Just a quick reference I made for myself. These guys will appear in my story soon.

"Azulians have three genders, which all take part in their reproduction process; the third gender, called adaptator, must merge with the male subject to adjust his genetic material and make it compatible with the female receptor; this allows them to breed with other species. Azulians are also one of the few alien races known to have a religion: they believe in Zwn, a superior being who created them to bring joy and peace to the whole universe."