at·ta·cus | \ˈatə̇kəs\

Definition of attacus 

1 plural -es : an edible insect mentioned in Leviticus 11:22 (Douay Version) called bald locust in the Authorized and Revised Standard versions

2 Attacus [ New Latin, from Late Latin ] : a widely distributed genus of large chiefly tropical moths (family Saturniidae) that include the Asian Atlas moth

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History and Etymology for attacus

Late Latin, from Greek attakos

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a state of commotion or excitement

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