Image: Close up of thorax of a Funnel-web spider with mites
A close up of the thorax (head) of a Funnel-web spider (Hadronyche sp) that was brought in to the Australian Museum to be identified. The brown dots covering the thorax are phoretic mites.
- Carl Bento
- © Australian Museum
- Australian Museum
These mites are deutonymphs (second instar nymphs) of some species of the family Acaridae. The deutonymph in these species is a non-feeding stage that functions only for dispersal. This morph is called a hypopus (plural hypopodes) and will be attached to the spider by a ventral sucker plate. They are not parasites.