SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
House spider. Scanning electron micrograph (SEM)of a house spider, Tegenaria domestica. The house spider has eight eyes (central circles). Below the eyes are two large chelicerae which carry teeth for biting prey. Either side of the chelicerae are the long, segmented, leg-like palps, which are transformed into copulatory organs in the adult male. The spider's hairy legs can be seen at either side of the body. The house spider builds a web with a bag-like living area in its farthest corner in which the spider usually remains. This is attached to a sheet of spun silk covered in trip lines for trapping careless insects. Magnification: x17 at 6x7cm size. Magnification: x35 at 10x8 inch size.
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