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Species Chinavia hilaris - Common Green Stink Bug

Iowa bug - Chinavia hilaris Does this belong in the Family Pentatomidae? Any idea which species? - Chinavia hilaris Hemiptera nymph - Chinavia hilaris Chinavia hilaris Green Stink Bug Eggs and Nymphs - Chinavia hilaris Damaged shield(?) bug - Chinavia hilaris Green and orange bug - Chinavia hilaris Chinavia hilaris
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 Pentatomidae (Stink Bugs)
Subfamily Pentatominae
Tribe Nezarini (Green Stink Bugs and Allies)
Genus Chinavia (Green Stink Bugs)
Species hilaris (Common Green Stink Bug)
Other Common Names
Green Stink Bug
Synonyms and other taxonomic changes
Acrosternum hilare
Explanation of Names
Chinavia hilaris (Say 1832)
hilaris 'lively, cheerful'
13‒19 mm(1)
transcontinental (BC‒NS to CA‒FL to Mexico)(2)
Woodlands, edges, cultivated land
extremely polyphagous: recorded from 20 plant families(3); adults and older nymphs prefer developing seeds and fruit. May be a pest on soybean, cotton, fruit trees (esp. peach), and many vegetables(4)(5)
Life Cycle
"Keg-shaped" eggs are attached to the underside of leaves in double rows of twelve or more. One generation per year in North, two in south.
Hatchlings (1st and 2nd instars):

3rd instar:

4th instar:

5th instar:

Our best interpretation based upon photos here(6)
Eastern C. hilaris can be differentiated from C. marginata based on antennal color (bands black and yellow/white in C. hilaris vs black and green in C. marginata) but many western C. hilaris exhibit coloration more consistent with C. marginata. Genetic divergence suggest presence of a cryptic species(7). It is unclear whether these populations represent subspecies or cryptic species. Users are encouraged to post more photos of C. hilaris genitalia.
See Also
Nezara viridula: scutellum has black dot in each basal corner; connexivum uniformly colored; pronotal sides slightly concave in anterior half; spine of ventrite 2 rounded (not pointed); scent gland pore short and broad (vs long & curved); nymphs vary greatly in appearance
Internet References
Species page(8)Fact sheet (Gomez & Mizell 2010)(9)
Works Cited
1.The Pentatomoidea (Hemiptera) of Northeastern North America
J.E. McPherson. 1982. Southern Illinois University Press.
2.A distributional synopsis of the Pentatomidae (Heteroptera) north of Mexico, including new state and provincial records
Rider, D.A. and Swanson, D.R. 2021. Zootaxa, 5015(1), 1–69.
3.Pentatomoidea Host Index
4.Heteroptera of economic importance
Schaefer C.W., Panizzi A.R. (eds). 2000. CRC Press, Boca Raton, FL, 828 pp.
5.Garden Insects of North America : The Ultimate Guide to Backyard Bugs (Princeton Field Guides)
Whitney Cranshaw. 2004. Princeton University Press.
6.Forestry Images: Insects
7.Assessing genetic diversity in four stink bug species, Chinavia hilaris, Chlorochroa uhleri, Chlorochroa sayi, and...
Barman, A. K., Joyce, A. L., Torres, R., & Higbee, B. S. 2017. Journal of Economic Entomology.
8.Rider D. (2006-) Pentatomoidea home page
9.University of Florida: Featured Creatures