Which specialized group of wasps actively gathers pollen inside their bodies, acting as effective pollinators for plant families like *Penstemon*?
Answer
Masarinae (pollen wasps)
While most wasps do not efficiently pollinate due to a lack of specialized hairs suited for pollen collection, certain groups have evolved this capability. The Masarinae, specifically referred to as pollen wasps, actively collect both nectar and pollen within their bodies. This behavior allows them to serve as effective pollinators for specific plant families, such as *Penstemon*. This contrasts with other specialized mutualisms, like that of the fig wasps (Agaonidae), whose role is exclusive to fig trees.
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