Unadorned Bog Fly

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Parhelophilus obsoletus (Loew, 1863), the Unadorned Bog Fly, is a fairly common species of syrphid fly observed across Canada and the northeastern and central United States. Hoverflies can remain nearly motionless in flight. The adults are also known as flower flies for they are commonly found on flowers, from which they get both energy-giving nectar and protein-rich pollen.

Las moscas Helophilus son un género diverso de moscas de tamaño moderado a grande de la familia Syrphidae. Mimetizan a las abejas. Las larvas se alimentan filtrando partículas de aguas ricas en materia orgánica.