My study investigates the diets of non-Tanypodinae chironomid larvae.  During 2006, I collected samples of chironomids and their potential food sources (ex. epiphytic algae) from wetlands in southeastern United States.  My research sites represent four basic wetland types: forested depression, herbaceous depression, forested floodplain, and herbaceous floodplain.  I am using stable isotope analysis of invertebrate and food samples to gather data on their ¹³C and ¹⁵N percentages and C:N ratios.  These data are interpreted using EPA’s IsoSource mixing model, statistics, and cluster analysis to estimate the relative contribution of resources to chironomid diets in each habitat.  Initial findings indicate contrasts between chironomid populations in herbaceous and forested sites within the same watershed and suggest that “generalist” is a common niche of some non-Tanypodinae larvae.  Analysis and data interpretation are currently ongoing.