A new genus and species of pygmy grasshopper (Orthoptera: Tetrigidae) from Eocene Baltic amber

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.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Entomology

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2024

Author dc:creator

• Thomas, M. Jared

Contributors dc:contributor

• Heads, Sam W
• Suarez, Andrew
• Elrick, Scott

• Caelifera
• Tetrigoidea
• Pygmy Locusts
• Grouse Locusts
• Groundhoppers
• Cenozoic
• Paleogene
• Baltic Amber
• Fossil Insects

Statement dc:rights

• Previously published under the following: Accepted by R. Mariño-Pérez: 18 Sept. 2019; published: 16 Oct. 2019 Licensed under a Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0

Language dc:language

en, eng

Handle dc:identifier

https://hdl.handle.net/2142/127267

OAI record oai:identifier

https://www.ideals.illinois.edu/oai-pmh?verb=GetRecord&metadataPrefix=etdms&identifier=oai%3Awww.ideals.illinois.edu%3A2142%2F127267