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

Thomas, M. Jared

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

Description

Title

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

Author(s)

Thomas, M. Jared

Issue Date

2024-12-06

Director of Research (if dissertation) or Advisor (if thesis)

Heads, Sam W

Committee Member(s)

• Suarez, Andrew
• Elrick, Scott

Department of Study

Entomology

Discipline

Entomology

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

M.S.

Degree Level

Thesis

Keyword(s)

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

Language

eng

Abstract

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.

Graduation Semester

2024-12

Type of Resource

Thesis

Handle URL

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

Copyright and License Information

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

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