Assertion: fly | /r/HasProperty | genus glossina
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text: Tsetse fly, (genus Glossina), also spelled tse-tse, also called tik-tik fly, any of about two to three dozen species of bloodsucking flies in the housefly family, Muscidae (order Diptera), that occur only in Africa and transmit sleeping sickness (African trypanosomiasis) in humans and a similar disease called nagana in domestic animals.