Artículos relacionados a The Entomologist's Record and Journal of Variation...

The Entomologist's Record and Journal of Variation (Classic Reprint) - Tapa blanda

Tutt, J. W.

 
9781332011339: The Entomologist's Record and Journal of Variation (Classic Reprint)

Sinopsis

Excerpt from The Entomologist's Record and Journal of Variation

In the Record, vol. I., p. 236, Mr. T utt has a note on this question more especially with reference to the British Vanessa pairing in spring or autumn. In our New Zealand species (vanessa gonerilla) the pairing, I think, invariably takes place in Spring, as I have frequently observed them in September and October in copula on and about the native nettles, such being the foodplant of their larva. But I have not seen, or known, this species to pair in the autumn - W. W. Smith, Ashburton, N. Z.

Imperfect development OF wings OF bombyx m0r1. - With regard to Mr. Mackonochie's article on Wing Development after Copulation, might I call his special attention to the fact that in the case quoted, the Specimen of Platypteryxfalcula was a female. Had it been a male, I very much doubt whether the development would have taken place, the latter being much more reduced than the former, never indeed long surviving the fulfilment of the purpose for which it was created. Several years ago I reared a number of larva of Bombyx mom, and many of the pupa hatching Simultaneously, several of the insects paired before developing their wings, after which, as far as I can remember, only a few females ever developed them at all fully - D. H. S. Steuart, 66, Albert Hall Mansions, W. February 27t/z, 1891. [i do not think sex in any way influences the development, which proceeds during copulation in both sexes. - ed.] retarded development OF wings.-i never saw an insect develop wings at the same rate of speed which Mrs. Bazett noticed in her Cbesias spartiata but no doubt every one will have remarked the quickness with which the wings on one side often develop, compared with the other side. Insects often wander about for a long time before the wings commence to expand; for instance, last year, I had an Acronycta (viminia) myricce which emerged two days before the wings commenced to develop, and after so long they developed perfectly. W. Reid, Pitcaple, n.b. February, 1891.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

"Sinopsis" puede pertenecer a otra edición de este libro.

Reseña del editor

Excerpt from The Entomologist's Record and Journal of Variation

In the Record, vol. I., p. 236, Mr. T utt has a note on this question more especially with reference to the British Vanessa pairing in spring or autumn. In our New Zealand species (vanessa gonerilla) the pairing, I think, invariably takes place in Spring, as I have frequently observed them in September and October in copula on and about the native nettles, such being the foodplant of their larva. But I have not seen, or known, this species to pair in the autumn - W. W. Smith, Ashburton, N. Z.

Imperfect development OF wings OF bombyx m0r1. - With regard to Mr. Mackonochie's article on Wing Development after Copulation, might I call his special attention to the fact that in the case quoted, the Specimen of Platypteryxfalcula was a female. Had it been a male, I very much doubt whether the development would have taken place, the latter being much more reduced than the former, never indeed long surviving the fulfilment of the purpose for which it was created. Several years ago I reared a number of larva of Bombyx mom, and many of the pupa hatching Simultaneously, several of the insects paired before developing their wings, after which, as far as I can remember, only a few females ever developed them at all fully - D. H. S. Steuart, 66, Albert Hall Mansions, W. February 27t/z, 1891. [i do not think sex in any way influences the development, which proceeds during copulation in both sexes. - ed.] retarded development OF wings.-i never saw an insect develop wings at the same rate of speed which Mrs. Bazett noticed in her Cbesias spartiata but no doubt every one will have remarked the quickness with which the wings on one side often develop, compared with the other side. Insects often wander about for a long time before the wings commence to expand; for instance, last year, I had an Acronycta (viminia) myricce which emerged two days before the wings commenced to develop, and after so long they developed perfectly. W. Reid, Pitcaple, n.b. February, 1891.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Reseña del editor

Excerpt from The Entomologist's Record and Journal of Variation

Plate VII. Eggs of Viminia. - The eggs of Viminia have a close resemblance to each other; this is brought out in the plate perhaps rather too strongly, owing to the circumstance already alluded to that in warm weather, and to some extent at all times, the eggs possess their most typical and perfect colouring for only a short time, and the artist has not in all instances seized this moment. There is therefore something to desire in nearly all these figures. It is, however, to be borne in mind, that these eggs are perhaps as difficult subjects for pen and pencil as it is possible to desire, and that the success, though qualified, is not meagre, but the chief cause for regret is in not seizing the moment when the egg is at its best to make the drawing. This is most notable in the case of auricoma, fig. 4, which has a greater definiteness of marking than the other species, approaching in this respect the egg of alni, to which it has considerable resemblance. Rumicis also has as its most definite point a distinctly paler area round the dark summit, giving a characteristic dotted aspect to the egg. Curiously this character has been well seized in the drawing of venosa, where it is less prominent. In the case of venosa the crenulations of the ribs have been drawn more distinctly than in the others, which they are not in reality, except that the ribs being fewer they are on a slightly larger scale and therefore more evident, but they do not, as shown, form a distinct system of transverse ribs. The groups showing imbricated method of laying is very correctly displayed in 3a, venosa.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

"Sobre este título" puede pertenecer a otra edición de este libro.