Aid to the Identification of Insects, v. 1, London, E.W. Janson, 1880-90, classification, insects, Psephenus darwinii, Edwin Wilson, Arthropoda, arthropod, Charles Owen Waterhouse, entomology, A detailed illustration of a beetle from the genus Prophorus, specifically Prophorus larnum. The specimen is depicted with distinctive features, showcasing its elongated, segmented body and prominent legs. The caption includes the scientific name along with the source reference that notes the illustration's origin and the year of publication. The overall composition emphasizes the intricate details of the insect's anatomy, highlighting its role in the ecosystem.