Larvenformen der Dipteren

Willi Hennig's work, Larvenformen der Dipteren (1952), is a foundational text on the larval forms of Diptera, the order of insects that includes flies, mosquitoes, and gnats.1

Fly larvae, or maggots, are characterized by the absence of true, jointed thoracic legs. They often possess "false legs" or prolegs that aid in locomotion. Primitive fly larvae tend to have more developed heads with complex mouthparts, while more evolved larvae, like maggots, have simplified structures, often featuring only mouth hooks and posterior spiracles. These larvae play crucial ecological roles, such as breaking down organic matter. Hennig's research focused on classifying these diverse larval forms within the broader context of insect evolution and systematics.2341