Diptères, exotiques, nouveaux, ou peu connus Paris, Roret, 1838-1843, Diptera, insect, The illustration features two detailed representations of different mosquito species. The first, labeled as Rhamphidia sepalularis, is depicted in a top-down view, showcasing its elongated body and distinctive antennae. The second specimen, Eriochera nigra, is shown from a side angle, highlighting its wings and segmented body structure. Accompanying sketches illustrate the larval stage of one species, offering insight into the life cycle of these insects. The precise line work emphasizes anatomical features, providing a clear reference for entomological studies.