There are other allusions to this intimidating insect in this book.
A composition date is the date when a particular text is thought to have been (originally) written.
To bully is to intimidate through blustering, domineering, or threatening behavior: workers who were bullied into accepting a poor contract.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co.
If you need to be mean and intimidating toward someone, then you have to have an attitude of "I don't care what anyone thinks," a healthy dose of confidence, and the words to back it up.
If you want to know how to be mean and intimidating when you need to be, see Step 1 to be on your way.