The character Martin Benson is a reference to an unseen character in Seinfeld: The Pez Dispenser (1992). "Marty Benson" allegedly died after Kramer poured ice-cold Gatorade on his head after a baseball game.
When Barry and Adam reach their graduation ceremony, Barry says "That's a lot of pomp...under the circumstances". The music playing at the ceremony is the "Pomp and Circumstance" March No. 1 by Edward Elgar. This is a British military march often used in USA graduation ceremonies.
Bees in the real world have a very different biology than the bees in this movie. In the real world, male bees don't contribute at all to the honey-making process, which is done entirely by females. Male bees are drones, and just hang around the hive to mate with the queen. Drones have no stingers - that's the female reproductive organ and self-defense method - though bees do tend to die after stinging, as the stinger (which has tiny barbs on it) rips free of the body as the bee flies away. Also, male mosquitoes do not drink blood, only female mosquitoes do, as a protein source for their eggs, not as sustenance for themselves. Furthermore, insects have 6 legs, not 4. They have compound eyes, not simple ones.
The scene with Barry B. Benson in the pool is a take off on The Graduate (1967). In both scenes the title character's parent's ask what they want to do with their lives. Both characters are unsure what the future will hold. Both are also having a secret affair.