The 11th annual National Moth Week begins July 23, with a theme this year highlighting the small but mighty caterpillar. Take a moment to learn more about the larvae of Lepidoptera and their fascinating forms, habitats, and behaviors. (Top left: Hyles lineata by sophie_mc on iNaturalist, public domain. Top right: Acharia stimulea by gillydilly via iNaturalist, public domain. Bottom left: Schinia oleagina by Matt Kenne via on iNaturalist, public domain. Bottom right: Pyrrharctia isabella by Tod Robbins on iNaturalist, public domain.)