Alkaloid
Guides
Estigmene acrea
Salt Marsh Moth, Acrea Moth
Estigmene acrea, commonly known as the salt marsh moth or acrea moth, is a native North American moth in the family Erebidae. The species is notable for its highly variable caterpillar coloration, ranging from pale yellow to dark brown or black, and its unique relationship with pyrrolizidine alkaloids—compounds it can detoxify and convert into sex pheromones. Adults display striking sexual dimorphism: males have yellow-orange hindwings while females have white hindwings, with both sexes bearing black spots. The species exhibits unusual mating behavior including male lek formation and female calling.
Gosodesmus
pink feather boa millipede
Gosodesmus is a monotypic genus of platydesmidan millipedes described by Ralph V. Chamberlin in 1922. The sole species, Gosodesmus claremontus, is endemic to California and notable for its bright pink to coral coloration. The species has been the subject of chemical research following the 2020 discovery of a novel alkaloid, gosodesmine, in its defensive secretions.
Rothschildia lebeau
Lebeau's Silk Moth, Forbes Moth
Rothschildia lebeau is a giant silkmoth in the family Saturniidae, distributed from the Lower Rio Grande Valley through eastern Mexico to Brazil. Adults are short-lived and do not feed, relying on fat reserves accumulated during larval development. The species exhibits a life history tradeoff between larval survival and adult body size based on host plant quality, with larger males showing higher mating success.
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