scholarly journals The last batrachideine of Europe: A new genus and species of pygmy grasshopper (Orthoptera: Tetrigidae) from Eocene Baltic amber

Zootaxa ◽  
2019 ◽  
Vol 4686 (3) ◽  
pp. 435-445
Author(s):  
M. JARED THOMAS ◽  
JOSIP SKEJO ◽  
SAM W. HEADS

A new genus and species of pygmy grasshopper (Orthoptera: Tetrigidae) is described from Eocene Baltic amber. Danatettix hoffeinsorum gen. et sp. nov. is assigned to the subfamily Batrachideinae based on antennae with more than 19 antennomeres, sulcate mesofemora, and rectangular paranota. This species is readily distinguished from other batrachideines by a markedly produced vertex, pronotum with divergent internal and external lateral carinae, and highly setiferous female lateral basivalvular sclerite with scabrose integument. The morphology of Danatettix suggests placement within the here defined Tettigidea genus group (comprising Eutettigidea Hancock, 1914, Paurotarsus Hancock, 1900, and Tettigidea Scudder, 1862) and suggests that the latter had diverged from the new Scaria genus group (comprising Eotetrix Gorochov, 2012, Rehnidium Grant, 1956 and Scaria Bolívar, 1887) by the Early Eocene. 

Zootaxa ◽  
2015 ◽  
Vol 4058 (1) ◽  
pp. 119 ◽  
Author(s):  
ANDRIS BUKEJS ◽  
MAURIZIO BIONDI ◽  
VITALII I. ALEKSEEV

2012 ◽  
Vol 86 (6) ◽  
pp. 973-978 ◽  
Author(s):  
Gregg F. Gunnell

Uintasoricines are diminutive plesiadapiforms that are found in the latest Paleocene through middle Eocene, predominantly in North America. They are not a diverse group but individual species may be locally abundant and they are a persistent element of the plesiadapiform radiation in North America surviving over a span of approximately 16 million years. Recent field work in southern Wyoming at South Pass has led to the discovery of a new genus and species of uintasoricine. The new form is smaller in tooth dimensions compared to other known uintasoricines, being slightly smaller thanUintasorex montezumicusfrom California. Both the newly described taxon andU. montezumicusare among the smallest plesiadapiforms yet known with body weights estimated to be 20 to 25 g. The sediments of the Cathedral Bluffs Tongue of the Wasatch Formation at South Pass contain a unique upland fauna—the presence of a distinctive uintasoricine in this assemblage adds further evidence to support the notion that this upland environment was a biodiversity hotspot during the latest early Eocene.


Zootaxa ◽  
2009 ◽  
Vol 2063 (1) ◽  
pp. 55-63 ◽  
Author(s):  
VLADIMIR N. MAKARKIN ◽  
S. BRUCE ARCHIBALD

A new genus and species Allorapisma chuorum gen. sp. nov. is described from the Early Eocene locality at Republic, Washington, U.S.A. The forewing venation of Allorapisma is most similar to that of the genus Principiala Makarkin & Menon from the Early Cretaceous of Brazil and Britain. A new, informal suprageneric taxon consisting of these genera is proposed, the Principiala group. The habitats of extant and fossil Ithonidae are briefly discussed.


2005 ◽  
Vol 36 (2) ◽  
pp. 161-172 ◽  
Author(s):  
Jacek Szwedo

AbstractThe tribal classification of Derbidae with respect to Otiocerini is presented and discussed. Key to extant and fossil genera of Otiocerini is provided. New genus and species from Eocene Baltic amber – Lugeilangor elektrokleistis gen. n. et sp. n. of Derbidae tribe Otiocerini Muir is described. It seems to be related to the extant Asian-Pacific genera Paralyricen Muir, 1913, and Flaccia Stål, 1866. It is the second record of the family Derbidae in Eocene Baltic amber inclusions. Palaeobiological and biogeographical significance of the fossil is discussed.


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3313 ◽  
Author(s):  
Frauke Stebner ◽  
Hukam Singh ◽  
Jes Rust ◽  
David A. Grimaldi

One new genus and three new species of Lygistorrhinidae in early Eocene Cambay amber from India are described, which significantly increases our knowledge about this group in the Eocene.Lygistorrhina indican. sp. is the oldest fossil known from this extant genus.Indorrhina sahniin. gen. et sp. shows morphological similarities to each of the two extant generaLygistorrhinaandAsiorrhina.Palaeognoriste orientaleis the third species known from a group that has only been recorded from Eocene Baltic amber before. The latter finding reveals faunal links between Cambay amber and the probably slightly younger Baltic amber, adding further evidence that faunal exchange between Europe/Asia and India took place before the formation of Cambay amber.


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