ColeopteraChrysomelidae – Leaf Beetles

Texas Ebony Bruchid

Merobruchus major

This record describes Merobruchus major (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Texas Ebony Bruchid - Merobruchus major
Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn

Type Locality: Esperanza Ranch, Brownsville, Cameron Co., Texas Both Merobruchus major and Stator beali are seed predators of Ebenopsis (=Pithecellobium) ebano ; however, S. beali also attacks other species of Ebenopsis whereas M. major is an obligate predator of E. ebano .

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Bruchinae
Tribe
Bruchini
Genus
Merobruchus

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

Habitat and Range

Habitat

highly specialized on a Texas Ebony

Geographic Range

s. TX (Corpus, RGV) / Mex. - Map ( 3 )

Seasonal Activity

mostly: May-Oct. (BG data)

Diet and Behavior

Diet: Adults visit flowers, probably consuming nectar or pollen

Life History

Larvae develop within the pods of Texas Ebony - Ebenopsis ebano (= Pithecellobium ebano ) (Fabaceae)

Additional species information

Species notes from the sources

Etymology: largest sp. in this genus.

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Merobruchus major. 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 Texas Ebony Bruchid (5)

Texas Ebony Bruchid - photo 1
Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn
Texas Ebony Bruchid - photo 2
Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn
Texas Ebony Bruchid - photo 3
Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn
Texas Ebony Bruchid - photo 4
Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn
Texas Ebony Bruchid - photo 5
Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn

Photo credits: Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn

Frequently Asked Questions About Texas Ebony Bruchid

What is Texas Ebony Bruchid?

Texas Ebony Bruchid (Merobruchus major) is a species in the family Chrysomelidae, within the order Coleoptera.

How big is Texas Ebony Bruchid?

length 5.2-8.8 mm

Where is Texas Ebony Bruchid found?
FeatureDetails
Habitathighly specialized on a Texas Ebony
Ranges. TX (Corpus, RGV) / Mex. - Map ( 3 )
What does Texas Ebony Bruchid eat?

The diet of the Texas Ebony Bruchid includes Adults visit flowers, probably consuming nectar or pollen.

When is Texas Ebony Bruchid active?

Texas Ebony Bruchid: seasonal activity - mostly: May-Oct. (BG data).

What is the life cycle of a Texas Ebony Bruchid?

Larvae develop within the pods of Texas Ebony - Ebenopsis ebano (= Pithecellobium ebano ) (Fabaceae)

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

Photo credits: Contributed by Joshua Stuart Rose; Additional contributions by Mike Quinn. Contributors retain copyright over their individual contributions.