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A NATURALIST'S BIOGRAPHY.
Iris,L., disporting itself among theflowersnear the " Wilderness " in the Lower Arboretum, towards the north end of Ipswich. My attention was attracted by the Butterfly's large size ; and now I am entirely satisfied respecting its identity, for I obtained a clear view of the wing-markings and at once compared them with examples in this Museum. I could detect no purple sheen on its wings.—H. E. P. SPENCER, The Museum, Ipswich ; 20 October 1933. [The specimen was surely a female on account of the lack of purple sheen, its lowflightand lateness of its occurrence, for July is the usual month of perfect existence. Eighty vears ago Purple Emperors were too " common in oak woods in various parts of the County " (Dr. Bree in Nat. 1857, p. 256) to be worth localising ; they grew rarer (Entom. iv, p. 120), and during July 1859 were localised in Bentley Woods (Fison in Ent. Wkly. Int. vi, p. 133). By 1890 the species was still considered not uncommon near Ipswich ; though the sole one or two of which we have exact data was seen by us on the 8th and netted on 24th July 1893 in Bentley Woods, where it continued to occur round the tops of tall oaks during a few succeeding summers, but has not been noticed anywhere in Suffolk of recent years.—Ed.]
Of how difficult it frequently is to be conscientiously positive of the identity of even the most conspicuous insects, when flitting about on the wing, I have had recent proof by experience. One day in June 1931, a peculiarly large and broad Butterfly was observed, that I instantly thought and still think must be Anosia (Danaus) plexippus, Linn., hovering about theflowersin Framlingham garden. To rush indoors for a net took no more than a moment, but I was unable to confirm the suspected determination by capturing the specimen for examination. However, our record of A. plexippus (Trans, i, p. 30), which I had forgotte at least partially removes my hesitancy in placing so inconclusive an Observation upon record, No less than twenty specimens (Entom. 1933, p. 241) have been noted in Britain during the present year.—C. H. S. VINTER.
THE FISHES OF SUFFOLK. BY DR. DUDLEY W. COLLINGS, M.B., M.R.C.S., F.Z.S.
sole county List of Pisces, that by J. T. C u n n i n g h a m printed in the 1911 Victoria History of Suffolk, enumerates 119 species but includes a good many to which we then had no better claim than the fact that they had occurred off southern Norfolk. The author was not a local man, and relied almost entirely upon the Norfolk Naturalists' Society for his records : adding, for the THE