Pipiza bellula Williston, 1891

Classification and descendants

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Hull, F.M. (1949) Studies upon Diptera in the British Museum. The Annals and Magazine of Natural History (12) 2: 727-746.

Williston, S.W. (1891) Fam. Syrphidae. Biologia Centrali-Americana. Zoologia-Insecta-Diptera 3: 1-56 [1891.12.??].