广西等翅目昆虫区系及地理分布

The Fauna and Geographic Distribution of Isoptera in Guangxi

关键词:  等翅目  区系  地理分布  广西

Key words:  Isoptera  fauna  geographic distribution  Guangxi

摘要:

结合广西综合自然地理特点,从区系和区域二方面探讨了广西等翅目昆虫的分布,并与邻省白蚁区系进行了比较。表明:区系组成以东洋区的中缅亚区种为主;中缅亚区中亚热带分布种略占优势,热带分布种也占有相当比重。区域成分华南区较华中区丰富.反映出热带地区白蚁组成的多样性特点。广西区域成分与广东省最相似,而种类组成则与湖南关系密切。分布在广西南部的土垅大白蚁(Macrotermes annandalei)是热带景观的标志。依种类分布现状,将广西拟为国内白蚁亚热带种类的主要分布中心,以及印一马种向我国东南沿海地区扩散的中间地带之一。

Abstract:

Combining synthetical natural geographic characters, the distribution of termites of Guangxi are discussed from two aspects fauna and region, and compared with neighbour provinces in the fauna.The results show that in faunal element, China-Burma species in the oriental region are main species,among them subtropical species dominates slightly and tropical species have properly proportion. Faunal element in the southern China area are more abundant than that in the central China area, it reflects the diversify of faunal element of termites in tropical area. Faunistic element of Guangxi is most similar to Guangdong Province's, and species component is in close relationship with Hunan Province's. According to the component and distribution Guangxi is supposed as the main distribution centre of subtropical species of termites in civil and as one of the middle regions where India-Malaya species spread through southeast coastal area in China.