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Head rust colored; margins of abdominal segments black. Antennae elongate and dark; thorax yellow and hump-backed with laterally lined stripes (Fabricus 1822). Halteres have dark brown clubs with apical edges paler (Dietz 1918). Legs slender and yellow with blackish hairs and tibiae blackish at the apex. Wings almost transparent with a grayish tint and sparsely covered with hair, veins costa, subcosta, radial and all veins beyond the cord, with the exception of those limiting 1st medial 2, stigma pale brown (Dietz 1918). Wing veination as in figure. Male, length of body: 10.5 mm, wing span:10.5 mm.