Ictericus-group
Guides
Euschistus inflatus
Euschistus inflatus is a Nearctic stink bug species in the family Pentatomidae. It was described by Van Duzee in 1903 and is found in North America. The species was examined in a 2022 taxonomic revision that formalized the ictericus group within Euschistus (Euschistus), where it was treated as similar and probably related to core group members but not formally included in the group. Host plants documented for this species include Rubus arizonensis, Verbascum thapsus, sugar beets, and green beans.
Euschistus latimarginatus
Euschistus latimarginatus is a stink bug species in the family Pentatomidae, described by Zimmer in 1910. It belongs to the ictericus group within the subgenus Euschistus (Euschistus), as formalized through morphological analysis of male and female genitalia. The species occurs in the Nearctic region, with documented presence in the Nebraska Sandhills. Specific details regarding its biology, host associations, and economic significance remain limited in published literature.
Euschistus tristigmus
Dusky Stink Bug
Euschistus tristigmus, commonly known as the dusky stink bug, is a pentatomid species native to North and Central America. It belongs to the economically important genus Euschistus, which includes several brown stink bug species that are agricultural pests. The species exhibits adult seasonal dimorphism, with morphological differences between spring and summer generations. Research has documented its vertical distribution patterns in pecan orchards, where it shows a preference for canopy habitats compared to the ground-dwelling tendencies of its congener Euschistus servus.
Euschistus tristigmus luridus
Euschistus tristigmus luridus is a subspecies of the brown stink bug Euschistus tristigmus, first described by Dallas in 1851. A 2022 taxonomic revision corroborated Uhler's 1861 proposal to synonymize this subspecies under Euschistus tristigmus tristigmus, based on morphological overlap between subspecies and their sympatric distribution. The taxon was included in a study formalizing the ictericus group within the subgenus Euschistus (Euschistus), though E. tristigmus itself was excluded from this group.
Euschistus tristigmus tristigmus
dusky stink bug
Euschistus tristigmus tristigmus is a Nearctic subspecies of brown stink bug in the family Pentatomidae. It is a member of the ictericus species group, characterized by distinctive male genitalia morphology. Adults exhibit seasonal dimorphism and are active from March through November, with nymphs present June through October. The subspecies is associated with pecan orchards and other woody habitats, showing a pronounced preference for upper canopy levels compared to ground-dwelling congeners.