What can we say about the natural history of a given insect species? Is it an herbivore? A parasitoid? How do we know? The answers to these questions depend on data about insect natural history from observations of insects in the field or in the lab. Currently, such data are typically widely scattered, difficult to discover and analyze, and they tend to be highly heterogeneous. Aggregating such data without information loss is a challenge. This workshop will take the first steps toward developing a robust, usable ontology for insect natural history data (observations). This ontology will provide computable semantics for insect natural history observations, which will, in turn, facilitate rich, automated, and truly reproducible data integration and aggregation.