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Morphology of glands and ducts in the two-spotted spider mite, Tetranychus urticae Koch, 1836

Mills, L.R.

1973 - Volume: 15 Issue: 2 pages: 218-236


Acari Tetranychus urticae silks glands salivary glands morphology tracheal organs


Tetranychus urticae has three pairs of silk glands, an unpaired salivary gland, and (in males, at least) a pair of glandular ’tracheal organs’ . The silk glands on each si de empty into a corn mon duct. This duct can be opened and closed to the outside air at both ends. The tracheal organs contain labyrinthine air-channels.

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1973 Mills, L.R.
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