0 a large insect with long back legs that can jump very high and makes a sharp, high noise using its back legs or wings -- 蚱蜢，蝗虫
However, in non-outbreak years, the overall population dynamics of grasshoppers appears to be influenced significantly by a suite of natural enemies attacking successive developmental stages.
Some experiments were carried out on this subject with some of the common grasshoppers.
Fungous diseases of adult grasshoppers can be ignored, for in normal years the percentage of infestation is very low, probably less than one per cent.
All control insects survived the 9-day period of observation, while 30-95% of parasitized grasshoppers died, depending on the species (table 1).
All branches of each plant and the ground in each square were carefully examined in order to detect the presence of any grasshopper.
Secondary defence in the grasshopper does not occur if the spermathecae are surgically removed prior to mating.
These grasshoppers usually occurred on leaves or branches of trees, and were flushed by the macaques' movements.
Individual larvae were transferred with a camel's hair brush into the ruptured tympanum of each grasshopper.
