Appearance
Interocular space matte black. Lunule soft black. Antennae and palps black. Mesonotum brilliant black. Acrostichal bristles sparse and in 7-8 rows. Legs brownish black all the knees yellow. Haltere knob whitish yellow. Female: abdomen black, les the two last segments clear brown. Male: The base of the abdomen more or less dark, the rest yellow. Length: 2,5–3 mm.
Behavior
The larva mines "Solidago", "Aster", "Baccharis", and "Erechtites".References:
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