克钦邦白垩纪中期琥珀的一新种Cretevania Rasnitsyn,1975(膜翅目:Evaniidae)

IF 1.9 Q2 ENTOMOLOGY Palaeoentomology Pub Date : 2023-06-14 DOI:10.11646/palaeoentomology.6.3.6
Simon Rosse-Guillevic, C. Jouault
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引用次数: 1

摘要

本文描述了缅甸Noije Bum沉积中白垩世缅甸琥珀中发现的一种叶蜂属(膜翅目:叶蜂科)雄性标本。kachinensis sp. 11 .由于其前翅脉脉(即前翅细胞1+2r长,长于3r,是翼柱长的两倍以上,3r较窄三角形,几乎与1+2r一样宽)而容易被归为白蕊属,但与所有其他物种不同的主要原因是其静脉2Rs+M(比一个简单的接触点更发达)和1Rs(近垂直于R),以及细胞2cua构象(即矩形)。这一描述强调了中白垩世克钦琥珀中被低估的类星体多样性。
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A new species of Cretevania Rasnitsyn, 1975 (Hymenoptera: Evaniidae) from the mid-Cretaceous Kachin amber
Cretevania kachinensis sp. nov., a new species of evaniid wasp (Hymenoptera: Evaniidae), is described and illustrated from a male specimen preserved in the mid-Cretaceous Burmese amber of the Noije Bum deposits (Myanmar). Cretevania kachinensis sp. nov. is readily attributed to the genus Cretevania because of its forewing venation (i.e., forewing with cell 1+2r elongate, longer than 3r and more than twice as long as pterostigma length, 3r narrower triangular, nearly as wide as 1+2r), but differs from all other species mainly because of its veins 2Rs+M (more developed than a simple contacting point) and 1Rs (subvertical to R), and the cell 2cua conformation (i.e., rectangular). This description highlights the underestimated diversity of evanioids in the mid-Cretaceous Kachin amber.
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