Aquatic Coleoptera from Pakistan: faunistic and zoogeographical contribution (Coleoptera: Gyrinidae: Dytiscidae: Hydrophilidae) Author Darilmaz, Mustafa C. Faculty of Science and Letters, Department of Biology, Aksaray University, Aksaray, Turkey; Author Ahmed, Zubair Federal Urdu University of Arts, Sciences & Technology, Karachi, Pakistan text Journal of Natural History 2015 2015-07-31 50 149 162 http://dx.doi.org/10.1080/00222933.2015.1059515 journal article 21262 10.1080/00222933.2015.1059515 0278f8af-cfe4-4608-8c4c-61eda0158b7c 1464-5262 3991843 Hydaticus ( Prodaticus ) ricinus Wewalka Material examined 2 ex. PA1; 1 ex. PA6 Distribution Oriental Region: India ( Assam , Tamil Nadu ), Bhutan , Myanmar , Nepal (Danda Pakhar), Sri Lanka (Polonnaruwa); China ( Tibet ), Laos , Thailand , Vietnam . Palaearctic Region: Afghanistan , Pakistan , Nepal ( Wewalka 1979 ; Ghosh and Nilsson 2012 ).