23 Feb 2015 - A friend with access to obscure online journals found me the text of A new species of Thysania allied to T. agrippina, K. Jordan, in the 1924 Proceedings of the Entomological Society of London. "Dr. K. Jordan exhibited some specimens of the large American noctuid T. agrippina ... and said 'the specimens belong to two distinct species.'" He then describes the distinguishing features of body and wing coloration, as well as of the male genitalia. He suggests that T. pomponia may be limited to SE Brazil, which would help explain its scarcity in the collection record (the only specimens of which I am aware are in the British Museum).
Jordan also states that the "true larva [of T. agrippina], discovered by Rev A. Miles Moss at Para, is marked with numerous short black transverse dashes and black dots on a greenish-yellow ground." -DLC
Jordan also states that the "true larva [of T. agrippina], discovered by Rev A. Miles Moss at Para, is marked with numerous short black transverse dashes and black dots on a greenish-yellow ground." -DLC