In reference to the reader's question about slot machines where you play for gold or silver tokens: In Las Vegas, many of the casinos have 25-cent slots that pay off a $10 jackpot with a $10 silver souvenir token.
Moth (order Lepidoptera), any of more than 150,000 species of overwhelmingly nocturnal flying insects that, along with the butterflies and skippers, constitute the order Lepidoptera.
A moth is an insect closely related to the butterfly. The reality is that butterflies are a small group that arose from within the moths. Most species of moth are nocturnal (which means they are active at night), but not all.