Diptères, exotiques, nouveaux, ou, peu, connus, Paris, Roret, 1838-1843, Diptera, insect, This illustration features a detailed study of various species within the genus Pangonia, showcasing their anatomical structures. The top section displays a labeled diagram of three distinct species: Pangonia crassipalpis, Pangonia lugubris, and Pangonia angustata. Each specimen is meticulously rendered with emphasis on their wings and body proportions. Below these, additional views provide insights into the unique characteristics of the fourth species, Pangonia erimera, highlighting the differences in wing shape and body morphology. The intricate line work reflects the precision typical of entomological studies, capturing the details necessary for identification and further research in the field of entomology.