In 1979, the Mosquito Information Management Project (MIMP) was initiated to develop a computer-based system for storing and retrieving systematic, ecologic and distributional data on mosquitoes. The data base is being compiled from collection records accompanying approximately one million specimens in the National Museum of Natural History, Smithsonian Institution. To date, 15,500 collection forms pertaining to about 402,000 specimens have been entered into the computer. Using the et of programs SELf-GEnerating Master (SELGEM), any combination of data recorded on the forms can be extracted and associated and then transmitted to the user in the form of a report. The MIMP has acquired several mapping programs that permit computer generation of species distribution maps for any region of the world. This project is directed at supporting systematic research and providing easily accessible ecologic and distributional information to public health organizations and other scientific agencies concerned with vector species of mosquitoes.