** Shares of Lithium Americas LAC.TO fall about 7% to C$3.80
** Company reports wider net loss in Q2, hurt by higher operating expenses
** LAC posts Q2 net loss of $13.25 million, or 6 cents per share, compared with a loss of $6.56 million, or 3 cents per share, a year earlier
** Q2 operating expenses rise to $7.85 million from $6.42 million a year ago
** Including session's moves, LAC shares down 11.4% YTD