Psocodea is a research area that focuses on the study of Psocoptera, commonly known as booklice or barklice. Psocoptera are small insects found in both terrestrial and aquatic habitats, and are known for their scavenging habits and diverse feeding preferences. Research in this area involves studying the taxonomy, morphology, ecology, behavior, and evolution of psocopteran species. Psocodea also explores the interactions between psocopterans and their environment, as well as their role in ecosystems. This research area is important for understanding the diversity and ecology of these often overlooked insects.