. Elementary entomology . Fig. 370. A syrphus-fly (J'olucella erecta) which resembles a bumble-tee and is an inquiline in bumble-bees' nests (after S. J. Hunter); and a typical syrphus-fly (Syrphits rihesii)

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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912