Marginal cell elliptical, not longer than the first cubital and seperated from the costa at apex; the submarginal cells along the cubitus are of unequal length, the first and third subequal, the second either petiolate or narrowed into a point above; scutellum subbilobed, the axillae rounded or convex behind; abdomen short, above subglobose, beneath flat; body covered with a short dense fine downy pubesence resembling mold; abdominal segments 2-5 ornamented at their apical margins with a peculiar series of brown triangular emarginations impressed upon the densely pubescent surface; labial palpa 3-jointed, the first joint stout, longer than the first joint 2-3 united; claws with a tooth within. Type Melecta maculta Cresson.
Ashmead, William H., "Some New Genera of Bees" (1898). An. Paper 65.