One-spotted Stink Bug
Euschistus variolarius
This record describes Euschistus variolarius (species). Recorded family: Pentatomidae. Recorded order: Hemiptera.
Identification and Appearance
The only reliable way to separate variolarius from servus is a ventral view. E. variolarius males have one big spot on the pygophore; servus , none. females have no dark spot at anterior corner on the edge of each abdominal segment (present in servus ) (D.B. Thomas, pers. comm. to =v=, 11.v.2009) minor pest of vegetables and fruit/buds ( 4 )
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Heteroptera
- Superfamily
- Pentatomoidea
- Family
- Pentatomidae (Stink Bugs)
- Subfamily
- Pentatominae
- Tribe
- Carpocorini
- Genus
- Euschistus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
transcontinental (BC‒NS to OR‒UT‒NM‒FL) , scarce in the south
Diet and Behavior
Diet: polyphagous (recorded from >25 spp. in 15 plant families) ( 3 )
Life History
1‒2 generations a year Nymphs
Additional species information
Species notes from the sources
Etymology: Euschistus variolarius (Palisot de Beauvois 1805)
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Euschistus variolarius. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of One-spotted Stink Bug (5)
Photo credits: Contributed by Will Chatfield-Taylor; Additional contributions by Beatriz Moisset , Mike Quinn , v belov , marcie oconnor
Frequently Asked Questions About One-spotted Stink Bug
What is One-spotted Stink Bug?
One-spotted Stink Bug (Euschistus variolarius) is a species in the family Pentatomidae, within the order Hemiptera.
How big is One-spotted Stink Bug?
11‒15 mm
How do you identify One-spotted Stink Bug?
The only reliable way to separate variolarius from servus is a ventral view. E. variolarius males have one big spot on the pygophore; servus , none. females have no dark spot at anterior corner on the edge of each abdominal segment (present in servus ) (D.B. Thomas, pers. comm. to =v=, 11.v.2009)
Where is One-spotted Stink Bug found?
Range: transcontinental (BC‒NS to OR‒UT‒NM‒FL) , scarce in the south
What does One-spotted Stink Bug eat?
The diet of the One-spotted Stink Bug includes polyphagous (recorded from >25 spp. in 15 plant families) ( 3 ).
What is the life cycle of a One-spotted Stink Bug?
1‒2 generations a year Nymphs