Meromacrus acutus
Meromacrus acutus, the Carolinian elegant, is a species of syrphid fly in the family Syrphidae. This uncommon species is distributed in the Eastern United States and South America (see map). Notable for the black and yellow pattern mimicking wasps.[1][2][3] Hoverflies get their names from the ability to remain nearly motionless while in flight. The adults are also known as flower flies for they are commonly found around and on flowers, from which they get both energy-giving nectar and protein-rich pollen. The larvae are aquatic filter-feeders of the rat-tailed type. They are found in rot holes of trees.[4] DescriptionFor terminology see Speight key to genera and glossary
Length 13–18 mm (0.5–0.7 in)
The front (frons) has a broad black stripe and has yellow pile on the sides below the ocelli. The face is yellowish red, thickly clothed on the sides with whitish pollen and bright yellow pile. A broad median stripe and shining black cheeks mark the face. Sometimes there is a reddish broad black facial stripe. The antennae are reddish brown on raised antennifer with orange arista: The posterior orbits have abundant short yellow pile with a gap of black at the ocellar triangle.  .jpg)
The thorax is shining black with vivid golden yellow markings.
The abdomen is black and yellow.
Wings are yellowish basally with the front edge dark smoky black, filling out the sub-costal, the marginal, submarginal, outer part of first basal, and the anterior part of first posterior cells. Notable venation: spurious vein (sv) present, R4+5 looping into r4+5, cell r2+3 is closed.
The legs are light reddish yellow except the hind femora is mostly black. [6][7]
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