Phantom midge (Chaoborus crystallinus) larva. Coloured scanning electron micrograph (SEM) of the head of a phantom midge larva, showing its mouthparts (left) and one of its eyes (black). Chaoborus are non-biting midges are found near standing water that is not inhabited by fish. Their larvae feed on small aquatic life such as waterfleas and copepods. Magnification: x67, when printed 10 cm wide.