Definition of swallow bug
: any of various hairy blood-sucking bugs (genus Oeciacus) that are closely related to the bedbug and usually feed on swallows and other wild birds but may also attack poultry and occasionally man
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“Swallow bug.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/swallow%20bug. Accessed 24 May. 2022.
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