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

Family Rhopalidae - Scentless Plant Bugs

Eastern Boxelder Bug - Boisea trivittata Leaffooted Bug ? - Boisea trivittata Scentless Plant Bug - Harmostes reflexulus  Eastern Boxelder Bug Nymph - Boisea trivittata  - Boisea trivittata Western Boxelder Life Cycle - Adult - Boisea rubrolineata Lygaiedae sp. ? - Harmostes reflexulus - male - female red-eyed black bug in Sabercat Creek Park on morning of 2020 May 27 - Jadera haematoloma Eastern Boxelder Bug (Boisea trivittata) - Boisea trivittata
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
Explanation of Names
Rhopalidae Amyot & Serville 1843
common name refers to the greatly reduced scent gland opening(1)
2 subfamilies, with ~40 spp. in 10 genera in our area(2) and >200 spp. in ~20 genera worldwide(1)
Overview of our fauna (* –taxa not yet in the guide; classification follows(3)):
Family Rhopalidae
Subfamily Rhopalinae
4-15+ mm(1)
No scent glands; many veins on front wing membrane(4)
Resemble small Coreidae. Ocelli distinctly raised.
Key to eastern spp. in(5)
Key to Florida species and most NA genera in(6)
much of the world, incl. our area(3)
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.