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Proc. Ent. Soc. Wash
1926
The occurrence of an American genus in Europe and a European genus in America (Diptera: Syrphidae, Sepsidae)
R C Shannon
Published in Proc. Ent. Soc. Wash, in 1926, in volume 28, pages 112-114
Date published:1926
BHL:
16137522
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