New Fossil Xyelidae (Insecta, Hymenoptera) from the Yixian Formation of Western Liaoning, China
New Fossil Xyelidae (Insecta, Hymenoptera) from the Yixian Formation of Western Liaoning, China
复制标题
中国辽西义县组新化石木蜂科（昆虫纲、膜翅目）
DOI：
10.1111/j.1755-6724.2011.00447.x
复制
发表时间：
2011-06-01
影响因子：
3.3
通讯作者：
Ren Dong
中科院分区：
文献类型：
--
作者：
Gao Taiping;Zhao Yunyun;Ren Dong
本文报道了中国植物志中的一个新属和两个新种，即短尖短角蛛Brachyoxyela brevinodia sp. nov.和纤细短角蛛Brachyoxyela gracilenta sp. nov.，描述和图解了Xyelidae科的Macroxyelinae亚科中的10种昆虫。这些化石采自辽宁省北票市上侏罗统至下白垩统义县组。该新属是根据Sc脉仅在Rs起点后与R相交，触角第三节长度与其余鞭毛节长度几乎相等，末端鞭毛节向顶端逐渐缩短，2 r-rs脉向翅尖倾斜等特征建立的。
In this paper one new genus and two new species, Brachyoxyela brevinodia sp. nov. and Brachyoxyela gracilenta sp. nov., in the subfamily Macroxyelinae of the family Xyelidae, are described and illustrated. The specimens were collected from the Yixian Formation, the Upper Jurassic to Lower Cretaceous, of Beipiao City, Liaoning Province, northeastern China. The new genus is established based on the characters that vein Sc meets R only beyond origin of Rs, third antennal segment is almost equal in length to the rest flagellomeres combined, terminal flagellomeres increasingly shortened toward apex, and vein 2r-rs inclined toward the apex of wing.