Psylarva: Wiggler Pokemon, 2'0", Bug/Psychic

Evolves via Friendship into

Probsquito: Mosquito Pokemon, 3'0", Bug/Psychic

Psylarva and Probsquito feed off the auras of other creatures. In small numbers they're harmless, but a large enough swarm can leave their host feeling mentally and emotionally drained. The good thing is, they move on in search of a new host when this happens, giving their poor victim a chance to recover. Psylarva and Probsquito are particularly attracted to humans with a cheerful disposition. More often than not this ends with the human befriending the Pokemon and adding it to their team!