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.
Butterflies and moths are part of Life on Earth and an important component of its rich biodiversity. They have been around for at least 50 million years and probably first evolved some 150 million years ago. Butterflies and moths are a highly diverse group comprising over 250,000 species and make up around one quarter of all named species.