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DESCRIPTION OF THE PREPARATORY STAGES OF ARGE GALATHEA, Linn., WITH NOTES ON CERTAIN SATYRINÆ

Published online by Cambridge University Press:  31 May 2012

W. H. Edwards
Affiliation:
Coalburgh, W. VA.

Extract

Egg.—Sub-ovid, boradest on lower third, the base flattened; covered with a very slight rhomboidal network over the upper third, with low knobs at the angles; on the middle the network is still more slight, but the knobs are distinct, and on the lower third the knobs are minute and unconnected by lines; summit flattened, concave; the micropyle in centre of very fine network without knobs; colour bone-white. Duration of this stage about 20 days.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1889

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References

Page no 63* There is no such genus properly as Œneis, Hübner, There is a coitus of that name in Hübner's Verzeichniss, made up of mixed Chionobas and Hipparchia, and another one also made of the same two genera. By calling a coitus a genus, which it is not and was not intended to be, eliminating the Hipparchias from both these coitus, dovetailing together what remains, and calling the manufacture Œneis, with a label Hübner, 1816, we get what is called the genus. The makers of lists and catalogues about 1870 hit on this contrivance, and many European authors have come to adopt the name Œneis. In this country it has not met so favourable a reception. Perhaps the first definition of the genus Œneis (and a definition is indispensable to recognition) was given by Mr. Scudder, in Syst. Rev., 1872; but Chionobas, Boisduval, 1832, has the priority.

Page no 63 † This figure resembles the larva of Agrotis, all but the terminal segment, which is Bombycid.

Page no 65 * The accompanying plate shows the larva of Galathea, Fig. 1, copied from Buckler; Fig. 2 shows the attitude on the sod when near pupation; 3 and 4, and pupa; 5 and 6, the last segment and cremaster, dorsal and side view, with the group of terminal bristles; 7, the single bristle; 8, the thoracic spiracle protector.

Page no 65 * “Agrotis c. Nigrum feeds by night on the tops of red clover, hides in the ground by day, pupates in a loose cocoon on top of the ground beneath rubbish, or even without any cocoon; but most Agrotids pupate in the ground. All the larvæ of the genus have the habit of curling up.”—French. I sent Prof. French one of these plates. He writes:—“No. 10 is precisely as I have seen the Agrotis pupate.”

Page no 70 * The history of Semidea, as related by Mr. Scudder, mostly from his personal observations, is worth the price of the whole work; and I recommend every person interested in butterflies to make it a part of their library without delay. I differ with Mr. Scudder radically about many things, the restriction of genera, the resurrection of obsolete names, the use of Hübner's Coitus and Tentamen names for genera and families, but in other important and essential points this work of his is and will forever remain unapproachable. The welath of illustration is amazing, not only of the butterflies themselves, but of every part and organ of them, and what has never been attempted before except on a limited scale, the eggs and young larvæ are shown in greatly magnified and admirably executed figures. In any future system the eggs and young larvæ will form an important part. The time is coming when classification based on features of the imago alone will be thrown over, and the new arrangement will take consideration of all three of the preparatory stages. For these matters and the anatomical details, worked out with wonderful ability, and the life histories and distribution worked out with exceeding care, the Butterflies of New England will be a standard work, and no student can possibly get along without it. The edition is limited and the plates cannot be reproduced; therefore, I say to my friends, susbscribe without delay.

Page no 70 † Mr. Geikie, in the Great Ice Age, p. 135, is of the belief that the last glacial period terminated 80,000 years ago, and began about 240,000 years ago.