ColeopteraCarabidae – Ground Beetles

Scaphinotus guyotii

This record describes Scaphinotus guyotii (species). Recorded family: Carabidae. Recorded order: Coleoptera.

Identification and Appearance

Scaphinotus guyotii - Scaphinotus guyotii
Contributed by Kyhl Austin; Additional contributions by Thrasher

Largest and most variable species of Steniridia . Elytra markedly convex and relatively large compared to body. Color variable: violaceous-black, black, green-black, with or without aeneous reflections. Front tarsi of male very narrow and with much reduced pad of setae on first segment. Median lobe of aedeagus distinctive - markedly constricted at base . Range encompasses both sides of French Broad River, which normally serves as an effective barrier to other flightless mountain species .

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Adephaga
Family
Carabidae (Ground Beetles)
Subfamily
Carabinae
Tribe
Cychrini
Genus
Scaphinotus (Snail Carabids)

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Shaded mountain-side ravines, mountain-top spruce forests (3500-6000ft). Nocturnal. ( 4 )

Geographic Range

Appalachian Mountains, from the New River Gorge in Fayette Co, WV south to northeast GA ( 3 ) .

Seasonal Activity

May-September ( 4 ) .

Diet and Behavior

Diet: Snails ( 4 ) .

Additional species information

Species notes from the sources

Etymology: Scaphinotus guyotii (LeConte, 1863)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Scaphinotus guyotii. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Photos of Scaphinotus guyotii (2)

Scaphinotus guyotii - photo 1
Contributed by Kyhl Austin; Additional contributions by Thrasher
Scaphinotus guyotii - photo 2
Contributed by Kyhl Austin; Additional contributions by Thrasher

Photo credits: Contributed by Kyhl Austin; Additional contributions by Thrasher

Frequently Asked Questions About Scaphinotus guyotii

What is Scaphinotus guyotii?

Scaphinotus guyotii is a species in the family Carabidae, within the order Coleoptera.

How big is Scaphinotus guyotii?

25.0-31.2 mm .

How do you identify Scaphinotus guyotii?

Largest and most variable species of Steniridia . Elytra markedly convex and relatively large compared to body. Color variable: violaceous-black, black, green-black, with or without aeneous reflections. Front tarsi of male very narrow and with much reduced pad of setae on first segment. Median lobe of aedeagus distinctive - markedly constricted at base .

Where is Scaphinotus guyotii found?
FeatureDetails
HabitatShaded mountain-side ravines, mountain-top spruce forests (3500-6000ft). Nocturnal. ( 4 )
RangeAppalachian Mountains, from the New River Gorge in Fayette Co, WV south to northeast GA ( 3 ) .
What does Scaphinotus guyotii eat?

The diet of the Scaphinotus guyotii includes Snails ( 4 ) ..

When is Scaphinotus guyotii active?

Scaphinotus guyotii: seasonal activity - May-September ( 4 ) ..

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Kyhl Austin; Additional contributions by Thrasher. Contributors retain copyright over their individual contributions.