chrysotoxum

Chrysotoxum is a genus of hoverflies, also known as syrphid flies, belonging to the family Syrphidae. These insects are characterized by their vibrant coloration, often mimicking wasps or bees, which serves as a form of Batesian mimicry to deter predators. The body shape of Chrysotoxum species is typically robust, with a flattened abdomen that features distinctive yellow bands or markings against a black background. This patterning is a key feature for identification within the genus.

The larvae of Chrysotoxum species are predatory, feeding on aphids and other small, soft-bodied insects, making them beneficial in natural pest control. Adult hoverflies are important pollinators, visiting a variety of flowers to feed on nectar and pollen. They are commonly found in meadows, gardens, and woodland edges where their food sources are abundant. The distribution of Chrysotoxum is primarily Palearctic and Nearctic regions.

Several species are recognized within the Chrysotoxum genus, each with subtle differences in morphology and geographical range. Common examples include Chrysotoxum festivum and Chrysotoxum bicinctum. Their flight patterns are generally rapid and agile, and they are often observed hovering in sunny spots. The genus is of interest to entomologists due to its role in ecosystems as both predators and pollinators, as well as its striking mimicry.