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


Confluentus group

Small brown beetles - Cryptocephalus spurcus Cryptocephalus fulguratus LeConte - Cryptocephalus fulguratus Cryptocephalus fulguratus LeConte - Cryptocephalus fulguratus Cryptocephalus alternans Suffrian  - Cryptocephalus alternans Cryptocephalus confluentus Say  - Cryptocephalus confluentus Cryptocephalus cerinus White  - Cryptocephalus cerinus Cryptocephalus spurcus vandykei B. White  - Cryptocephalus spurcus Cryptocephalus luteolus Newman - Cryptocephalus luteolus
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 Chrysomelidae (Leaf Beetles)
Subfamily Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Cryptocephalini
Subtribe Cryptocephalina
Genus Cryptocephalus
No Taxon Confluentus group
10 nominate spp. (alternans, brunneovittatus, cerinus, confluentus, defectus, dorsatus, fulguratus, luteolus, pumilus, spurcus), but defectus & luteolus may turn out to be but pale forms of C. nanus F. (Ed Riley, pers. comm. to Mike Quinn, 1/29/2010)
across NA, but most diverse in the West and southeast(1)(2)
C. spurcus TX-CA-BC
C. confluentus NM-CA-MT-AB-NE
C. alternans jungovittatus AZ-CA
C. cerinus TX-CA-NV
C. defectus & C. dorsatus TX
C. fulguratus MO to TX & MS
C. brunneovittatus LA, TX; Mexico
C. pumilus Coastal States from NJ to FL to TX
C. luteolus FL, TX
Works Cited
1.A review of the genus Cryptocephalus in America north of Mexico (Chrysomelidae: Coleoptera).
White, R.E. 1968. USNM Bulletin 290. 124 pp.
2.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.