Leaf beetle taxa belonging to the Camptosomata group use their fecal material to construct cases within which their larvae develop. Despite this intriguing behavior, the fine-scale natural history of very few camptosomates has been determined. Here, we present a highly detailed account of fecal case construction and associated behaviors and life history patterns in Neochlamisus case-bearers. Using an independently derived method, we also document temporal and spatial aspects of larval case architecture. Assays of 10 Neochlamisus taxa in the laboratory are supplemented with field observations to provide a detailed description of case-associated camptosomate biology.