The eyes are dark red or black. Small black dots can be found along the sides of the abdomen. The wings completely cover the abdomen. The males average 12.1 mm in length and females 13.15 mm in length. Copulation may last a few minutes to a few days.
Females can lay eggs three to four weeks after becoming adults.
The average female lays one egg mass but production of two egg masses in not uncommon. A female southern green stink bug could lay as many as 260 eggs over her life span. The southern green stink bug has piercing-sucking mouthparts. The mouth consists of a long beak- like structure called the rostrum. Salivary fluid is pumped down the salivary duct and liquefied food is pumped up the food canal.