Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12


Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Jassa marmorata

Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata IMG_1612 - Jassa marmorata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Malacostraca (Malacostracans)
Superorder Peracarida (Marsupial Crustaceans)
Order Amphipoda (Amphipods)
Suborder Senticaudata
Family Ischyroceridae
Genus Jassa
Species marmorata (Jassa marmorata)
Explanation of Names
Jassa marmorata Holmes 1905
Identification
Patterning generally distinctive; for more solidly colored individuals, the following characters separate from Ischyrocerus anguipes:
Propodus of second chela is much larger than that of the first chela in both sexes (in I. anguipes, only the male has such an enlarged propodus)
Hind margin of propodus of second chela with prominent tooth (absent in I. anguipes)
Second coxae dissimilar from third coxae (very similar in I. anguipes)(1)
Internet References
Works Cited
1.The Arthrostraca of Connecticut
Kunkel B.W. 1918. Connecticut State Geological and Natural History Survey.