Saprotrophic-larvae
Guides
Spilomyia foxleei
Foxlee's Hornet Fly
Spilomyia foxleei is a species of syrphid fly (hover fly) in the family Syrphidae, first described by Vockeroth in 1958. It belongs to a genus renowned for its striking mimicry of yellowjacket wasps, employing visual, behavioral, and acoustic deception. The species occurs in western North America, with documented records in British Columbia, Canada, and the Pacific states of the United States.
Xylota segnis
Orange-belted Leafwalker, brown-toed forest fly, lazy wood fly
Xylota segnis is a common Palearctic and Nearctic hoverfly distinguished by its black abdomen with a prominent orange or yellowish-red patch on tergites 2 and 3. Adults are notable for their sedentary behavior, often resting motionless on leaves rather than actively flying. The species is polyvoltine with up to three generations annually and has been observed from April through September. Larvae develop in decaying tree sap and have also been recorded from decaying human remains.