The last taxonomic work on the Zygoptera of the undivided India was done by F.F. LA1DLAW (1921, Rec Ind. Mus. 19: 145-163) and F.C. FRASER (1933-1934, Fauna of British India, Odonata, vols 1-2, Taylor & Francis, London), though they did not include in their surveys many of the areas now comprising Pakistan. In view of this, systematic work on the Zygoptera of Pakistan has been initiated in the Department of Entomology, University of Agriculture, Falsala had. The district is an alluvial plain of recent formation. Its climate is hot and dry in summer and cold in winter. The temperature varies considerably; it may touch the 50° C (122° F) mark in summer, while it may drop below the freezing point in winter. There are plenty of water reservoirs, drain nullahs and marshy places. The Ravi and Chenab rivers flow on its eastern and western boundaries, respectively.