Sting (Middle-earth)
Sting has the magical ability to detect orcs or goblins nearby, glowing blue in their presence, as it did when the Fellowship encountered orcs in the mines of Moria. Tolkien establishes this as a common property of First Age Elf blades, particularly those forged in Gondolin. Sting is also exceptionally sharp. Bilbo manages to thrust it without effort deep into a wooden beam at Rivendell. Frodo also wounds a troll in Moria, after Boromir notches his own sword with his attempt. Sam uses Sting to cut through the giant spider Shelob's strong webs with ease, and also wound the spider, driving it away from the paralyzed Frodo.
Smaug (genus)
The genus "Smaug" was named for the character Smaug, in J. R. R. Tolkien's "The Hobbit":
Smaug is the name of the dragon encountered by Bilbo Baggins, the protagonist of J.R.R. Tolkien's book "The Hobbit". According to Tolkien the name is derived from the Old German verb "smeugen" – to squeeze through a hole. Like the type species, Smaug lived underground and was heavily armored. Appropriately Tolkien was born in the Free State province, South Africa, the core area of distribution of the type species. The name is masculine.