经过对宁夏地区拟步甲标本鉴定和有关资料整理,共计得到5亚科17族39属140种;基于数据分析了拟步甲在该地区的物种多样性组成及其区系分布特点,得到如下初步结果:1.宁夏拟步甲在种类组成上从多到少依次是:拟步甲亚科Tenebrioninae21属76种(54.3%)〉漠甲亚科Pimeliinae13属46种(32.9%)〉朽木甲亚科Alleculinae1属9种(6.4%)〉伪叶甲亚科Lagriinae2属7种(5.0%)〉菌甲亚科Diaperinae2属2种(1.4%);2.构成宁夏拟步甲区系的主体是古北界中亚亚界蒙新区成分,种数多达117种(83.7%),其他动物地理区成分仅23种(16.3%);3.包括共有种在内,宁夏拟步甲的分布关系与蒙新区最密切,共计39属129种(92.1%),华北区次之,25属64种(45.7%),再次为青藏区16属22种(15.7%),而其他动物区的成分所占比例极少;4.在区域分布上,宁夏拟步甲呈现的基本趋势是:荒漠半荒漠昆虫亚区114种(81.4%)〉六盘山昆虫亚区38种(27.1%)〉黄土高原昆虫亚区30种(21.4%);5.宁夏拟步甲已知特有种18种,其中13种分布在荒漠半荒漠地区,其他区域仅5种。
By identifying to specimens of the darkling beetles and relevant data from Ningxia region, We obtain 140 species belonging to 39 genera, 17 tribes and 5 subfamilies in total. Based on the data, we analyse composion of species diversity and distribution characteristics of the darkling beetle base in the area. The preliminary results as follow : 1 ) The diversity of species from more to less successively are : Tenebrioninae (21 genera and 76 species) , occupying 54.3% of the total species 〉 Pimeliinae (13 genera and 46 species) , accounting for 32. 9% 〉 Alleculinae ( 1 genus and 9 species), accounting for 6.4% 〉 Lagriinae 2 genera and 7 species, accounting for 5.0% 〉 Diaperinae (2 genera and 2 species) , accounting for 1.4% ; 2) Analysis on the faunal composition from the view of the palearctic realm, the main is member of Mongolia - Xinjiang Region belonging to the Centro - Asia, Palaearctic member is 117 species (83.7%), other faunal members are only 23 species ( 16.3% ) ; 3) In the zoogeographic regions of China, Contain common species, the distributional relations the darkling beetles from Ningxia is closest the Mongol'a -Xinjiang Region, known 39 genera and 129 species, occupying 92. 1% of the total species; The North China Region (25 genera and 64 species) is the next, accounting for 45.7%. The Qinhai - Xizang Region ( 16 genera 22 species) is the third, accounting for 15.7%.The other Regions account for a small proportion; 4) Ningxia's darkling beetle presents preliminary trend In the regional distribution, The faunal characters of is: the Desert and Semidesert Region 114 species (81.4%) 〉 the Liupanshan Region 38 species (27. 1%) 〉 the Loess (21.4%) ; 5) known endemic species of locality have 18 species, of which Desert and Semidesert Region, only 5 species of other regions.