ColeopteraCarabidae – Ground Beetles

Brachinus elongatulus

This record describes Brachinus elongatulus (species). Recorded family: Carabidae. Recorded order: Coleoptera.

Identification and Appearance

Brachinus elongatulus - Brachinus elongatulus
(c) Katja Schulz, some rights reserved (CC BY). https://creativecommons.org/licenses/by/4.0/ Source: https://www.inaturalist.org/observations/8213772

differs from very similar B. texanus, B. elongatulus in that it has a limited southwestern range; elytra distinctly broader, with more prominent costae, and bluish reflection (may not be visible at all angles, not grey-greenish); and usualy darker tarsi. Elytra bright blue, usually metallic - to separate from B. texanus tibiae and tarsi may or may not be infuscated.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Adephaga
Family
Carabidae (Ground Beetles)
Subfamily
Brachininae
Genus
Brachinus (Bombardier Beetles)

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

Habitat and Range

Geographic Range

w. US (OR-CA-w.TX-w.OK) to Oaxaca, Mex. - Map , most US records from AZ - 3,810 spmns

Additional species information

Species notes from the sources

Etymology: Brachinus elongatulus Chaudoir 1876

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Brachinus elongatulus. 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 Brachinus elongatulus (6)

Brachinus elongatulus - photo 1
(c) Katja Schulz, some rights reserved (CC BY). https://creativecommons.org/licenses/by/4.0/ Source: https://www.inaturalist.org/observations/8213772
Brachinus elongatulus - photo 2
Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Brachinus elongatulus - photo 3
Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Brachinus elongatulus - photo 4
Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Brachinus elongatulus - photo 5
Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Brachinus elongatulus - photo 6
Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Photo credits: Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Frequently Asked Questions About Brachinus elongatulus

What is Brachinus elongatulus?

Brachinus elongatulus is a species in the family Carabidae, within the order Coleoptera.

How do you identify Brachinus elongatulus?

differs from very similar B. texanus, B. elongatulus in that it has a limited southwestern range; elytra distinctly broader, with more prominent costae, and bluish reflection (may not be visible at all angles, not grey-greenish); and usualy darker tarsi. Elytra bright blue, usually metallic - to separate from B. texanus tibiae and tarsi may or may not be infuscated.

Where is Brachinus elongatulus found?

Range: w. US (OR-CA-w.TX-w.OK) to Oaxaca, Mex. - Map , most US records from AZ - 3,810 spmns

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

Photo credits: Contributed by Peter W. Messer; Additional contributions by Beatriz Moisset , Mike Quinn , v belov. Contributors retain copyright over their individual contributions.