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The Entomologist's Monthly Magazine, Vol. 22 (Classic Reprint)

  • Fester Einband
  • 310 Seiten
Excerpt from The Entomologist's Monthly Magazine, Vol. 22(3rd.) Under the name of saturnana, 2 ?from the Isle of Wight, and 1 fro... Weiterlesen
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Excerpt from The Entomologist's Monthly Magazine, Vol. 22

(3rd.) Under the name of saturnana, 2 ?from the Isle of Wight, and 1 from Hungerford, Wilts, smaller than the last two species with narrower wings, and with smaller scales. These are quite devoid of the costal fold.

(4th.) Also under the name of saturnana, 1 from Teignmouth, and 1 from Darlington, having the costal fold quite distinctly, very slightly larger than ISTo. 3, and rather more brightly clothed with yellowish scales and leaden lines.

(5th.) Plumhana. Very numerous specimens from many localities, all the males destitute of the costal fold. These are of the same size as Nos. 3 and 4, with rather broader wings and fewer yellowish scales.

(6th.) Flumhagana, - Many specimens from various places, with narrower wings than any of the preceding, and brighter metallic lines, but variable in size, and in abundance of the yellow scales, all the males having the costal fold, except

(7th.) Under the name of plumhngana, 2 from Galway, quite like the darker plumhagana in form and width of wings, but without the costal fold. Twenty-five years ago I took many specimens of this form in the County Galway, but damp, from many journeys and moist climates, injured them, so that the rest were destroyed.

(8th.) Among my continental types, 3 from Prof. Zellcr, labelled saturnana, two of them having also SeinemanrCs label on the pins, one of which last has the costal iolmost distinctly, and the other two are as distinctly destitute of it. Otherwise these three are absolutely alike, they cannot be separated by any other character that I am able to see. They resemble Nos. 1 and 2 pretty closely, but are yellower.

In the classification adopted by Wilkinson these species so closely allied that they can only be separated by a slight structural character, hardly visible to the naked eye, and obtaining only in one sex would be placed, not only in separate genera, but in distinct families, widely separated from each other. It is desirable, therefore, to examine more closely into the value of this peculiarity of the males of so many species of Tortrices the costal fold which is entirely ignored in the arrangement of Guen6e and Doubleday, but which forms one of the bases of classification in the arrangement followed on the continent, and was regarded by Wilkinson as of such vital importance, that he instituted the family Plicata solely to receive all the species favoured with this appendage.

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Produktinformationen

Titel: The Entomologist's Monthly Magazine, Vol. 22 (Classic Reprint)
Autor:
EAN: 9780484407908
ISBN: 0484407902
Format: Fester Einband
Anzahl Seiten: 310
Gewicht: 570g
Größe: H229mm x B152mm x T21mm
Jahr: 2017