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

National Moth Week photos of insects and people. Here's how to add your images.

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

Discussion, 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

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


Species Cryptocephalus castaneus

which beetle ? - Cryptocephalus castaneus Calligraphy beetle, perhaps? - Cryptocephalus castaneus Cryptocephalus castaneus? - Cryptocephalus castaneus Cryptocephalus sp.? - Cryptocephalus castaneus Which species of Casebearer Beetle is this? - Cryptocephalus castaneus Small Orange & Black Beetle - Cryptocephalus castaneus Cryptocephalus castaneus? - Cryptocephalus castaneus Unknown Beetle - Cryptocephalus castaneus
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 Chrysomelidae (Leaf Beetles)
Subfamily Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Cryptocephalini
Subtribe Cryptocephalina
Genus Cryptocephalus
No Taxon (Cupressi group)
Species castaneus (Cryptocephalus castaneus)
Explanation of Names
Cryptocephalus castaneus J. L. LeConte 1880
castaneus (L). "the chestnut" (1), which presumably refers to chestnut-brown markings (and not a host reference).
Length: 3.9 to 5.3 mm. (2)
The alternately black and pale striped pronotum, elytral basal spots and medial spots of fused at suture key this one out. … John R. Watts, 8 July, 2008
CA (+ AZ, 2 spmns and NM, 2 spmns) - Map (3)(4)
109 specimens in the USNM collection, only two specimens represent the Arizona record and a single one the New Mexico record; the other 106 specimens are from California. (2)
May-Oct (BG data)
Label data record specimens as occurring on strawberry, willows, blackberry, holly, and alfalfa. (2)
Clark et al. (2004) coll'ed "a very large series" in Calif. from yerba mansa - Anemopsis californica (Saururaceae) (5)
At one extreme of development of the color pattern, each elytron bears two large discal spots and four smaller spots laterally; often the discal spots are confluent at the suture.
At the other extreme, the discal spots of each elytron are broadly confluent, thus forming a broad vitta; sometimes these vittae meet at the suture, usually they do not.
Those specimens bearing broad vittae have three or four lateral spots. (2)
See Also
Cryptocephalus leucomelas Suffrian
- Range: AZ-FL-NJ-NV
Det. Guy A. Hanley, 2011
Print References
LeConte, J.L. 1880. Short studies of North American Coleoptera. Transactions of the American. Entomological Society 8: 163–218.
Internet References
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.A review of the genus Cryptocephalus in America north of Mexico (Chrysomelidae: Coleoptera).
White, R.E. 1968. USNM Bulletin 290. 124 pp.
3.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.
4.Global Biodiversity Information Facility (GBIF)
5.Host plants of leaf beetle species occurring in the United States and Canada
Clark et al. 2004. Coleopterists Society, Special Publication no. 2, 476 pp.