. Economic entomology. Beneficial insects; Insect pests; Thysanura. Diagram of tube of Nemesia eleanora. I '- Diagram of tube of Nemesia meridionalis. nieridionahs, makes a tube into the ground hke the others,, and with the usual trap-door, but a short way down it makes another shorter tube sloping obliquely for a short distance upwards and downwards and at the junction of this it places another trap-door, only in this instance less solid and more flexible, and like a hanging curtain. It is, moreover, so con- structed as to suit the convexity of the tube in which it lies, so that, when in its
. Economic entomology. Beneficial insects; Insect pests; Thysanura. Diagram of tube of Nemesia eleanora. I '- Diagram of tube of Nemesia meridionalis. nieridionahs, makes a tube into the ground hke the others,, and with the usual trap-door, but a short way down it makes another shorter tube sloping obliquely for a short distance upwards and downwards and at the junction of this it places another trap-door, only in this instance less solid and more flexible, and like a hanging curtain. It is, moreover, so con- structed as to suit the convexity of the tube in which it lies, so that, when in its natural position, shutting the entrance of the second tube there is no appearance of the door at all. The eye on looking in penetrates to the bottom, and sees apparently nothing but an empty tube, whilst all the time the spider may be reposing securely in the second tube protected from view by the concave door. But that is not all; the spider can, if it chooses, push this inner door to, so as to close the main. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Murray, Andrew, 1812-1878. [London] Chapman and Hall
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondonchapmanandha
