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Was this person also an entomologist? The Wikispecies article Wikispecies:Adolf G. Closs has the same years for birth and death.   SchreiberBike | ⌨  23:55, 10 December 2018 (UTC) reply

As G A was an illustrator too I am assuming it is the same man. Notafly ( talk) 16:52, 11 July 2019 (UTC) Seems likely he assumed Adolf after his father's death or to avoid confusion with his uncle Gustav Paul Closs. reply

and see ( also as G.A.)

• Closs, G. A.(1912) Zwei neue Aberrationen aus meiner Sphingidensammlung, en Internationale Zeitschrift Entomologische, vol. 6, Guben, Internationaler Verein Entomologischer i.v. 31 Août, 1912, pp. 384 (153). 20 Août Récupéré, 2014.
• Closs, G.A. (1910). Zwei neue Sphingidenformen Berliner entomologische Zeitschrift 54: 224.
• Closs, G.A. (1911). Zwei neue Sphingidenformen in meiner Sammlung Internationale entomologische Zeitschrift 5: 199.
• Closs, G.A. (1917). Neue Formen aus der Familie der Sphingidae Internationale entomologische Zeitschrift 11: 153.

Best regards Notafly ( talk) 16:39, 12 July 2019 (UTC) reply