multiple times between 1963–1997. Turbinicarpus gielsdorfianus, a species of plant in the family Cactaceae. Virginia round-leaf birch (Betula uber), a rare species of tree in the birch family; first discovered in 1914, thought to be extinct until 1975 Yellow fatu (Abutilon pitcairnense), a species of plant in the family Malvaceae. The plant was once considered extinct until 2003. Cultivars Judean date palm, found as a seed dated from between 155 BC to 64 AD, replanted in 2005. Montreal melon, a common plant in the 19th century that disappeared but was rediscovered after a couple of generations in 1996. Sponges Neptune's Cup (Cliona patera), a species of demosponge in the family Clionaidae; thought to be extinct from overharvesting in 1908, rediscovered in 2011. Annelids Giant Palouse earthworm (Driloleirus americanus), a species of earthworm belonging to the genus Driloleirus; thought extinct in the 1980s, but found again in 2006. Insects Lord Howe Island stick insect (Dryococelus australis); a species of stick insect in the family Phasmatodae; thought to be extinct by 1930, rediscovered in 2001. Canterbury knobbed weevil (Hadramphus tuberculatus), in the family Curculionidae; first discovered in 1877, last seen in 1922 until it was rediscovered in 2004. The cloaked bee (Pharohylaeus lactiferus); a bee in the subfamily Hylaeinae which had not been found since 1923 and was rediscovered in 2018. Lestes patricia, a species of damselfly discovered in 1924. Only a single male specimen was collected during the discovery. The species was left unseen until 2020 where a colony of them was rediscovered. Megachile pluto, the world's largest bee. Not seen after 1858, when it was first collected, until it was rediscovered in 1981. Dinosaur ant (Nothomyrmecia macrops), a rare genus of ants consisting of a single species, discovered in 1931, not seen again until 1977. Petasida ephippigera, a species of grasshopper in the family Pyrgomorphidae; thought to be extinct from 1900 until 1971, when a single male specimen was spotted, followed by a breeding pair shortly afterwards. Schizodactylus inexspectatus, a dune-inhabiting cricket from Turkey, known from a single specimen seen in 1901 and presumed extinct until it was found again in 2005. Bone skipper fly (Thyreophora cynophila), in the family Piophilidae; first described (1794) and last seen in Central Europe (1850), before being photographed in Spain in 2009. Pitt Island longhorn beetle (Xylotoles costatus), is a species of beetle in the family Cerambycidae; last seen on Pitt Island in 1910,