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

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.
Photos of Sennius leucostauros (2)
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.
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