Assertion: ant's host | /r/HasProperty | tree-dwelling orchid bees
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Source sentences:
text: Only a few species are known to parasitize other types of hosts[citation needed]; exceptions include the European velvet ant, Mutilla europaea, one of the only species that attacks social bees (e.g., Bombus), and the genus Pappognatha, whose hosts are tree-dwelling orchid bees.