Caterpillars have lungs

Peter J. Mill ()
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Peter J. Mill: the School of Biology, University of Leeds

Nature, 1998, vol. 391, issue 6663, 129-130

Abstract: Dogma has it that air is delivered to the tissues of insects through a series of branched tubes called tracheae and tracheoles. But 350 years' worth of thinking could be overturned by a new study which shows that many caterpillars may, in fact, have a ‘lung’ of sorts. Known as the tokus, this specialized compartment provides the caterpillar's blood cells with oxygen and, under oxygen-poor conditions, the blood cells can be seen to congregate here.

Date: 1998
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DOI: 10.1038/34306

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