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

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


bivittata / nigripennis

Flower Longhorn - Brachysomida Brachysomida bivittata - Brachysomida Flower Longhorn - Brachysomida what species? - Brachysomida unknown beetle - Brachysomida unknown beetle - Brachysomida Beetle - Brachysomida striped longhorn beetle Brachysomida bivittata? - Brachysomida
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 (Longhorn and Leaf Beetles)
Family Cerambycidae (Longhorn Beetles)
Subfamily Lepturinae (Flower Longhorn Beetles)
Tribe Rhagiini
Genus Brachysomida
No Taxon bivittata / nigripennis
Explanation of Names
For some images it is difficult to see the pronotal pubescence to determine the species. This page is for those images where we can be certain it is one of these two species but not certain which one.
B. nigripennis is evidenced by the smooth, shining pronotum without pubescence at the base and along the margins. It lacks the dense punctation along the pronotal midline, and it lacks distinct pubescence on the elytra.
B. bivittata has denser pubescence on the margins and base of the pronotum. See this image for a good example of bivittata
… Robert Androw, 9 January, 2020