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竹蝗属 (Ceracris)昆虫是东洋区特有成分。着重从地理分布、形态数量性状和染色体特征几个方面 ,对竹蝗属物种进行比较分析。结果表明 :竹蝗属昆虫在我国由南往北种类趋于减少 ,自东南向西北呈现长翅种类被短翅种类替代趋势。迄今已知的 7种中有 3个为多型种 ,云南省分布有 7种(亚种 ) ,已成为竹蝗的现代分布中心。竹蝗属昆虫的性染色体位次在种间表现出差异 ,染色体数目2 n♀ =2 4 (2 n =2 3)与竹类中最低倍性的一些现存原始种的染色体数目相一致。此外 ,根据测量数据 ,首次提出竹蝗形态类型划分的数量性状标准
Ceracris insects are endemic to the Toyo region. Focus on the geographical distribution, the number of morphological traits and chromosomal characteristics of several aspects of the genus Bamboo locust comparative analysis. The results showed that the species of Ornithogamy locusts tend to decrease from south to north in China, while the long-winged species from southeast to northwest are replaced by short-winged species. Three of the seven species known so far are polymorphas, and seven species (subspecies) are found in Yunnan Province, and have become the modern distribution center of bamboo locusts. The sex chromosome number of the locusts differs in species. The number of chromosomes 2 n♀ = 2 4 (2 n = 2 3) is consistent with the number of chromosomes of some existing primitive species with the lowest ploidy in bamboo species. In addition, based on the measurement data, the quantitative trait criterion