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Brachycera

insect suborder
Also known as: Brachycera-Orthorrhapha

Quick Summary

The suborder Brachycera is a group within the order Diptera, commonly known as true flies. Brachycera are distinguished by their antennae, which are typically short and have a flagellum fused into a compound third segment, often with a bristle-like arista. Unlike the Nematocera suborder, Brachycera usually have palpi with one or two segments and short antennae with a limited number of joints.123

The larvae of Brachycera, like other flies, are endopterygote insects, meaning they undergo complete metamorphosis. They lack wings and segmented thoracic legs. Primitive Brachycera larvae possess a well-developed head and chewing mouthparts, while more advanced forms have reduced head capsules and mouth hooks that move vertically. These larvae can be described by various forms such as vermiform (maggot-like).45

Early Brachycera appeared in the Mesozoic Era, with most modern families evolving by the end of the Eocene Epoch. Examples of Brachycera include horseflies, robber flies, and houseflies.61

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