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Abstract
A heat exchange mechanism in the head of kissing bugs helps to prevent stress and regulate their temperature while they feed on warm blood.
Highlights
O ver 14,000 species of insects, arachnids and other arthropods feed on the blood of vertebrates
Such gluttony can lead to dramatic increases in size: mosquitoes and tsetse flies grow 2–3 times bigger after a blood meal (Benoit et al, 2014; Lehane, 2005; Coast, 2009), whereas ticks and kissing bugs expand 10–100 fold (Sonenshine and Roe, 2014)
It is known that the thermal stress generated by the blood meal can trigger the arthropod’s heat shock response, as demonstrated by the increased production of heat shock proteins (Benoit et al, 2011)
Summary
O ver 14,000 species of insects, arachnids and other arthropods feed on the blood of vertebrates. One strategy commonly used to avoid detection is for the arthropod to ingest large blood meals to minimize how often feeding needs to occur.
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