陕西省秦岭地区同脉缟蝇属系统分类研究（双翅目：缟蝇科：同脉缟蝇亚科）
发布时间：2018-12-29 16:47
【摘要】：缟蝇科昆虫营腐食性、菌食性,是重要的生态平衡维持者,因其对环境变化敏感,而备受关注。同脉缟蝇属是双翅目缟蝇科同脉缟蝇亚科最大的属,全世界已知720多种,我国已知220余种。本篇论文首次较为系统的记述了秦岭地区分鬃同脉缟蝇亚属4个新种,同脉缟蝇亚属20个新种、2个中国新纪录种、12个陕西省新纪录种,提出了 1个同物异名种;编写了分亚属、分种团、分种检索表,绘制了38种雄性外生殖器图,对头、胸、腹、翅等局部鉴别特征进行了拍照;整理完成了中国同脉缟蝇亚科同脉缟蝇属2个亚属的名录。基于形态特征数据,进行聚类分析,利用外群比较法,初步探讨了 2亚属间、10种团间、38个种的关系。聚类分析结果表明,单突同脉缟蝇种团的种以纵脉R4+5上的端斑和横脉r-m之间有2个褐斑作为共有特征而聚为一支;河南同脉缟蝇种团的种以纵脉R4+5上的端斑和横脉r-m之间有1个褐斑为共有特征而聚为一群。分鬃同脉缟蝇亚属3个种,即周至分鬃同脉缟蝇、延庆分鬃同脉缟蝇、膨大分鬃同脉缟蝇聚为一支,是以翅的纵脉上有褐色端斑和横脉上有褐斑、腹稍前节环形为共有特征,而沙氏分鬃同脉缟蝇以腹稍前节半环形这个特征区别于上述3种,并未与上述3个种聚为一群。基于38种缟蝇的分布信息,对秦岭地区同脉缟蝇属2亚属的区系组成进行了初步分析,结果表明,分布在东洋区的有6种,占秦岭地区种级阶元的12.63%;分布在古北区的有9种,占秦岭地区种级阶元的23.68%;目前仅分布于秦岭地区的有23种,占秦岭地区种级阶元的60.52%。所有研究标本(包括模式标本)保存在内蒙古农业大学昆虫标本馆。
[Abstract]:Oncomyzidae is an important ecological balance maintainer because of its sensitivity to environmental changes. Chimera is the largest genus of the family Diptera, more than 720 species are known in the world and more than 220 species are known in China. In this paper, for the first time, 4 new species of the subgenus of coveolia in Qinling, 20 new species of symphysis, 2 new records of China and 12 new records of Shaanxi Province were systematically described, and one synonym was proposed. The index tables of subgenus, subspecies and species were compiled, 38 species of male genitalia were drawn up, and the local distinguishing features of head, chest, abdomen and wings were photographed, and the catalogue of 2 subgenera of the same chimera genus in China was completed. Based on morphological data, cluster analysis was carried out, and the relationships among 2 subgenera, 10 clusters and 38 species were preliminarily discussed by using the method of external group comparison. The results of cluster analysis showed that the two brown spots on the longitudinal vein R45 and the transverse vein r-m were the common characteristics of the monomorphic chimera fly species and clustered into one branch. One brown spot between the end spot and the transverse vein r-m on the longitudinal vein R45 is the common feature of the species in the same chimera flies of Henan province, and it is clustered into a group of the species in which there is a brown spot between the longitudinally vein R45 and the transverse vein r-m. Three species of the subgenus Hymenoptera, I. e., the chimera fly of the same stripe in the zigzag, and the chimera fly of the same vein in Yanqing. The expanded bristles and the same vein are clustered into one branch. The common feature is the brown end spot on the longitudinal vein and the brown spot on the transverse vein, and the anterior ventral ring is the common feature. But the chimera fly with the same vein and bristles is different from the three species in the semicircle of the ventral anterior ganglia, and does not form a group with the three species mentioned above. Based on the distribution information of 38 species of chimera flies, the floristic composition of 2 subgenera of the genus Ichophyllus in Qinling region was preliminarily analyzed. The results showed that there were 6 species distributed in the Oriental region, accounting for 12.63% of the order of species in the Qinling region. There are 9 species distributed in the paleo-north region, accounting for 23.68 species in Qinling region, and 23 species in Qinling area at present, accounting for 60.52% of the species rank in Qinling area. All the study specimens (including type specimens) are kept in the insect Herbarium of Inner Mongolia Agricultural University.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：Q969
本文编号：2395088
[Abstract]:Oncomyzidae is an important ecological balance maintainer because of its sensitivity to environmental changes. Chimera is the largest genus of the family Diptera, more than 720 species are known in the world and more than 220 species are known in China. In this paper, for the first time, 4 new species of the subgenus of coveolia in Qinling, 20 new species of symphysis, 2 new records of China and 12 new records of Shaanxi Province were systematically described, and one synonym was proposed. The index tables of subgenus, subspecies and species were compiled, 38 species of male genitalia were drawn up, and the local distinguishing features of head, chest, abdomen and wings were photographed, and the catalogue of 2 subgenera of the same chimera genus in China was completed. Based on morphological data, cluster analysis was carried out, and the relationships among 2 subgenera, 10 clusters and 38 species were preliminarily discussed by using the method of external group comparison. The results of cluster analysis showed that the two brown spots on the longitudinal vein R45 and the transverse vein r-m were the common characteristics of the monomorphic chimera fly species and clustered into one branch. One brown spot between the end spot and the transverse vein r-m on the longitudinal vein R45 is the common feature of the species in the same chimera flies of Henan province, and it is clustered into a group of the species in which there is a brown spot between the longitudinally vein R45 and the transverse vein r-m. Three species of the subgenus Hymenoptera, I. e., the chimera fly of the same stripe in the zigzag, and the chimera fly of the same vein in Yanqing. The expanded bristles and the same vein are clustered into one branch. The common feature is the brown end spot on the longitudinal vein and the brown spot on the transverse vein, and the anterior ventral ring is the common feature. But the chimera fly with the same vein and bristles is different from the three species in the semicircle of the ventral anterior ganglia, and does not form a group with the three species mentioned above. Based on the distribution information of 38 species of chimera flies, the floristic composition of 2 subgenera of the genus Ichophyllus in Qinling region was preliminarily analyzed. The results showed that there were 6 species distributed in the Oriental region, accounting for 12.63% of the order of species in the Qinling region. There are 9 species distributed in the paleo-north region, accounting for 23.68 species in Qinling region, and 23 species in Qinling area at present, accounting for 60.52% of the species rank in Qinling area. All the study specimens (including type specimens) are kept in the insect Herbarium of Inner Mongolia Agricultural University.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：Q969
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