A population ofBittacomorpha clavipeswas studied in an Ozark spring from July 1987- August 1988. Measurement of larval head capsules (N=4,544) showedB. clavipeshas four distinct larval instars. Seasonal distribution of immature and adult life stages suggests that this population has an asynchronous, non-seasonal, multivoltine life history with at least three cohorts. First instar larvae and pupae were collected during all months except December through March and December through February, respectively. Adults and larval instars II-IV were collected throughout the year. Larval recruitment generally paralleled adult flight periods, and the presence of adults during all months sampled indicates a correlation with ovipositional periods. The life history documented here forB. clavipessuggests that limiting factors for growth and reproduction are not seasonally dependent for this population.