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Species Thyanta calceata

Thyanta? - Thyanta calceata Green bug, Pentatomidae family ?  - Thyanta calceata Thyanta calceata? - Thyanta calceata Thyanta calceata? - Thyanta calceata  nymph  - Thyanta calceata Thyanta calceata Thyanta calceata stink bug or shield bug - Thyanta calceata
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 Pentatomini
Genus Thyanta
No Taxon (subgenus Thyanta)
Species calceata (Thyanta calceata)
Explanation of Names
Thyanta calceata (Say 1831)
7.0-10.5 mm(1)
overwintering forms often, but not always, brown, e.g.:

Can be distinguished from the similar Thyanta custator accerra by the presence of black anterolateral margins of the pronotum but this character is not sufficient to distinguish T. calceata from T. custator custator. Where their ranges overlap, across the atlantic coastal plain, examination of the male genitalia is necessary to distinguish the species. Based on the distribution maps, T. calceata should be absent in central or southern Florida, so specimens with a black anterolateral margin from that location are likely to be T. custator custator (2).
e. US (MA-MI-e.KS to n.FL-e.TX)(2)
Life Cycle
5th instar nymph: .
The 5th instar nymph also appears to have a black anterolateral margin of the pronotum.
See Also
Thyanta custator accerra and Thyanta custator custator.
Print References
McPherson, J.E. 1977. Notes on the biology of Thyanta calceata (Hemiptera: Pentatomidae) with information on adult seasonal dimorphism. Annals of the Entomological Society of America 70(3): 370-372.
Works Cited
1.The Pentatomoidea (Hemiptera) of Northeastern North America
J.E. McPherson. 1982. Southern Illinois University Press.
2.Revision of the genus Thyanta Stål, 1862 (Heteroptera: Pentatomidae). II. Central America, North America, and the West Indies
Rider D.A., Chapin J.B. 1992. J. N.Y. Ent. Soc. 100: 42-98.