Contributions to an Insect Fauna of the Amazon Valley: Lepidoptera, Heliconidae (Classic Reprint) - Couverture souple

Henry Walter Bates

Couverture souple

ISBN 10 : 1333379056 ISBN 13 : 9781333379056

Editeur : Forgotten Books, 2018

Synopsis

Excerpt from Contributions to an Insect Fauna of the Amazon Valley: Lepidoptera, Heliconidae

There is a very wide dissimilarity in minor points and in general appearance between the Asiatic set of forms and the American: the only Old World genus which at all approaches the New World group is Hmnadryas; but the shape, colours, and neuration of the wings show that it has no close affinity with them. The two sets of forms seem to agree; however, in habits, and apparently occupy the same sphere in the economy of nature in their respective countries. Mr. Wallace, who has had the good fortune to observe both in their native abodes, says, the habits of the South Asian Euplaece (the most numerous genus) are precisely those of the Helicom''daz. The Asiatic Dcmaidce are mostly above the middle size, and include some of the largest Butter?ies known; their American equivalents are in general below the middle size. Both are extremely prolific or abundant in individuals, and are amongst the most characteristic productions of their respective countries. Each set, also, are the objects of numerous mimetic resemblances on the part of other Lepidopterous insects of their own region belonging to different families, - the Asiatic mimickers being modelled after the Asiatic sm''dce, and the American after the American members of the same family.~ The entire dissimilarity of the two sets of forms would seem to teach us that there can have been no land com munication east and West between the tropical parts of Asia and America since they first came into existence, and therefore that the great continents must have remained separate in those quarters from a very remote epoch to allow for such an extensive independent development of forms. They are both strictly confined to the hottest parts of their respective hemispheres. In America they are not found beyond the northern tr0pic, nor much further south than 30° 8. Lat. They are not known to occur so far from the equator as either tre

A propos du livre

Présentation de l'éditeur

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Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2018
• Langue: anglais
• ISBN 10: 1333379056
• ISBN 13: 9781333379056
• Reliure: Broché
• Nombre de pages: 75
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