Image d'archive à partir de la page 136 de American spiders et leur rotation. American spiders et leur travail de bobinage. Une histoire naturelle de l'orbweaving spiders des États-Unis, avec une attention particulière à leurs habitudes et de l'industrie Année : 1889 CUbiodiversity1121211-9810 ( Fio. 169. Fl<i. 161. Fki. 160. De Qcers croquis des nids d'Araignée Clubiona cocoon. Fio. 159. Feuilles de bouleau d'huile. Crf. 160. Le cocon de snme. FiG. 161. Sur un nid de feuilles apple. lowish au début, mais par la suite devient jaunâtre. La femelle reste en garde par ses oeufs. Le Drassus sylvcstris de cocoon est blanc, d'un shap aplati

• Contributeur: Bookive / Alamy Banque D'Images
• ID de l’image: W9G834
• Taille du fichier: 5,7 MB (135,1 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1569 x 1275 px | 26,6 x 21,6 cm | 10,5 x 8,5 inches | 150dpi

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Archive image from page 136 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9810 Year: 1889 ( Fio. 169. Fl<i. 161. Fki. 160. De Qcers sketches of Clubiona cocoon nests. Fio. 159. Oil birch leaves. Fiu. 160. Cocoon of the snme. FiG. 161. Nest on an apple leaf. lowish at first, but afterwards becomes yellowish in color. The female re- mains on guard by her eggs. The cocoon of Drassus sylvcstris is white, of a flattened shape, and a little less than one-third inch in diameter. It is formed in July English j concealed in the silken cell in a hole in the earth under stones. The mother is usually found witli her cocoons. Drassus lapidicolens conceals herself in a cell formed between, the sur- face of the earth and the under side of a stone, near which she spins some threads, forming an irregular square. In this cell, in the months of July and August, she places her cocoon, covering it with dead leaves. This, at first, is in the form of a flattened sphere, but becomes nearly round when the yt)ung are about to escape. It is white and about one-half an inch in diameter. The mother remains with her young some time after the eggs are hatched. The cocoons formed by the beautiful little Drassus nitens are about one-sixth inch in diameter, hemispherical, and white. The mother inhabits a tube which proceeds from the upper side of the cocoon. ' See descriptions of Blackwall and Staveley.

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