[1651] Plates [VIII.] [IX.] i´.
[1652] When the prothorax is separated from the elytra by a kind of isthmus, as in Scarites, Passalus, &c., the dorsolum is more or less uncovered.
[1653] Plate [VIII.] Fig. 16. 20. i´.
[1654] Plate [IX.] Fig. 7. i´.
[1655] [Ibid.] Fig. 10. i´. k´.
[1656] [Ibid.] Fig. 1. i´. k´.
[1658] Plates [VIII.] [IX.] [XXVIII.] k´.
[1659] Audoin, Chabrier, &c.
[1660] Olivier. He seems also to have thought that neither the Orthoptera nor Homopterous Hemiptera have this part. N. Dict. d'Hist. Nat. x. 112.