摘要
中国荒漠半荒漠地区已知拟步甲３亚科１９族５９属３２４种，其中特有种１７１种，占５２．８％；中亚种９２种，占２８．４％；西伯利亚种３５种，占１０．８％；青藏高原种１５种，占４．６％；泛古北种８种，占１３．６％；地中海种３种，占０．９１％。属级单位组成上呈现中亚区系＞西伯利亚区系＞地中海区系＞地方特有区系＞青藏高原区系＞泛古北区系，其数量分别是３０，２２，１５，１４，１３，８。属种及其数量分布在各地理上呈现由西向东、由北向南递减的趋势，即新疆４１属２１５种＞内蒙古３８属１２９种＞甘肃３０属７７种＞宁夏２４属７１种＞青海北部１２属２９种＞陕西北部１４属２１种＞山西北部１１属１７种＞河北北部１０属１６种＞辽宁西部５属１２种。表明中国荒漠半荒漠地区拟步甲昆虫是中亚区系的主要组成成分，在属级组成上与欧洲———西伯利亚区系和青藏高原区系有较大联系，新疆是我国荒漠半荒漠地区拟步甲昆虫分布最丰富地区，占总种数的６６．４％。本文还对新疆地区、柴达木盆地、甘蒙地区。
subfamilies,19
tribes ,59 genera and 324 species (subspecies) of darkling beetles are reported from Chinese
desert and semidesert regions in this paper, among them 171 species are endemic, occupying
52.8%; 92 Centro-Asiatic species,28.4%;35 Sibiran species,10.8%;14 Qinghai_Xizang
species,4.3%; 8 Pan_palaearctic spesies,3.6% and 3 Mediterranean Sea species,0.91%.The
fauna characters of genera degree presented on composition are:Centro_Asiatic
member(30)>Siberian member(22)>Mediterranean member(15)>Endemic
member(14)>Qinghai_Xizang member(13) > Pan_palaea_rctic member(8), respectively; the
numbers of genera and species distribution each zoogeographical region presented
progressively decreasing trend from west to east and from north to south(genera/species):
Xinjiang(41/215 )>Inner Mongolia (38/129)>Gansu( 30/77)>Ningxia (24/71)>Northern
Qinghai(12/29)>Nothern Shaanxi(14/21)>Northern Shanxi(11/ 17)>Nothern Hebei (10/16) > West
Liaoning(5/12). These numbers indicated that the darkling beetles of desert and semidesert
regions are most mainly composition member for Centro_Asiatic fauna, and Europe_Siberian
fauna and Qinghai_Xizang fauna presented considerable contract on fauna composition of
genera degree, Xinjiang is richest region where the darkling beetles distributed, about 66.4% of
total species. Except the above_mentioned contents, also analysed mainly fauna character and
contract for five typical regions of tenebrionid beetles in China, namely: Xinjiang region,
Chaidamu region, the Gansu_Inner Mongolia region, the Semidesert region of East Inner
Mongolia and the high mountain.
出处
《河北大学学报（自然科学版）》
CAS
1999年第2期176-183,共8页
Journal of Hebei University(Natural Science Edition)
基金
国家自然科学基金
关键词
昆虫区系
拟步甲
地理分布
荒漠
半荒漠
中国
insect fauna
darkling beetles
zoogeographic
distribution
desert and semidesert
