Adult squash bugs are flattened in appearance and approximately 1/2 to 3/4 inch long. Gray to black in color, adults are winged with orange and brown stripes visible on the edges of the abdomen. Eggs are 1/16 inch long, yellowish-brown to brick red in color. Upon hatching, nymphs are wingless, pale green to white with red legs, heads, and antennae. As nymphs mature, they become more gray in color with black legs. Squash bugs are sometimes confused with the stink bug. Both insects are true bugs, have piercing/sucking mouthparts, and even give off a distinct odor when crushed. However, the stink bug is not a pest of cucurbits; it is more commonly associated with legume crops such as soybeans and tomatoes.