Clubbed-antennae
Guides
Chrysops clavicornis
deer fly
Chrysops clavicornis is a species of deer fly in the family Tabanidae, described by Brennan in 1935. It belongs to the genus Chrysops, a diverse group of biting flies commonly known as deer flies or yellow flies. The species is characterized by clubbed antennae, as indicated by its specific epithet 'clavicornis' (from Latin clavus = club, cornu = horn). Like other members of the genus, it is likely a blood-feeding fly with females requiring blood meals for egg development.
Cimbicidae
Club-horned Sawflies, Clubhorn Sawflies
Cimbicidae is a small family of large-bodied sawflies in the suborder Symphyta, characterized by antennae with prominent apical clubs or knobs. Adults of some species exceed 3 cm in length and rank among the heaviest of all Hymenoptera. The family contains approximately 20 genera and 200 described species worldwide. Larvae are solitary herbivores that feed on plant foliage.
Mydas clavatus
Clubbed Mydas Fly
Mydas clavatus is a large, striking mydas fly native to temperate eastern North America. Adults are notable Batesian mimics of spider wasps, displaying bold behavior enabled by their wasp-like appearance. The species is distinguished by a prominent orange to red abdominal marking and clubbed antennae—a trait shared across the genus. Adults are active in mid-summer and have been documented visiting diverse flowering plants for nectar.
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