Queen of the South threw away a two-goal lead to draw 2-2 at Livingston and lose ground on the Scottish Championship top two.The Doonhamers had been on course to remain two points adrift of second-placed Rangers after goals from prolific pairing Iain Russell and Gavin Reilly.Livingston had not scored in their previous five league games, but substitute Daniel Mullen's clever run and finish pulled a goal back before Gary Glen struck again two minutes from the end.Russell's eighth goal in all competitions gave the visitors the lead on the half-hour, heading in Danny Carmichael's deflected shot, before Reilly converted John Baird's delivery from close range to have his side seemingly coasting to a third successive win.It was Reilly's seventh goal in the league, moving him level with Hearts' Osman Sow at the top of the division's goalscorers' chart, but Livingston snatched a point through Mullen and Glen.