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Genus Stenocoris - Rice Bugs

Broad-headed Bug - Stenocoris Bentsen Stenocoris, side view - Stenocoris BugsTBID07082014 - Stenocoris little stick - Stenocoris Bug - Stenocoris Unk insect - Stenocoris true bug - Stenocoris Stenocoris
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 Alydidae (Broad-headed Bugs)
Subfamily Micrelytrinae
Genus Stenocoris (Rice Bugs)
Explanation of Names
Stenocoris Burmeister 1839
Numbers
2 spp. of the subgenus Oryzocoris in our area(1) (filiformis and furcifera); S. (S.) tipuloides has also been reported from VA to FL & TX (Hoffman 1994:17)(2), although the US Catalog notes that "The nominate subgenus does not occur in our region."(3); ~20 spp. in 4 subgenera total(4)
Identification
Photo-based identification barely possible. The key below has been designed by D.R. Swanson based on info provided in Ahmad (1965).

1 Posterior angles of pygophore acutely pointed; claspers crossed over pygophore; posterior margin of female seventh abdoinal sternum always with a short median split (subg. Oryzocoris)...2
Posterior angles of pygophore not acutely pointed; claspers crossed in a socket; posterior margin of female seventh abdominal sternum always medially biolobed, never with a split; [venter pale ochraceous]...S. (Stenocoris) tipuloides
2 Median longitudinal red line on ventral abdominal segments present, sometimes faint; pygophore with posterior processes rounded and pointing posteriorly; basal portions of eighth paratergites largely visible...S. (O.) furcifera
Median longitudinal red line absent; pygophore with posterior processes pointed and facing each other; basal portions of eighth paratergites largely concealed by first pair of gonocoxae...S. (O.) filiformis
Range
mostly extreme south (FL-TX)
Remarks
our only representative of the tropical tribe Leptocorisini, that contains a total of 46 spp. in 5 genera(4)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.How to Know the True Bugs
Slater, James A., and Baranowski, Richard M. 1978. Wm. C. Brown Company.
3.Catalog of the Heteroptera, or True Bugs of Canada and the Continental United States
Thomas J. Henry, Richard C. Froeschner. 1988. Brill Academic Publishers.
4.Livermore L.J.R., Lemaître V.A., Dolling W.R., Webb M.D. Coreoidea species file online. Version 5.0