About Temnostoma excentricum (Harris, 1841)
Temnostoma excentricum (Harris, 1841), commonly called the Black-spotted Falsehorn, is a species of syrphid fly. This species, also a type of hoverfly, can hold a nearly motionless position while in flight. Adult individuals of this species are often called flower flies, because they are frequently found on flowers, where they collect energy-giving nectar and protein-rich pollen. Adult Temnostoma excentricum are strong mimics of wasps. The larvae of this species burrow in moist decayed wood. This species has been observed across the United States and Canada, with its range covering Canada and the northern portion of the United States.
