Bloatfly

“One of the Wasteland's most disgusting creatures, the Bloatfly shoots its maggots as projectiles, and often explodes upon death.” — Fallout 4 loading screen
Bloatflies are creatures found in the Commonwealth in 2287.
Background An example of the mutations caused by the Great War, the bloatfly is an evolution of either the Musca domestica (common housefly) or Tabanus genera of biting horse fly. Tentatively classified as part of the Tabanidae family in the order Diptera, class Insecta, phylum Arthropoda and kingdom Animalia by the Enclave, it is a major divergence from its evolutionary forebears.
Biology The standard bloatfly has a green and brown carapace and is significantly larger and more tenacious than its predecessors. Its size inhibits previous flight characteristics and agility, making it impossible to feed like pre-War horse flies did. Instead, it uses its engorged stinger and pupae gestating within its abdomen to incapacitate prey. The stinger is capable of launching mature larvae with a barbed sting at the end. These latch onto the target and deliver a neurotoxin capable of incapacitating larger prey, allowing the bloatfly and its larvae to feed.
Its neurotoxin is ineffective against humans and larger targets, causing only localized necrosis. As a result, the bloatfly serves as prey rather than predator among wastelanders who utilize its meat for food. Bloatflies can resort to scavenging in situations where prey or other sources of sustenance are scarce. It adapted to its enlarged size with a unique gland that enables it to balance and maintain speed despite its size. The gland itself may be toxic to consume.
Gameplay attributes Bloatflies attack at long range by peppering their prey with spine-bedecked larva launched from its abdomen. They tend to attack in groups, and may pose an additional threat based on their ability to attack from a distance. Bloatflies in the Commonwealth will crawl on surfaces and display more aggression than their counterparts in other wastelands. Although they generally attack at long range, at times they will fly close to their target. They can be found near bodies of water and throughout swampland, often attacking alongside bloodbugs and stingwings.
Variants
Bloatfly
Black bloatfly
Festering bloatfly
Glowing bloatfly

SPECIAL ABILITIES ƒ  FLYING: Bloatflies can move freely through the air. They ignore most ground-level obstacles and difficult terrain effects, and they can move through “empty” zones above the battlefield if desired. It must spend at least one minor action each turn moving, and if it is knocked prone it falls to the ground, suffering 3 DC Stun physical damage, +2 DC for each zone above ground level it was before it fell. ƒ  LITTLE: Bloatflies are smaller than most characters. The creature’s normal HP decreases to Body + 1⁄2 level (rounded up), but its Defense is increased by 1. Further, it is slain by any hit which inflicts an Injury. ƒ  IMMUNE TO RADIATION: The bloatfly reduces all Radiation damage suffered to 0 and cannot suffer any damage or effects from radiation.
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