A Case of Pseudo-mimicry

Abstract

IN Campbell Island, south of New Zealand, the breeze-fly (Helophilus campbellicus), one of the Syrphidæ, so closely resembles a blow-fly. (Calliphora eudypti) that when, in 1901, I captured a specimen of the first, which is rare, I thought it was the blow-fly, which is common; and it was not until I was transferring my captures to boxes that I found out my mistake.