on this segment are variable in width. The fourth and fifth segments have a very narrow black fascia of uneven width along the base, connecting with the carina, with the fourth having a black spot in the center and a longer one towards each apical corner, and the fifth having three black spots in a triangular form. All the black markings on the dorsum and the yellow on the apical part of the last three segments are covered with numerous, short, black, bristly hairs. Wings The wing microtrichia is well-developed, and the wing vein R4+5 is clearly dipped into the cell r4+5. The wings are faintly cinerous, with the costal edge lutescent on the basal half and brown on the apical half. Legs The legs are mostly yellow, The tarsi are reddish. The front and middle femora have a brownish infuscation at the base, while the hind femora are brownish on the apical half, with the tip being yellow. References Insects described in 1849 Taxa named by Francis Walker (entomologist) Diptera of Europe Diptera of North America Hoverflies of North America Syrphinae