It would help with the variety of course! Since we can't have all Lizardmen here. Seriously, we have at least 7 reptiles I can think of off the top of my head. The Kobold, The Komodo Jock, the Rogue, the pirate, The Dragon, The Turtle Alchemist and the Naga warlock. 8 if you include the robot. So... Yes, an insect would be nice to add to the pile...
How could I forget the T-Rex bros! That's 10!!! 10 hunky lizards.