Stethaulax marmorata
This record describes Stethaulax marmorata (species). Recorded family: Scutelleridae. Recorded order: Hemiptera.
Identification and Appearance

easily confused with Symphylus caribbeanus but head is rather rounded, less pointy; external features distinguishing the two are discussed in ; however, the easiest way to tell the two apart offhand seems to be the profile view, with the dorsum evenly convex in St. marmorata vs humpy, front-heavy in Sy. caribbeanus : (=v=) immature stages described in Walt & McPherson
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Heteroptera
- Superfamily
- Pentatomoidea
- Family
- Scutelleridae (Shield-backed Bugs)
- Subfamily
- Pachycorinae
- Genus
- Stethaulax
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
e. & so.US (NY-FL to IL-TX-s.CA)
Diet and Behavior
Diet: Host plants include several sumac spp. ( Rhus , Anacardiaceae); some Cupressaceae; and possibly several other plants where it's been collected
Additional species information
Species notes from the sources
Etymology: Stethaulax marmorata (Say 1832)
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Stethaulax marmorata. 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 Stethaulax marmorata (5)
Photo credits: Contributed by v belov; Additional contributions by Mike Quinn
Frequently Asked Questions About Stethaulax marmorata
What is Stethaulax marmorata?
Stethaulax marmorata is a species in the family Scutelleridae, within the order Hemiptera.
How big is Stethaulax marmorata?
6‒8.7 mm
How do you identify Stethaulax marmorata?
easily confused with Symphylus caribbeanus but head is rather rounded, less pointy; external features distinguishing the two are discussed in ; however, the easiest way to tell the two apart offhand seems to be the profile view, with the dorsum evenly convex in St. marmorata vs humpy, front-heavy in Sy. caribbeanus : (=v=)
Where is Stethaulax marmorata found?
Range: e. & so.US (NY-FL to IL-TX-s.CA)
What does Stethaulax marmorata eat?
The diet of the Stethaulax marmorata includes Host plants include several sumac spp. ( Rhus , Anacardiaceae); some Cupressaceae; and possibly several other plants where it's been collected.
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