The Park is of national importance for its insects and other invertebrates, with 123 nationally scarce or threatened species recorded so far. In summer, you can enjoy the sight of grassland butterflies like the skippers, the small heath and the beautiful small copper, whose copper coloured wings, fringed and spotted with black, positively glow in the summer sunshine. In 2005, Bushy Park was found to have the nationally important double line moth. In Southern and Eastern England this is also found only in Richmond Park and Wimbledon Common

Bushy Park is also an important site for solitary bees and wasps with over 150 species found so far. These tiny, frantically busy, insects are no threat to humans. If you have sharp eyes, you can find the burrows of several species in the bare sandy soil on worn paths.

Bushy Park's ancient trees and decaying wood habitats are nationally important for a number of internationally endangered invertebrates, including the rusty click Beetle, the cardinal click Beetle and the stag beetle.