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本文报导舞毒蛾饰腹寄蝇Blepharipa pratensis选择寄主的过程。一旦它进入寄主栖息地井与叶边新伤口(切的、撕的或舞毒蛾吃的)接触,就会径向伤边趋近,并用前足跗节抱住叶边前后来回爬行,作出产卵企图。说明伤口渗出物能吸引寄蝇在该处停留并增强其用跗节探查。如果寄蝇接触到舞毒蛾幼虫吃的叶边,它就可产卵,大量的卵产生在寄主吃过的叶子上。比较人工切的和虫吃的叶,发现寄蝇能对寄主取食时留下的信息作出反应。寄主为害的叶簇数显著增加了寄蝇产卵量。林间模拟树冠的罩笼试验表明,100％叶簇受害区的着卵数(7911粒)显著多于50％叶簇受害区(4200粒)及好叶区的卵数(2209粒)。
This article reports the process of host selection by Blepharipa pratensis. Once it enters the host habitat and comes in contact with a fresh cuticular (cut, torn or gypsy moth), it hurts the radial edges and crouches back and forth with the forefoot to crawl back and forth, spawning an attempt . Explain that wound exudates can attract the flies to stay there and increase their use of snaps. If the flies contact the leaves of the gypsy moth larvae, they can lay eggs and a large number of eggs are produced on the leaves eaten by the host. Comparison of artificially cut and worm-eaten leaves reveals that the flies respond to the information left by the host feeding. The number of host-harmed leaf clusters significantly increased the fecundity. The cage experiment of canopy simulation showed that the number of eggs (7911) in 100% leaf cluster damaged area was significantly more than that in 50% leaf cluster (4200 grain) and the good leaf area (2209).