Since the discovery of Wyeomyia Smithiiin the leaves of Pitcher plants in New Jersey, by Dr.J.B. Smith, it has been reported from Massachusetts and Florida.On June 16tg of the present year, the writer found a larva of the second stage in a Pitcher-plant in a greenhouse in the Botanical Gardens, Washington, D.C. July 8th, three more specimens were taken there The plants had been brought from South Carolina, and had been in the greenhouse for several Years.