Oecophoridae and Hawaii in an attempt to control the European gorse ("Ulex europaeus"), and the defoliating hemlock moth ("Agonopterix alstroemeriana") has been used against "Conium maculatum" poison hemlock in the United States. Oecophoridae Oecophoridae (concealer moths) is a family of small moths in the superfamily Gelechioidea. The phylogeny and systematics of gelechoid moths are still not fully resolved, and the circumscription of the Oecophoridae is strongly affected by this. Also possibly included is the Peruvian species "Auxotricha ochrogypsa", described by Edward Meyrick in 1931 as the sole member of its genus. In the past, the family was circumscribed more widely and
Poison "gu" poison. Poison was also employed in gunpowder warfare. For example, the 14th-century Chinese text of the "Huolongjing" written by Jiao Yu outlined the use of a poisonous gunpowder mixture to fill cast iron grenade bombs. The term "poison" is also used in a figurative sense. The "[s]lang sense of "alcoholic drink" [is] first attested 1805, American English." (e.g., a bartender might ask a customer "what's your poison?") Figurative use of the term dates from the late 15th century. Figuratively referring to persons as poison dates from 1910. The figurative term "poison-pen letter" became well known in "...1913 by a