Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Elasmostethus cruciatus - Red-Cross Shield Bug

Two green bugs with red antennae - Elasmostethus cruciatus Acanthosomatidae  01 - Elasmostethus cruciatus Red-cross Shield Bug nymph - Elasmostethus cruciatus Shieldbug  - Elasmostethus cruciatus Elasmostethus cruciatus Red-Cross Shield Bug - Elasmostethus cruciatus Red-cross Shield Bug - Elasmostethus cruciatus Elasmostethus cruciatus  - Elasmostethus cruciatus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Pentatomomorpha
Superfamily Pentatomoidea
Family Acanthosomatidae (Shield Bugs)
Genus Elasmostethus
Species cruciatus (Red-Cross Shield Bug)
Explanation of Names
Elasmostethus cruciatus (Say 1831)
cruciatus = 'crossed' (refers to dorsal markings)
8-10 mm(1)

det. tom murray, 2009
southern Can, n. US, mountainous west, Appalachians, otherwise absent from e. US (see BG data) (1)(2)(3)(4)
mostly May-Oct (BG data)
host: alder - Alnus (Betulaceae)(1)
Life Cycle
overwinters as an adult beneath leaf litter, bark, etc.
Works Cited
1.The Pentatomoidea (Hemiptera) of Northeastern North America
J.E. McPherson. 1982. Southern Illinois University Press.
2.The Acanthosomatidae (Heteroptera) of North America
Thomas D.B., Jr. 1991. Pan-Pacific Entomologist 67(3): 159-170.
3.Additional provincial and state records for Heteroptera (Hemiptera) in Canada and the United States
Scudder G.G.E. 2012. J. Ent. Soc. Brit. Columbia 109: 55-69.
4.Catalog of the Heteroptera, or True Bugs of Canada and the Continental United States
Thomas J. Henry, Richard C. Froeschner. 1988. Brill Academic Publishers.