Melangyna (Austrosyrphus) collatus is a species of hoverfly found throughout Australia.Walker, F. 1852. Diptera. Part III, pp. 157-252, pls. 5-6. In [Saunders, W. W. (ed.)], Insecta Saundersiana: or characters of undescribed insects in the collection of William Wilson Sauders, Esq., F.R.S., F.L.S., &c. Vol. 1. Van Voorst, London. 474 pp.
Description Head yellow with black hairs and dark red eyes. Dark legs with yellow knees. Four large, triangular spots on the abdomen, and a bicoloured scutellum.
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