Typical shape of Hybomitra and Tabanus larvae. Head is at right and respiratory siphon at left. Live in wet shoreline of lakes. Aggressive carnivores that can even eat small frogs and mouth parts that can easily penetrate human skin to give a very painful bite. Mandibles same design and function as that of a rattlesnake. Size for size tabanid larvae probably more venemous
From a Kodochrome slide.