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.
Moth Vision. Moths (like many other adult insects) have compound eyes and simple eyes. These eyes are made up of many hexagonal lens/corneas which focus light from each part of the insects field of view onto a rhabdome (the equivalent of our retina). An optic nerve then carries this information to the insects brain.