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Báo cáo nghiên cứu khoa học: "Notes on the water bugs (Hemiptera: Heteroptera) in urban areas of Hanoi"

Trong nghiên cứu này, dữ liệu faunistic về những lỗi nước từ khu vực đô thị của Hà Nội đã được xếp vào mục lục lần đầu tiên. Từ các cuộc điều tra của chúng tôi, chúng tôi đã xác định được tổng cộng 23 loài 12 và chín gia đình lỗi thủy sản (Nepomorpha) và bán thủy sản lỗi (Gerromorpha) từ các khu vực nghiên cứu. | VNU Journal of Science Natural Sciences and Technology 27 2011 9-13 Notes on the water bugs Hemiptera Heteroptera in urban areas of Hanoi Tran Anh Duc Pham Thi Mai Nguyen Xuan Quynh Ngo Xuan Nam Nguyen Quang Huy Faculty of Biology Hanoi University of Science VNU 334 Nguyen Trai Hanoi Vietnam Received 28 December 2010 Abstract. In the present study faunistic data on water bugs from urban area of Hanoi has been catalogued for the first time. From our surveys we have identified a total of 23 species of 12 genera and nine families of aquatic bugs Nepomorpha and semi-aquatic bugs Gerromorpha from the studied area. The water bug fauna in Hanoi is of a typical lowland fauna in Southeast Asia mainland comprising many species with wide distribution. Several taxa are expected to exist in the studied area but they have not been seen during our field collection suggesting further field studies are needed. Keywords water bugs Hemiptera Gerromorpha Nepomorpha Hanoi. 1. Introduction Hanoi is situated in the centre of the Red River delta in the North of Vietnam with a typical humid subtropical climate. Hanoi is a city between rivers thus has many natural lakes which are traces of ancient rivers . Its central town has several rivers which are in fact channels created few hundreds years ago such as To Lich River and Nhue River. Natural rivers in Hanoi run mostly through its rural districts 1 . Recent developments have caused various levels of pollution in Hanoi area especially in the central town 1 . This certainly affects the lives of aquatic organisms like water bugs order Hemiptera . Corresponding author. Tel. 84-4-38582795. E-mail tran.anhduc@hus.edu.vn The water Hemiptera comprises two infraorders namely Gerromorpha semi-aquatic bugs and Nepomorpha true aquatic bugs . The fauna of Vietnamese water bugs has been studied over past few decades mainly by foreign scientists. Those studies mostly based on samples collected from natural habitats. To date there has yet any study on .