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

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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
Classification
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
Numbers
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)
Range
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.