The Mosquito is a hostile flying mob that sucks blood from the player and other mobs with its long proboscis and has a larval form allowing it to spread to other biomes.
A Poisonous Mosquito is a green variation of the regular mosquito exclusively appearing in mangrove swamps.
Spawning[]
The mosquito only normally spawns in swamps, but larva will spawn in all warm and temperate biomes (excluding marine biomes) on Hard difficulty mode, and they'll eventually mature into adult mosquitoes if not destroyed.
Adult poisonous mosquitos spawn in mangrove swamps, along with their larva, over water blocks if there is an air space of 1 above it.
Both variants require a light level of 7 to spawn. Mosquitos only generate upon world generation, and only respawn if growing out of its larva form.
In Minecraft 1.18 and later versions, mosquitoes spawn in mob sieges, but only in swamps and jungles. Poisonous mosquitos do not participate in mob sieges.
Behavior And Properties[]
Mosquitoes are hostile towards all non-insect mobs (excluding f.e. bees, other mosquitoes or butterflies) within 16 blocks of them and attack them. They sting once, then retreat to safety for a short amount of time before returning after about 20-40 seconds, employing a similar tactic to baby zombies. Stinging a target will cause its blood sac volume to increase by 1. Mosquitoes can sting up to 3 times before being full. Mosquitoes that are full will be passive towards all creatures, even mobs attacking them, and will prefer fleeing.
Once they have aquired blood, they will bring it to the nearest larva in a 32x32x25 radius to speed up the growing process to turn it into an adult mosquito. If a mosquito cannot find any larvas within, it will instead consume it themselves, healing its whole health back.
Mosquito larva are aquatic mobs, but will die if they wander into an any variant of ocean, instead preferring fresh water. The larva are especially fond of swamps, where they spawn on every difficulty mode except peaceful (being despawned by peaceful mode despite doing no damage). Mosquito larva need a similarly low level of light compared to other hostile mobs, but it is much harder to light pools of water than areas of land, making them a bit more difficult to deal with using only torches. On hard mode, Torch Moths may also disrupt player attempts to prevent their appearance.
Mosquitoes can be staved off by covering open bodies of water, lighting useful water sources with glowstone or other viable light sources, and hunting them down manually. Goldfish as well as cod, salmon and tropical fish will hunt down mosquito larva and eat them, but cannot harm the adult mosquitoes.
Due to being aquatic mobs, mosquito larva are affected by the Impaling enchantment and take more damage from weapons enchanted with it. Adult mosquitoes are not counted as aquatic mobs.
Both larva and adult mosquitoes are also counted as arthopods and thus recieve more damage from weapons enchanted with Bane Of Arthropods.