Appearance
Kakuna is a yellow Pokémon shaped like an insect cocoon. Its head is domed, its black triangular eyes have glowing white pupils, and two scythe-like arms stick out.

#014
Cocoon Pokémon
Kakuna is a Bug / Poison-type Pokémon, No. 014 in the National Pokédex, introduced in Generation 1 (Kanto region).
« Able to move only slightly. When endangered, it may stick out its stinger and poison its enemy. »
Kakuna is a yellow Pokémon shaped like an insect cocoon. Its head is domed, its black triangular eyes have glowing white pupils, and two scythe-like arms stick out.
It barely moves while waiting to evolve, often hanging from branches on long silk threads. It evolves from Weedle, then into Beedrill.
It debuts with several Kakuna in a hive that evolve into Beedrill to defend it. The series shows it evolving more often than any other Pokémon.
Atsuko Nishida designed it after the pupa of a bee or wasp. Kakuna appears to be a corruption of cocoon.