovenia, first time from Iran. Sweden. Description:Body length 4.5 mm, Pronotum has Distribution in Iran: Ghaemshahr[18]. dark engravings. The Tegmina have longitudinal deep Enochrus fuscipennis (Thomson, 1884) strie. Mezosternum has mid valve that is broad and Material examined:Lorestan, Khoramabad, wide in the posterior half. Zardabad, River,33°49′ N, 48°55′ E,1,635 m. Genus Enochrus (Thomson, 1859) General distribution:Palearctic region: Bosnia Enochrus politus (Kuster,1849) Herzegovina, China, Denmark, France, Germany, Material examined:Lorestan, Khoramabad, Israel, Italy, Norway, Russia, Ukraine, Slovenia, Ahmadabad, Rive,33°55′ N, 48°11′ E, 1,147 m. SwedenandNearectic region: Canada and American General distribution:Europe: Italy, Portugal, Spain; [19]. North Africa: Algeria, Canary Islands, Egypt, Distribution in Iran:Gilan, Mazandaran, Qazvin. Morocco, Madeira Archipelago, Tunisia; Asia: Arab Family: Hydraenidae Mulsant, 1844 Emirates, Afghanistan, Cyprus, Israel, Lebanon, Syria, Genus Limnebius Leach, 1815 Turkey [15-17]. Limnebius nitidus (Marsham, 1802) (Fig. 3) Effects of Feeding Siamese Neem Leaves and Zanthoxylum Pods, on Dry Matter Intake, Dry Matter 15 Digestibility, Milk Production and Composition in Thai Holstein Dairy Cows abdominal sternite lacks hair and any other appendages and this sternite in males is longer than female. Genus Ochthebius Leach, 1815 Ochthebius nilssoni (Hebauer, 1986)(Fig. 4) Material examined:Lorestan,Khoramabad, Kashkan river,33°55′ N, 92°47′ E, 1,134 m. General distribution:North of Sweden[20]. Distribution in Iran: The species is recorded for the Fig. 2 Habitus of Berosus luridus. first time from Iran. Description:Body length 1.6 mm, dorsal surface of the body metallic. The pronotum has distinct and regular troughs. The tegmina are very narrow, approximately 1.4 mm wider than the pronotum. Acknowledgment The authors wish to thank the Islamic Azad University, Arak Branch. References Fig. 3 Habitus of Limnebius nitidus. [1] Merrit, R. W., and Commius, K.W. 1996. An Introduction of the Aquatic Insects of North America, 3rd ed. Dubugue, LA: Kendall, Humt, p. 320. [2] Hosseinie, S. H. 1992. A Report on the Aquatic Coleoptera of Bushehr, Iran. Latissimus (Newsletter of the Balfour-Browne Club), p. 10. [3] Hosseinie, S. H. 1992. Report on the Aquatic Coleoptera of Hormozgan, Iran. Latissimus (Newsletter of the Balfour-Browne Club), pp.1-22. [4] Hosseinie, S. H. 1994. A Survey of the Water Beetles of Khuzestan, Iran. Latissimus (Newsletter of the Balfour-BrowneClub), pp. 1-23. [5] Hosseinie, S. H. 1995. Report on the Aquatic Coleoptera Fig. 4 Habitus of Ochthebius nilssoni. of Guilan: A Province in the North of Iran. 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