内蒙古道虎沟中侏罗世中生蝎蛉科(昆虫纲,长翅目)昆虫化石新发现  

MIDDLE JURASSIC MESOPANORPODIDAE FROM DAOHUGOU,INNER MONGOLIA,CHINA (INSECTA,MECOPTERA)

作　　者：孙建海[1] 任东[1] 史宗冈[1] 

机构地区：[1]首都师范大学生命科学学院,北京100037

出　　处：《动物分类学报》2007年第4期865-874,共10页Acta Zootaxonomica Sinica

基　　金：国家自然科学基金(30370184;30430100);北京市自然科学基金(5032003);北京市教育委员会科技发展计划重点项目(KZ200410028013);北京市市属市管高等学校拔尖创新人才项目共同资助.

摘　　要：描述中生蝎蛉科Mesopanorpodidae Tillyard,1918化石2新属3新种:宽翅柱状蝎蛉Stylopanorpodes eurypterus gen.et sp.nov.,华美纺锤蝎蛉Netropanorpodes decorosus gen.et sp.nov.,多刺纺锤蝎蛉Netropanorpodes sentosus gen.et sp.nov.。所有化石标本均采于内蒙古宁城道虎沟中侏罗世九龙山组地层,模式标本现保存于首都师范大学生命科学学院。Two new genera and three new species,Stylopanorpodes eurypterus gen.et sp.nov.,Netropanorpodes decorosus gen.et sp.nov.and Netropanorpodes sentosus gen.et sp.nov.,are described.All fossil specimens were collected from the Middle Jurassic Jiulongshan Formation of Inner Mongolia in China and deposited in the Capital Normal University.Stylopanorpodes gen. nov. Type species. Stylopanorpates euryptems gen. et sp Diagnosis. Moderate-sized insect, rostrum long and slender. Eyes large. Legs slender, covered with dense and tiny hairs, irregular mrrangement. The forewing broad, pterostigma not distinctly. Sc long, 2-branched, reaching the pterostigmal region. RI not branched, Rs 4-branched, forking before midwing, R4＋5 forking before R2＋3. M 4-branched, which forks later than Rs; M3＋4 forking before M1 ＋ 2. CuA and M fused basaUy for a long distance, cubito-merlizn Y-vein present. 2 crossveius between CuP and A1 present. Abdomen elongate, cylindrical, tapering apically, in the female 11 segments visible. Comparison. In the general venation scheme the Stylopanorpodes gen. nov. somewhat resembles Mesopanorpodes Tallyard, 1918 and Prochoristella Riek, 1953, but the new genus differs from the former by R4＋ forking before R2＋3, two cross-veins between 1A and CuP present, and differs from the latter by Rs forking before M, R2 ＋3 forking later, both R2 and R3 shorter, the cross-vein between CuA and CuP absent. The new genus also may be distinguished from other genera by the forking of Rs and M, and the cross-veins in apical area of Rs and M strongly degenerated. Etymology. The genus name is a combination of styl-（ Greek, meaning cylindrical ） and panorpodes （the holotype genus Mesopanorpodes in this family）.Stylopanorpodes eurypterus gen. et sp. nov. （Figs. 1- 4, 13） Etymology. Euryptems from Latin, means broad wing. Holotype. A well preserved female insect. Registration No： CaNU-M-NN-2006005. Locality and horizon. Daohugou Village, Ningcheng Gounty, Inner Mongolia, China; Jiulongshan Formation

关 键 词：长翅目 中生蝎蛉科 新属 新种 道虎沟 中侏罗世 

分 类 号：Q915[天文地球—古生物学与地层学]