ColeopteraChrysomelidae – Leaf Beetles

Sennius cruentatus

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

Identification and Appearance

Sennius cruentatus - Sennius cruentatus
Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov

The shape of the elytral maculation will usually separate S. cruentatus from all the U.S. species except S. simulans , which is only known from AZ. Has an all-black form

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

e. US to MN-SD-OK / Mex. - Map

Diet and Behavior

Diet: Chamaecrista fasciculata , Ch. n. nictitans ; Parkinsonia sp.

Life History

Often collected in inflorescences of other plant species and in spanish moss ( Tillandsia usneoides ) as a hibernaculum.

Additional species information

Species notes from the sources

Etymology: Sennius cruentatus (Horn)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Sennius cruentatus. 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 cruentatus (4)

Sennius cruentatus - photo 1
Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov
Sennius cruentatus - photo 2
Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov
Sennius cruentatus - photo 3
Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov
Sennius cruentatus - photo 4
Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov

Frequently Asked Questions About Sennius cruentatus

What is Sennius cruentatus?

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

How big is Sennius cruentatus?

1.6-2.9 mm

How do you identify Sennius cruentatus?

The shape of the elytral maculation will usually separate S. cruentatus from all the U.S. species except S. simulans , which is only known from AZ.

Where is Sennius cruentatus found?

Range: e. US to MN-SD-OK / Mex. - Map

What does Sennius cruentatus eat?

The diet of the Sennius cruentatus includes Chamaecrista fasciculata , Ch. n. nictitans ; Parkinsonia sp..

What is the life cycle of a Sennius cruentatus?

Often collected in inflorescences of other plant species and in spanish moss ( Tillandsia usneoides ) as a hibernaculum.

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

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn , v belov. Contributors retain copyright over their individual contributions.