Opening the text

On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of GeneraWollaston, Thomas Vernon

Science

On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of Genera

Name: On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of Genera
Author: Wollaston, Thomas Vernon

Wollaston, Thomas Vernon

Insects; Variation (Biology)

Tropics, exuberance of the, 27, 28;
    relative proportions of the insect tribes within the, 28, 29.

  _Tychius_, always apterous in Madeira, 82.

  Unity, indicated in the organic creation, 179, 180.

  _Vanessa Atalanta_, Linn., has a different aspect in N. America, 34;
    perhaps a recent introduction into Madeira, 74.

  _---- Callirhoe_, Fabr., smaller in Porto Santo than in Madeira, 73.

  Variation in the Insecta, a matter of experience, 7, 8, 15;
    probable from analogy, 15;
    perhaps indicated in every individual, 16, 17, 18;
    restricted, 35.

  Variety, definition of the term, 4.

  _Velia_, on the development of the wings of, 100.

  Waterhouse, Mr., his opinion concerning generic types, 172.

  Westwood, Mr., on _Papilio Machaon_ from the Himalayas, 32;
    on American specimens of _Lycaena Phloe as_, 34;
    on the effect of heat in developing the wings of insects, 44;
    on a winged state of _Choreius ineptus_, 44;
    on the development of the wings in _Delphax_, 45;
    on a winged state of _Cimex lectularius_, 45;
    on _Aphelocheirus aestivalis_, 100;
    on the development of the wings of the _Hydrometridae_, 100;
    on _Cimex apterus_, 100;
    on _Prostemma guttala_ and _Coranus subapteras_, 101;
    on the development of the wings of _Lygaeus brevipennis_, 101.

  Whewell, Dr., on the natural causes which science has to investigate,
      191.

  White-Cabbage Butterfly, varies in Nepaul and Japan, 34.

  Winds, the effects of, in the diffusion of insects, 148.

  Wings of insects, subject to undue development in hot seasons, 43;
    liable to become gradually obsolete in islands, 81;
    more variable than other organs, 97.

  _Xenostrongylus_, its geographical distribution, 124;
    common to Madeira and Sicily, 139.

  _Zargus pellucidus_, Woll., variety of, on one of the Madeira Islands,
      88.

FINIS.

Printed by Taylor and Francis, Red Lion Court, Fleet Street.

Lately published, by the same Author, in large 4to (with Thirteen
Coloured Plates), price L2 2_s._,

            INSECTA MADERENSIA;
                  BEING
         AN ACCOUNT OF THE INSECTS
                   OF
               THE ISLANDS
                   OF
           THE MADEIRAN GROUP.

London: JOHN VAN VOORST, 1, Paternoster Row.

Transcriber's Notes:

Inconsistent/archaic spelling and punctuation left as in original.

Public-domain text, read in full here on John Shaqi.

Opening the text

On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of GeneraWollaston, Thomas Vernon

Science

On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of Genera

Wollaston, Thomas Vernon

Insects; Variation (Biology)

Tropics, exuberance of the, 27, 28;
    relative proportions of the insect tribes within the, 28, 29.

  _Tychius_, always apterous in Madeira, 82.

  Unity, indicated in the organic creation, 179, 180.

  _Vanessa Atalanta_, Linn., has a different aspect in N. America, 34;
    perhaps a recent introduction into Madeira, 74.

  _---- Callirhoe_, Fabr., smaller in Porto Santo than in Madeira, 73.

  Variation in the Insecta, a matter of experience, 7, 8, 15;
    probable from analogy, 15;
    perhaps indicated in every individual, 16, 17, 18;
    restricted, 35.

  Variety, definition of the term, 4.

  _Velia_, on the development of the wings of, 100.

  Waterhouse, Mr., his opinion concerning generic types, 172.

  Westwood, Mr., on _Papilio Machaon_ from the Himalayas, 32;
    on American specimens of _Lycaena Phloe as_, 34;
    on the effect of heat in developing the wings of insects, 44;
    on a winged state of _Choreius ineptus_, 44;
    on the development of the wings in _Delphax_, 45;
    on a winged state of _Cimex lectularius_, 45;
    on _Aphelocheirus aestivalis_, 100;
    on the development of the wings of the _Hydrometridae_, 100;
    on _Cimex apterus_, 100;
    on _Prostemma guttala_ and _Coranus subapteras_, 101;
    on the development of the wings of _Lygaeus brevipennis_, 101.

  Whewell, Dr., on the natural causes which science has to investigate,
      191.

  White-Cabbage Butterfly, varies in Nepaul and Japan, 34.

  Winds, the effects of, in the diffusion of insects, 148.

  Wings of insects, subject to undue development in hot seasons, 43;
    liable to become gradually obsolete in islands, 81;
    more variable than other organs, 97.

  _Xenostrongylus_, its geographical distribution, 124;
    common to Madeira and Sicily, 139.

  _Zargus pellucidus_, Woll., variety of, on one of the Madeira Islands,
      88.

FINIS.

Printed by Taylor and Francis, Red Lion Court, Fleet Street.

Lately published, by the same Author, in large 4to (with Thirteen
Coloured Plates), price L2 2_s._,

            INSECTA MADERENSIA;
                  BEING
         AN ACCOUNT OF THE INSECTS
                   OF
               THE ISLANDS
                   OF
           THE MADEIRAN GROUP.

London: JOHN VAN VOORST, 1, Paternoster Row.

Transcriber's Notes:

Inconsistent/archaic spelling and punctuation left as in original.

Public-domain text, read in full here on John Shaqi.

On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of Genera

On the Variation of Species, with Especial Reference to the Insecta: Followed by an Inquiry into the Nature of Genera

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