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Family Rhopalidae - Scentless Plant Bugs

Representative Images

Eastern Boxelder? - Boisea trivittata - male - female Rhopalid2 - Harmostes reflexulus red nymph - Boisea trivittata red mite and eggs - Boisea trivittata Box elder bug - Boisea trivittata Boisea trivittata - Eastern Boxelder Bug - Boisea trivittata scentless plant bug - Harmostes fraterculus Western Boxelder Bug - Boisea rubrolineata

Classification

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 Coreoidea (Leatherbugs)
Family Rhopalidae (Scentless Plant Bugs)

Synonyms and other taxonomic changes

'Corizidae'

Explanation of Names

Rhopalidae Amyot & Serville 1843
common name refers to the reduced scent gland opening(1)

Numbers

2 subfamilies, with ~40 spp. in 10 genera in our area(2) and >200 spp. in ~20 genera worldwide(1)
Overview of our fauna (classification follows (3))
Family Rhopalidae
Subfamily Rhopalinae
Tribe *Chorosomatini *Chorosoma (not yet in the guide; link to photos of an extralimital sp.)

Size

4‒15+ mm(1)

Identification

No scent glands; membrane with many veins(4)
Keys: eastern spp.(5) • Florida spp. and most NA genera(6)

Range

much of the world, incl. our area(3)

Food

seeds of herbaceous plants, but some are arboreal(7)(8)

See Also

some members of Coreidae and Lygaeoidea look similar, e.g.:

Works Cited

1.Biodiversity of the Heteroptera
Henry T.J. 2009. In: Foottit R.G., Adler P.H., eds. Insect biodiversity: Science and society. Oxford: Wiley-Blackwell: 223−263.
2.The first Chorosoma (Hemiptera: Rhopalidae: Rhopalinae: Chorosomatini) from the New World: Chorosoma josifovi nov. sp.
Schwartz M.D., Schaefer C.W., Lattin J.D. 2008. pp. 339-348 in: Grozeva S., Simov N. (Eds) Advances in Heteroptera research... Pensoft Publishers, Sofia–Moscow.
3.Livermore L.J.R., Lemaître V.A., Dolling W.R., Webb M.D. Coreoidea species file online. Version 5.0
4.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
5.Rhopalus (Brachycarenus) tigrinus, recently established in North America, with a key to the genera and species of Rhopalidae...
Hoebeke E.R., Wheeler A.G., Jr. 1982. Proc. Ent. Soc. Wash. 84: 213‒224.
6.Steill J., Meyer J. (2003) The Rhopalidae of Florida
7.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.
8.Bugs of the World
George C. McGavin. 1999. Blandford Press.