【摘要】 落叶松叶蜂在秦岭山地林区1年发生1代,6月中旬后以老熟幼虫结茧越冬,翌年4月下旬化蛹,5月上旬成虫羽化,5月下旬卵孵化,幼虫5龄。雌雄性比19.7:1,5％的个体2年1代。其发生期比山西、辽宁等地早1个月。更多还原

【Abstract】 Describes the life history of Pristiphora erichsonii ( Hartig ) in Qinling mountains. It breeds one generation a year ( 5 % every other year ) and begins to cocoon to overwinter in the litter layer in mid June.The larvae pupate in late April of the next year. The adults emerge in early may and the eggs hatch in late May. There are five instars in larva stage. Ratio of female to male is 19.7 : 1 .The outbreak in Qinling mountains is one month earlier than in Shanxi , and Liaoning.更多还原