Scorpions Rhetorical Analysis

I believe the author is simply joking when the author call scorpions “pleasant, unassuming creatures with, on the whole, the most charming habits.” The tone of the sentence seem to be taken as a humorous statement, and not to be taken serious.
The definition of the word impeccable mean (of behavior, performance, or appearance) in accordance with the highest standards of propriety; faultless or without flaw. He use the word to describe scorpions when he reveal the fact that scorpions eat each other. It suggest the author tone to be very playful and not to be so serious.
The author has a not so serious tone while writing this passage, he uses a lot of sarcasm when describing or referring to scorpions. I believe this passage was only to entertain