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Published online by Cambridge University Press: 31 May 2012
A few of the members of my zoology class and myself have taken here 821 specimens of Catocalæ in nine consecutive days, collecting from August 16th to August 26th inclusive, omitting Saturday and Sunday, during which no collecting was done. These were all taken in the afternoons, usually from one to four o'clock, by whipping the trees, and all within easy walking distance from the University.