Stingwings were created by radiation at some point between the start of the Great War and 2287. They are known to build large clusters of nests on the ground and walls, with nests themselves oozing a bright yellow sap akin to honey from their entrances. When these nests are approached, multiple stingwings will emerge to fiercely defend them from potential threats.
Stingwings appear to be a large, mutated form of scorpionfly, with extended mouthparts and a scorpion-like tail, ending in a bulbous and deadly sting. They can often be found in swarms, and their erratic flying coupled with a venomous sting makes them formidable opponents.
Due to radiation, stingwings have developed a venomous sting not found on their modern, unmutated counterparts. Also, unlike the modern-day Mecoptera order of insects, stingwings appear to exhibit no sexual dimorphism, as only male scorpion-flies wield the appendage which grants them their name.
Fragile but agile, the stingwing can be taken down in relatively few shots even at mid-level. It is, however, extremely fast, hits fairly hard, and fond of a "dive-bombing" tactic where it circles the player character and rushes in to hit once before returning to circling. They are often encountered in groups of up to five and can be a harsh problem due to their speed and erratic movements, which can combine to make them very hard to hit without V.A.T.S. Another tactic the stingwing tends to use is to rush at the player character in single file.
The most common form of stingwing found throughout the Commonwealth. They are usually found in groups, although a few can be found alone.
Chasers can be considered as the toughest of the stingwing variants. They are fast, hit hard, and are especially dangerous when encountered in groups, as they will attack together. Once the Sole Survivor reaches higher levels, they will spawn in various areas.