Ranunculaceae
Guides
Monophadnus
Monophadnus is a genus of sawflies in the family Tenthredinidae. Species in this genus are specialized herbivores of Ranunculaceae plants, particularly Helleborus species. Larvae sequester host plant secondary metabolites—including furostanol saponins and, in some species, phytoecdysteroids—into their haemolymph for chemical defense against predators. This sequestration represents a documented case of bioaccumulation, with ecdysteroid concentrations in larval haemolymph reaching levels thousands of times higher than in host plant tissues.
Polychrysia esmeralda
delphinium leaftier
Polychrysia esmeralda, commonly known as the delphinium leaftier, is a noctuid moth described by Charles Oberthür in 1880. The species name derives from Greek roots meaning "many" and "gold," referring to the adult's shining golden wing coloration. It occurs across northern North America and eastern Siberia, with larvae specializing on toxic Ranunculaceae host plants including monkshood and delphinium. The species is notable for its distinctive larval behavior of tying leaves together with silk and spinning a gold-colored cocoon within.
Pseudodineura
Pseudodineura is a genus of sawflies in the family Tenthredinidae. The genus contains approximately eight described species distributed across Europe and North America. Larvae of all species are leaf-miners in plants of the family Ranunculaceae. Some species are difficult to distinguish based on morphological characters alone, though each species appears to have a distinct COI barcode sequence.