Aegomorphus modestus is a small insect belonging to the family Cerambycidae, commonly known as longhorn beetles. It is characterized by its slender body and long antennae, which can be as long as its body. The species is typically found in forests and woodlands, where it feeds on decaying wood and plant material. Aegomorphus modestus is known for its modest coloration, with a dull brown or grayish appearance, allowing it to blend in with its surroundings.