Modern illustrations often include dragonfly or butterfly wings. Tadpoles are eaten by fish, beetles, dragonfly larvae and birds. The state insect is the green darner dragonfly. The general body plan of a damselfly is similar to that of a dragonfly. FireflyBSD has a similar logo, a firefly, showing its close relationship to DragonFly BSD. Ten new circular viruses have been isolated from dragonfly larvae. Compared to dragonfly larvae, the nymphs show little variation in form. Spyro is often accompanied by his best friend Sparx, a dragonfly. First appears in "Dragonfly in Amber". Seventeen species have been recorded including the emperor dragonfly. DragonFly BSD's HAMMER file system uses a modified B+-tree. StarBSD, FuryBSD, Darwin and DragonFly BSD. T helicopters replaced old Mi-4, Dragonfly, Whirlwind and Mi-2 helicopters. It is a free command-line implementation available for Linux and DragonFly BSD under BSD license. The woman shows him a birthmark on the child in the shape of a dragonfly.