These insects appear to have no common name...so what would you call it? and no, its not a dragonfly.
They adults resemble dragonflies, but can easily be distinguished by the readily apparent elongate and knobbed antennae. In fact, they are regarded as being closely related to Ant-lions. However, their larvae, whilst resembling that of ant-lions, do not live in sand pits in the ground, but rather in the leaf litter. Here they wait and hunt for small soft-bodied invertebrates from whose bodies they suck out all the fluid. yum yum.