Stinger

Combat
A flying glass cannon with low Health growth, exceptional Strength growth and attacks that Pierce. They even get Sting to attack at range. They're relatively effective against grouped enemies.

Otherwise they're nothing more than a nuisance. Not worth a party slot.

Moneymaking
They can be sold for 100 gold at Medium size and for 300 gold at Enormous size. Every level above 1 additionally increases their price by 5%.