Adult: green overall; scutellum has black dot in each basal corner; third and fourth antennae segments mostly reddish except at base; connexivium uniformly colored (with no or very tiny dark dot on apical margin of each abdominal segment); side of pronotum slightly concave in anterior half; second abdominal sternite has rounded medial spine; ventral scent gland pore short and broad
Nymphs undergo a remarkable change in coloration: first instars are light yellowish with red eyes and transparent legs and antennae; they stay clustered near the eggs and do not feed. Second instars have black head, legs, and antennae; the thorax is also black, with a yellow spot on each outer side. The abdomen is dark red to black with numerous white spots. Third and fourth instars differ from the second in size and an overall greenish color becoming apparent (compare an
example image). Wing pads mark the arrival at the
fifth instar. The abdomen is yellowish green with red spots on the median line. The Southern Green Stink Bug usually spends eight days as a fifth instar before the final molt to an adult." - University of Florida, revised
