doryphoren.

1949 H. Nicolson in Spectator 4 Nov. 600/1 These Colorado beetles will spent hours searching for a misprint in the Oxford English Dictionary... Although these doryphores may achieve the short delight of proving that an author has made a mistake on page 479, they will never know the slow, long pleasure of writing a large book with continuous application.

1949 Spectator 18 Nov. 678/1 I hope that amongst the immortal statesmen and palaeo-botanists I may be designated, as I now subscribe myself.—Your obedient servant, Hills John, impenitent doryphore.

1952 H. Nicolson in Spectator 17 Oct. 500/1 The doriphore..is the type of questing prig, who derives intense satisfaction from pointing out the errors of others.

1960 H. Nicolson Age of Reason xii. 223 Boileau was so hurt by this reproof on the part of a female doryphore that he never set foot in Reuilly again.

1960 Daily Tel. 9 Dec. 19/3 The idiomatic implications of such a word as doryphore in his [sc. Sir Harold Nicolson's] own text is left for the ignorant to guess. (It means a Colorado beetle and, hence, a pest.)

1970 Times Lit. Suppl. 4 June 615/3 The editor..must..shrug off the pricks of professional doryphores.

1989 New Yorker 3 Apr. 99/2 When [the editors]..took me to lunch, they were rigidly abstemious, lest they fuddle their minds and give hostages to subsequent doryphores on returning to work.

1999 UNIX Review’s Performance Computing May 23/1 A huge doryphore's delight is to find that the Cambridge Biographical Encyclopedia..refers to Clive Sinclair's 3-wheeled electric-car as the ‘CS’.