Acrosternum alienum Schouteden, 1960: 360–361.

Coloration. Predominantly green, including connexivum. Pronotum with yellow spots. Lateral margins of juga and pronotum black, followed by a green band. Connexivum and urosternites green. Black macula present in posterolateral angles of connexivum and urosternite. Head. Margins of juga with slight concavity in front of eyes, apex of head broadened and semicircular. Proportion of antennal segments: I<II<III≈IV*. Rostrum reaching mesocoxae. Proportion of rostral segments: I<II>III≈IV. Thorax. Anterolateral margins of pronotum with a submarginal dorsal depression. Humeral angle obtuse. Hemelytra with costal angles slighty obtuse. Membranal sutures Membranal suture convex. Abdomen. Medial spine of third urosternite reaches the mesocoxae. Spiracles yellow.

Distribution. Democratic Republic of Congo, Tanzania.

Host plants. No information available.

*The segment V is absent because it got lost.