Wasps are often confused with bees. Some look very similar to bees, while others have more obvious wasp-like features including a long, thin “waist” and bright yellow or orange markings. Wasps are generally thinner and less hairy than bees. Wasps do not actively collect pollen, but will visit flowers in order to drink nectar. They can thus pollinate, but for most plant species, they are not as efficient as bees.