梯室淡毛三节叶蜂生物学特性初步研究

Bionomics of Arge reversinervis Wei

梯室淡毛三节叶蜂Arge reversinervis Wei是危害刺榆Hemiptelea davidii的新害虫。对梯室淡毛三节叶蜂的卵、幼虫和蛹的形态特征进行描述,并首次对其生物学特性进行了研究。梯室淡毛三节叶蜂在海城1 a发生1代,以预蛹在土壤中越冬,翌年4月上旬化蛹,4月下旬成虫开始羽化,5月中旬卵开始孵化,6月上旬幼虫下树做茧越夏越冬。梯室淡毛三节叶蜂的天敌主要有显背臀姬蜂Notopygus insignis Kriechbaumer、褪色前眼茧蜂Proterops decoloratus Shestakov、叶蜂啮小蜂Tet-rastichus sp.及白僵菌Beauveria bassiana(Bals.)。

Arge reversinervis Wei was a new insect pest attacking Hemiptelea davidii. The morphology, bionomics, occurrence and natural enemies of the pest were introduced. Arge reversinervis Wei had one generation a year in Haicheng, Liaoning Province. It overwintered as prepupa in the soil and began to pupate in the first ten days of the next April. The adult began to emerge in late April. The larva hatched in mid May and climbed down trees into the soil in the 1 st ten days of June. The important natural ene- mies were Notopygus insignis Kriechbaumer, Proterops decoloratus Shestakov, Tetrastichus sp. and Beauveria bassiana（ Bals. ）