New stem-Phasmatodea from the Middle Jurassic of China

作者：Shang, Liangjie; Bethoux, Olivier; Ren, Dong^*

来源：EUROPEAN JOURNAL OF ENTOMOLOGY, 2011, 108(4): 677-685.

DOI：10.14411/eje.2011.086

• Adjacivena rasnitsyni gen. n., sp n.
• Phasmatodea
• Susumaniidae
• Heteropteryx dilatata
• China
• Daohugou
• intra-specific variability
• sexual dimorphism
• fossil
• Middle Jurassic

Adjacivena rasnitsyni gen. n., sp. n., from the Middle Jurassic Jiulongshan Formation (Daohugou Village, Inner Mongolia, China), is described based on a set of well-preserved specimens, interpreted as two females and a male of the same species. The new taxon is assigned to the family Susumaniidae, i.e. is a candidate stem-Phasmatodea. This ordinal assignment is supported by genital elements, chiefly a putative operculum concealing the ovipositor observed in one female specimen and a putative extension of the 10(th) tergum with a thorn pad in the male specimen. Variation in the venation of the forewing is appreciated based on more or less complete pairs of wings and a comparison with that in the forewings of male Heteropteryx dilatata (Parkinson, 1798). This material offers new perspectives on the primary homologies of the hind wing venation of stick-insects.

• 出版日期2011
• 单位首都师范大学