Chemically-defended
Guides
Motyxia
Sierra luminous millipedes, motyxias
Motyxia is a genus of blind, cyanide-producing millipedes endemic to three mountain ranges in California. All 11 species exhibit bioluminescence, making them one of only three known bioluminescent millipede groups worldwide. Adults range 3–4 cm in length with 20 body segments and prominent lateral keels (paranota). The genus was established by Chamberlin in 1941 and belongs to the tribe Xystocheirini within the family Xystodesmidae.
Triprocris lustrans
Triprocris lustrans is a species of forester moth in the family Zygaenidae, described by William Beutenmüller in 1894. It belongs to the subfamily Procridinae, a group of diurnal moths often characterized by metallic coloration and aposematic warning patterns associated with chemical defenses. The genus Triprocris comprises North American species, and T. lustrans represents one of the less documented members of this group. Like other zygaenids, it is presumed to be chemically defended, though specific studies on this species are limited.