Agonopterix alstroemeriana alkaloids obtained from its host plant. They also have the advantage of local predators being less familiar with the species because they are non-native. The caterpillar may also benefit from the toxic alkaloids present in the poison hemlock host plant because they may increase the ability of "A. alstroemeriana" to recognize "Conium maculatum" as the correct location for oviposition. They pupate for 2 weeks in the soil, usually from late May to early June. The color of pupa is red-brown, with fine hairs densely located. The length of pupae is approximately 6–7 mm. After pupating, the moths emerge from the
Hystrix (plant) Other species placed in "Hystrix" have genomes more closely resembling those of "Leymus" species, and are better placed in that genus. Currently accepted transfers include: Hystrix (plant) Hystrix was a formerly recognized genus of grass (family Poaceae). The genus "Hystrix" was created in 1794 by Conrad Moench for the species described as "Elymus hystrix" by Carl Linnaeus in 1753. Moench considered that "E. hystrix" was sufficiently distinct to be placed in a separate genus as "Hystrix patula"; the genus was to be used for species without glumes or with long setaceous glumes. Subsequently a number of other grass species were