The labella are a complex structure consisting of many grooves, called pseudotrachea, which sops up liquids.
2.
Pill bugs also use modified lungs, called pseudotrachea, for respiration, and the lungs must remain moist to function.
3.
It some species there is a narrow canal ( pseudotrachea ) on the posterior surface of the pedipalpal coxapophysis, possibly conducting fluids into the digestive tract.
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