1–4 in Redescription of Callostethus Ruckes, 1961 (Hemiptera: Heteroptera: Pentatomidae: Discocephalinae) with the description of C. flavolineatus sp. nov.

1–4. Callostethus guttatopunctatus (Fabricius, 1803). 1–3, male; 1–2, pygophore; 1—dorsal view; 2— ventral view; 3—medial process of the seventh abdominal segment. 4—female, genital plates. (co—connexivum; dr—dorsal rim; gc8—gonocoxites 8; la8—laterotergites 8; la9—laterotergites 9; ma—semimembranous arms; mp—medial process of the seventh tergite; pa—parameres; pl—posterolateral angle; pp—projection of the proctiger; VII—seventh tergite; vr—ventral rim; X—proctiger. Scale = 1mm)