ColeopteraChrysomelidae – Leaf Beetles

Sennius leucostauros

This record describes Sennius leucostauros (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Sennius leucostauros - Sennius leucostauros
Contributed by Mike Quinn

Integument black; antenna reddish brown, fore legs and mid legs reddish brown, metafemoral base black, apical one-third to one-half red. Vestiture white and dark brown; pronotum with median stripe and lateral patches white; scutellum white; elytra black, dorsal setal pattern of brief basal patches, sutural stripe, and transverse median band white, remainder of each elytron with dark brown vestiture (figure 875); pygidium with median stripe and lateral patches white (figure 876); venter of body uniformly white. Paratype Type locality: Mexico, Oaxaca, Temascal

Classification

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

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

Habitat and Range

Geographic Range

southmost TX (Cameron Co.) to Guatemala - Map

Diet and Behavior

Diet: Senna bicapsularis bicapsularis

Additional species information

Species notes from the sources

Etymology: Sennius leucostauros Johnson and Kingsolver 1973

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Sennius leucostauros. 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 Sennius leucostauros (2)

Sennius leucostauros - photo 1
Contributed by Mike Quinn
Sennius leucostauros - photo 2
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Sennius leucostauros

What is Sennius leucostauros?

Sennius leucostauros is a species in the family Chrysomelidae, within the order Coleoptera.

How big is Sennius leucostauros?

Body length 1.8–2.3 mm

How do you identify Sennius leucostauros?

Integument black; antenna reddish brown, fore legs and mid legs reddish brown, metafemoral base black, apical one-third to one-half red. Vestiture white and dark brown; pronotum with median stripe and lateral patches white; scutellum white; elytra black, dorsal setal pattern of brief basal patches, sutural stripe, and transverse median band white, remainder of each elytron with dark brown vestiture (figure 875); pygidium with median stripe and lateral patches white (figure 876); venter of body uniformly white. Paratype

Where is Sennius leucostauros found?

Range: southmost TX (Cameron Co.) to Guatemala - Map

What does Sennius leucostauros eat?

The diet of the Sennius leucostauros includes Senna bicapsularis bicapsularis.

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

Photo credits: Contributed by Mike Quinn. Contributors retain copyright over their individual contributions.