Syme, The Augustan Aristocracy, p. 244 online. Linderski asserted that the official form of his name is unknown because the Fasti Consulares for 52 BC are lost; see "The Dramatic Date of Varro, De re rustica, Book III and the Elections in 54," Historia 34 (1985), p. 251, note 21. Linderski later amplified his view Scipio's nomenclature in the Imperium sine fine essay.
Syme, The Augustan Aristocracy, p. 244, note 6, citing D.R. Shackleton Bailey, Two Studies in Roman Nomenclature (1976), p. 98 ff. (see also for discussion of Metellus Scipio's names). Tribunate rejected and patrician status affirmed most emphatically by Linderski, "Q. Scipio Imperator," p. 149 ff. online. Scipio was an interrex; patrician rank was a prerequisite for the office.
Caesar, De Bello Civili, i. 5; William W. Batstone and Cynthia Damon, Caesar's Civil War, Oxford University Press, (2006), p. 109 online.
See also the remarks of Syme, The Augustan Aristocracy, p. 245 online.
Jerzy Linderski, "Q. Scipio Imperator," in Imperium sine fine: T. Robert S. Broughton and the Roman Republic (Franz Steiner, 1996), pp. 148–149. The adoption is recorded by Cassius Dio, lx. 51, where he is referred to as "Quintus Scipio"; for the passage, see Bill Thayer's edition at LacusCurtiusonline.