Family Eumastacidae - Monkey Grasshoppers

Classification · Numbers · Identification · Range · Internet References · Works Cited

Unusual grasshopper species - Morsea tamalpaisensis - female

Chaparral Monkey Grasshopper Nymph - Morsea californica - female

Chaparral Monkey Grasshopper - Morsea californica - male

Ball's Monkey Grasshopper - Eumorsea balli - male

Psychomastax psylla found near Big Bear Lake - Psychomastax psylla

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Orthoptera (Grasshoppers, Crickets, Katydids)

Suborder Caelifera (Grasshoppers)

Family Eumastacidae (Monkey Grasshoppers)

Numbers

15 species in 3 genera according to Arnett(1); Orthoptera Species File(2) and Nearctica list 13 species in 3 genera

Identification

Antennae shorter than front femur(1).

Slender, small, mostly under one inch long

Hind legs usually held splayed out to the side.

North American species are wingless.

Range

Mostly tropical; northern limit of range is Southwest USA

Internet References

Hebard 1935 - has key to our three genera

Works Cited

1.	American Insects: A Handbook of the Insects of America North of Mexico Ross H. Arnett. 2000. CRC Press.

2.	Orthoptera Species File Online

Contributed by John F. Carr on 18 October, 2009 - 9:28pm
Additional contributions by David Ferguson, metrioptera
Last updated 9 August, 2016 - 8:18am

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2025 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Printer Friendly Version