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
What Is and What Should Never Be descending riff [of "What Is and What Should Never Be"] is amazing: It's like a bow is being drawn back, and then it releases. The rhythm of the vocals is almost like a rap. It's insane — one of their most psychedelic songs." This was also one of the first songs recorded by the band for which Robert Plant received writing credit. According to rock journalist Stephen Davis, the author of the Led Zeppelin biography "Hammer of the Gods: The Led Zeppelin Saga", the lyrics for this song reflect a romance Plant had with his wife's younger sister. "What Is