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spider fly

noun
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Definition of spider fly

1 : a sheep ked, bat fly, or similar usually wingless parasitic dipterous insect
2 : an artificial fly tied to imitate a spider or a spiderlike insect

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“Spider fly.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/spider%20fly. Accessed 19 January 2020.

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