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

Upcoming Events

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Judolia instabilis

Judolia instabilis Lepturini (?) - Judolia instabilis Silver Star Mountain Beetle 3 - Judolia instabilis - female longhorns - Judolia instabilis longhorn - Judolia instabilis sub-alpine cerambycid - Judolia instabilis Beetle - Judolia instabilis Bug - Judolia instabilis
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Lepturinae (Flower Longhorns)
Tribe Lepturini
Genus Judolia
Species instabilis (Judolia instabilis)
Synonyms and other taxonomic changes
Judolia instabilis (Haldeman) 1847
Syn: Anoplodera instabilis (Haldeman)
For complete synonymy see Biolib .
10 spp. n. of Mex. (1)
6 - 15 mm (2)

Rather variable, with elytral patterns ranging from all-black to pale yellow with black spots (see Internet References below for photos of type specimen).
w. N. Amer. / NW Mex. (1)
mostly: Jun-Aug (BG data)
Life Cycle
Larvae feed on pines.
See Also
Judolia cordifera--found in East, but possibly some overlap in range
Print References
Yanega, p. 34, figs. 84a, 84b (3)
Internet References
Works Cited
1.A Photographic Catalog of the Cerambycidae of the New World
2.Field Guide to Beetles of California
Arthur V. Evans and James N. Hogue. 2006. University of California Press.
3.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
Douglas Yanega. 1996. Illinois Natural History Survey.