Malvaceae-specialist
Guides
Diadasia diminuta
globe mallow bee, globemallow chimney bee
Diadasia diminuta, commonly known as the globe mallow bee or globemallow chimney bee, is a solitary bee species in the family Apidae, tribe Emphorini. It is native to North and Central America and is primarily associated with flowers in the genus Sphaeralcea (globe mallows). The species has been documented exhibiting host-switching behavior, utilizing alternative mallow species such as Iliamna latibracteata when its preferred host plants are unavailable. Like other chimney bees, females construct distinctive turret-like nest entrances.
Oxycarenus hyalinipennis
cotton seed bug
Oxycarenus hyalinipennis, commonly known as the cotton seed bug, is a small seed-feeding true bug in the family Oxycarenidae. It is a polyphagous pest of Malvaceae, with Gossypium (cotton) as its preferred host. The species is native to the Mediterranean region and Africa but has expanded its range to the Caribbean in recent decades. It completes three to four generations per year under favorable conditions.
Ptilothrix
chimney bees, mallow bees
Ptilothrix is a genus of solitary, ground-nesting bees in the family Apidae, tribe Emphorini, with an amphitropical distribution in the New World. These bees range from 7 to 15 mm in body length and are distinguished by prominent, coarse scopae on their hind legs adapted for collecting large-grained pollen. Females excavate nests in hard-packed soil using water carried from ponds to moisten the substrate, constructing distinctive turreted or chimney-like nest entrances. The genus exhibits narrow pollen specialization (oligolecty), with species specializing on particular plant families including Malvaceae, Convolvulaceae, Onagraceae, Cactaceae, Pontederiaceae, and Asteraceae.