Their pre-adult stage , known as the subimago , may be even shorter - perhaps lasting just a few minutes before they moult into their adult form .
Some species have under an hour to mate and lay their eggs before they die .
eggs ' pre-adult stage , known as the subimago , may be even shorter - perhaps lasting just a few minutes before they moult into their adult form .
Some species have under an hour to mate and lay their eggs before they die .