. The biology of spiders. Spiders; Insects. 340 THE BIOLOGY OF SPIDERS been reached as to a trustworthy scheme. The arrange- ment adopted in this chapter is not intended to be more than a convenient one for the present purpose. Nathan Banks, in 1915, divided the order of mites into eight groups called super-families, as follows : Eupodoidea. Snout-mites. Trombidoidea. Hydrachnoidea. Water-mites. Ixodoidea. Ticks. 5. Gamasoidea. 6. Oribatoidea. Beetle-mites. 7. Sarcoptoidea. 8. Demodicoidea. The Eupodoidea are soft-skinned mites, generally found free-living in cold and damp places under moss, l
. The biology of spiders. Spiders; Insects. 340 THE BIOLOGY OF SPIDERS been reached as to a trustworthy scheme. The arrange- ment adopted in this chapter is not intended to be more than a convenient one for the present purpose. Nathan Banks, in 1915, divided the order of mites into eight groups called super-families, as follows : Eupodoidea. Snout-mites. Trombidoidea. Hydrachnoidea. Water-mites. Ixodoidea. Ticks. 5. Gamasoidea. 6. Oribatoidea. Beetle-mites. 7. Sarcoptoidea. 8. Demodicoidea. The Eupodoidea are soft-skinned mites, generally found free-living in cold and damp places under moss, leaves, and decayed wood. One of the genera, Linopodes (Fig. 117), is characterised by the extraordinary length of its front legs, which are more than four times the length of its body. Clearly, such legs could not be used for walking ; they are held out in front as feelers. One family of this division is the Bdelli- dae, known as snout-mites on ac- count of a prominent forwardly directed false head or capitulum. The Trombidoidea are distinctly coloured mites which include the popular " red-spider," Tetranychus telarius. The Tetranychidae are also known as spinning-mites, for they have the power of producing silk from glands which open into the mouth and are probably modi- fied salivary glands. Masses of vegetation are occasionally covered with their webs, under which the females lay their. Fig. 117.—Linopodes, a Mite. After 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 Savory, Theodore Horace, 1896-. London : Sidgwick & Jackson
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