Platyxyela gen. nov. (Hymenoptera, Xyelidae, Macroxyelinae) from the Middle Jurassic of China

Zootaxa ◽  
2012 ◽  
Vol 3456 (1) ◽  
pp. 82 ◽  
Author(s):  
MEI WANG ◽  
CHUNGKUN SHIH ◽  
DONG REN

Platyxyela unica, gen. et sp. nov., assigned to the Macroxyelinae of Xyelidae is described from the Middle Jurassic Jiulongshan Formation of eastern Inner Mongolia, China. The new genus is characterized by Sc2 of the forewing meeting R at a short distance before the origin of Rs, the first section of Rs being shorter than the first section of M and nearly equal to Sc2, the antennomere 3 being shorter than the combined length of the remaining flagellomeres, the ovipositor sheath being much longer than wide. An updated key for the known genera of Macroxyelinae is given.

Zootaxa ◽  
2008 ◽  
Vol 1762 (1) ◽  
pp. 53 ◽  
Author(s):  
XIN-WEN ZHANG ◽  
DONG REN ◽  
HONG PANG ◽  
CHUNG-KUN SHIH

A new genus with a new species (Jurachresmoda gaskelli gen. et sp. nov.) of Chresmodidae (Insecta: Polyneoptera: Orthopterida) is described and illustrated. They were collected from the Middle Jurassic in Daohugou, Jiulongshan Formation, Inner Mongolia (Nei Mongol Autonomous Region), China. J. gaskelli have fringing hairs on tarsi and a part of tibiae of mid legs. These hairs and leg structures were probably associated with its water-skiing locomotion on freshwater. A high number of tarsomeres, e. g. ultra-articulated tarsi as reported in other species of Chresmodidae, are also found for this new species. But, these true tarsi are mixed with some wrinkles resulted from dehydration and compression during fossilization process. Nymphs of the new species are also described. This is the first time that long and segmented cerci of the nymph are described in Chresmodidae.


Zootaxa ◽  
2011 ◽  
Vol 2927 (1) ◽  
pp. 57 ◽  
Author(s):  
YONGJUN LI ◽  
ANDRÉ NEL ◽  
DONG REN ◽  
HONG PANG

The new aeshnopteran genus and species Sinocymatophlebiella hasticercus is described from the Middle Jurassic Jiulongshan Formation of Inner Mongolia. It shows important similarities with the Jurassic genus Cymatophlebiella from Karatau, suggesting they could belong to the same family, but the latter genus is too poorly known to accurately establish its affinities. The present discovery supports the evolutionary scenario of a Jurassic rapid and massive diversification of the Aeshnoptera, followed by important extinctions during the Late Mesozoic.


2013 ◽  
Vol 145 (5) ◽  
pp. 496-500 ◽  
Author(s):  
Chen-Yang Cai ◽  
Di-Ying Huang

AbstractA new rove beetle, Sinanthobium daohugouense, new genus, new species, is described and illustrated on the basis of a tiny impression fossil from the Middle Jurassic Jiulongshan Formation at Daohugou, Inner Mongolia, China. The new genus is placed in the subfamily Omaliinae (Coleoptera: Staphylinidae), tentatively in the Recent tribe Anthophagini. The first find of a definitive omaliine beetle from the Middle Jurassic of China provides direct evidence on the origin and early evolution of Omaliinae.


2015 ◽  
Vol 89 (4) ◽  
pp. 617-621 ◽  
Author(s):  
Wei-Ting Zhang ◽  
Chung-Kun Shih ◽  
Conrad C. Labandeira ◽  
Dong Ren

AbstractA new genus and species, Aclemus patulus n. gen. n. sp., is described based on a new specimen collected from the latest Middle Jurassic Jiulongshan Formation in Inner Mongolia, China. Based on a combination of characters from this fossil, including a homonomous fore- and hindwing, a 3-branched media vein, wings lacking long cilia on their margins; and a cross-vein absent between subcosta and radius, we establish a new genus assigned to the Eolepidopterigidae. In addition, the diagnosis of Longcapitalis excelsus Zhang, Shih, Labandeira and Ren 2013, is emended based on new fossil material.


Zootaxa ◽  
2009 ◽  
Vol 2094 (1) ◽  
pp. 52-59 ◽  
Author(s):  
TAIPING GAO ◽  
DONG REN ◽  
CHUNGKUN SHIH

Abrotoxyela gen. nov. of Xyelidae and Abrotoxyela lepida sp. nov. and Abrotoxyela multiciliata sp. nov. are described from the Middle Jurassic Jiulongshan Formation of Daohugou Village, Inner Mongolia, China. The new genus is established on basis of the triple-branched vein Sc of the fore wing with first branch intersecting C at nearly 1/4 of its length; Sc terminates at C distal to the origin of Rs; and basal section of Rs approximately as long as that of M.


Zootaxa ◽  
2006 ◽  
Vol 1384 (1) ◽  
pp. 41-58 ◽  
Author(s):  
YUNZHI YAO ◽  
WANZHI CAI ◽  
DONG REN ◽  
CHUNGKUN SHIH

Three new genera and three species of fossil rhopalid, Originicorizus pyriformis gen. & sp. nov., Quatlocellus liae gen. & sp. nov., and Grandicaputus bipunctatus gen. & sp. nov., are described and illustrated. They were discovered from the Middle Jurassic Jiulongshan Formation of Eastern Inner Mongolia, China. The present discovery demonstrates that the early diversification of rhopalids was well underway by the Middle Jurassic.


Zootaxa ◽  
2011 ◽  
Vol 2745 (1) ◽  
pp. 53 ◽  
Author(s):  
XIAOXIONG PAN ◽  
HUALI CHANG ◽  
DONG REN ◽  
CHUNGKUN SHIH

A new genus with three new species of fossil Buprestidae, Sinoparathyrea bimaculata gen. et sp. nov., S. gracilenta sp. nov., and S. robusta sp. nov., from the Middle Jurassic Jiulongshan Formation of Inner Mongolia, China, are described. This is the earliest fossil record of buprestids in China and it is also the first record of buprestids from the Middle Jurassic Jiulongshan Formation of China.


Zootaxa ◽  
2019 ◽  
Vol 4691 (2) ◽  
pp. 153-160
Author(s):  
YE HAN ◽  
YAJING CAI ◽  
DONG REN ◽  
YONGJIE WANG

A new genus and species of rhagionids with a long proboscis, Elliprhagio macrosiphonius gen. et sp. nov., is described from the Middle Jurassic Jiulongshan Formation in Daohugou, Inner Mongolia, China, which is considered to be the earliest hematophagous rhagionid described hitherto according to the typically piercing and sucking mouthparts. All previously documented rhagionids from northeastern China are reviewed a key to genera of Rhagionidae from Daohugou is provided for the first time. The genus Daohugorhagio Zhang, 2013 is considered as a new synonym of Trichorhagio Zhang, 2013. 


2021 ◽  
Vol 733 ◽  
pp. 146-159
Author(s):  
Yan Zheng ◽  
Haiyan Hu ◽  
Dong Chen ◽  
Jun Chen ◽  
Haichun Zhang ◽  
...  

A new genus and two new species of Xyelidae Newman, 1834 (Hymenoptera Linnaeus, 1758), Platyxyela tenuis sp. nov. and Scleroxyela daohugouensis gen. et sp. nov. are described and illustrated from the Middle Jurassic Daohugou Beds of Ningcheng, Inner Mongolia, China. Platyxyela tenuis sp. nov. (Xyelinae Newman, 1834, Liadoxyelini Rasnitsyn, 1966) can be distinguished from its congeners by short forewing length and ovipositor sheath strongly narrowed toward acute apex. Scleroxyela daohugouensis gen. et sp. nov. is placed within Macroxyelinae Ashmead, 1898, Xyeleciini Benson, 1945 based on pterositigma completely sclerotised and costal space sclerotised before ptrostigma, 1-Rs half as long as 1-M, and 1m-cu short. It is the first recorded species of Xyeleciini in Daohugou Beds. Furthermore, an updated key of identification of subfamilies and tribes of Xyelidae is provided. Our findings of new morphological data provide insights into the early evolution of Hymenoptera, as well as effectively enrich our understanding of the diversity of Xyelidae in the Mesozoic.


Sign in / Sign up

Export Citation Format

Share Document