THE LARVAE (AND ADULT FEMALE) OF THE TRILOBITE BEETLE
The trilobite [beetle] genus (Duliticola) belongs to the family Lycidae, commonly known as net-winged beetles.
This family is a pretty interesting one, because many of its species display huge physical differences between their males and their females. Trilobite beetles are no exception. While the females are easily recognisable – that incredible form is retained from when they were larvae [see Wikipedia neoteny] – the males look entirely different. They pretty much just look like plain old beetles, with long, winged bodies and a pair of thick antennae.