ColeopteraCarabidae – Ground Beetles

Tule Beetle

Tanystoma maculicolle

This record describes Tanystoma maculicolle (species). Recorded family: Carabidae. Recorded order: Coleoptera.

Identification and Appearance

Tule Beetle - Tanystoma maculicolle
Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude

Wings are dimorphic. At dusk, usually after rain in the fall, beetles may enter houses in large numbers.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Adephaga
Family
Carabidae (Ground Beetles)
Subfamily
Harpalinae
Tribe
Platynini
Genus
Tanystoma

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

Habitat and Range

Habitat

typically breeds in the tule or bulrush ( Scirpus ) marshes along rivers

Geographic Range

Southern Oregon and much of California

Additional species information

Species notes from the sources

Etymology: Tanystoma maculicolle (Dejean 1828)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Tanystoma maculicolle. 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 Tule Beetle (5)

Tule Beetle - photo 1
Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude
Tule Beetle - photo 2
Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude
Tule Beetle - photo 3
Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude
Tule Beetle - photo 4
Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude
Tule Beetle - photo 5
Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude

Photo credits: Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude

Frequently Asked Questions About Tule Beetle

What is Tule Beetle?

Tule Beetle (Tanystoma maculicolle) is a species in the family Carabidae, within the order Coleoptera.

How big is Tule Beetle?

8–10 mm

Where is Tule Beetle found?
FeatureDetails
Habitattypically breeds in the tule or bulrush ( Scirpus ) marshes along rivers
RangeSouthern Oregon and much of California

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

Photo credits: Contributed by Jim McClarin; Additional contributions by Bug Eric , Bbarnd , v belov , Hisserdude. Contributors retain copyright over their individual contributions.