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Genus Euschistus

Rice - Euschistus servus Stinker - Euschistus tristigmus Which bug? - Euschistus inflatus pentatomid - Euschistus Stinkbug Nymph for ID - Euschistus stink bug species? - Euschistus ictericus Euschistus servus? - Euschistus quadrator stink bugs - Euschistus - male - female
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 Pentatomoidea
Family Pentatomidae (Stink Bugs)
Subfamily Pentatominae
Tribe Carpocorini
Genus Euschistus
Explanation of Names
Euschistus Dallas 1851
Numbers
20 spp. in our area, all in the nominate subgenus(1), >70 spp. in 4 subgenera total(2)
_____________________________
spp. not yet in the guide are all confined in our area to AZ and are apparently quite uncommon there (no US specimens in TAMUIC). =v=
Size
8-15 mm
Identification
One thing that all the Euschistus spp. have in common, besides being brown, is a vague, barely visible dark patch in the center of the scutellum and a smaller matching spot on each upper wing half. These look more like smudges than markings, and are more visible in certain light conditions and at certain angles.(3)
Rear tibia grooved above:

most of our spp. are treated in detail in (4)
Guide to c. TX spp. in (5)
(6)
Range
New World, by far most diverse in the Neotropics(7)
Habitat
Woodlands, cultivated land, orchards
Food
plant juices; may be destructive to crops, esp. fruits
occasional predation observed (Culliney 1985)
Remarks
"Perhaps the most common of all stink bugs [at least in Texas] are in the genus Euschistus"(3)
See Also
Menecles, Podisus [superficially similar, note different structure of beak(8)]

Podisus spp. legs lack spots(3)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Rider D. (2006-2013) Pentatomoidea home page
3.Austin bug collection
4.Revision of the genus Euschistus in Middle America (Hemiptera, Pentatomidae, Pentatomini)
L.H.Rolston. 1974. Entomologica Americana 48, 1:1-102 .
5.A visual guide for identification of Euschistus spp. (Hemiptera: Pentatomidae) in central Texas
JF Esquivel, RM Anderson, and RE Droleskey. 2009. Southwestern Entomologist 34:485-488. .
6.Key to the Males of the Nominate Subgenus of Euschistus in South America, with Descriptions of Three New Species (Hemiptera: Pen
L. H. Rolston. Journal of the New York Entomological Society, Vol. 92, No. 4 (Oct., 1984), pp. 352-364.
7.Pentatomidae (Heteroptera) of Honduras: a checklist with description of a new ochlerine genus
Arismendi N., Thomas D.B. 2003. Insecta Mundi 17: 219-236.
8.How to Know the True Bugs
Slater, James A., and Baranowski, Richard M. 1978. Wm. C. Brown Company.