Zoosection
Aschiza (Aschizan flies)
Syrphus opinator. Photo: (c) Judy Gallagher, some rights reserved (CC BY)
The Aschiza are a section of the Brachycera. Two large families, the Syrphidae and the Phoridae, and a number of smaller taxa are in this group. They are similar to most of the familiar Muscomorpha with one notable exception; they do not possess a ptilinum, so lack the prominent ptilinal suture on the face as in other muscoid flies. They do still have a puparium with a circular emergence opening, but it is not as precisely…
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