ColeopteraCerambycidae – Longhorn Beetles

Zagymnus clerinus

This record describes Zagymnus clerinus (species). Recorded family: Cerambycidae. Recorded order: Coleoptera.

Identification and Appearance

Zagymnus clerinus - Zagymnus clerinus
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin

Orange pattern can be reduced or even absent Populations of Zagymnus clerinus and other Agallissini species can be located by finding their distinctly elliptical exit holes in the dead petioles of Palmetto trees. This has led to the discovery of the anthropogenic translocation of the species, as well as Osmopleura chamaeropis , across the East coast of the United States through the shipping of Florida nursery Palmettos for the landscape trade. As a result, Zagymnus clerinus has been able to sucessfully establish populations in native stands of Palmettos in at least SC and TX in recent years. ( 3 )

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Cerambycidae (Longhorn Beetles)
Subfamily
Cerambycinae
Tribe
Agallissini
Genus
Zagymnus

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

Habitat and Range

Habitat

coastal sabal habitats

Geographic Range

coastal s.TX-s.-FL-e.SC / Cuba - Map , most records FL-SC

Seasonal Activity

adults of this uncommon sp. ( 5 ) are active Apr-Jul in FL (BG data)

Diet and Behavior

Diet: Larvae feed and develop inside dead Sabal palmetto and Sabal mexicana petioles.

Life History

Eggs are laid in late summer indiscriminately on the surface or broken tips of Sabal sp. petioles. Larvae feed on the woody longitudinal fibers of the petiole. Larval tunnels are usually 30cm long by 3cm wide and ~1cm deep. Larvae may take a year or more to develop and 2 larvae can develop in each petiole, one on either side of the sagittal plane. Larvae form a pupal chamber and pupate in late spring. Adults exit the petiole by chewing an elliptical hole through the surface that's approximately 10mm by 5mm. ( 3 )

Additional species information

Species notes from the sources

Etymology: Clerid-like

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Zagymnus clerinus. 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 Zagymnus clerinus (5)

Zagymnus clerinus - photo 1
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin
Zagymnus clerinus - photo 2
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin
Zagymnus clerinus - photo 3
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin
Zagymnus clerinus - photo 4
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin
Zagymnus clerinus - photo 5
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin

Photo credits: Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin

Frequently Asked Questions About Zagymnus clerinus

What is Zagymnus clerinus?

Zagymnus clerinus is a species in the family Cerambycidae, within the order Coleoptera.

How big is Zagymnus clerinus?

13-17 mm (FSCA)

How do you identify Zagymnus clerinus?

Orange pattern can be reduced or even absent

Where is Zagymnus clerinus found?
FeatureDetails
Habitatcoastal sabal habitats
Rangecoastal s.TX-s.-FL-e.SC / Cuba - Map , most records FL-SC
What does Zagymnus clerinus eat?

The diet of the Zagymnus clerinus includes Larvae feed and develop inside dead Sabal palmetto and Sabal mexicana petioles..

When is Zagymnus clerinus active?

Zagymnus clerinus: seasonal activity - adults of this uncommon sp. ( 5 ) are active Apr-Jul in FL (BG data).

What is the life cycle of a Zagymnus clerinus?

Eggs are laid in late summer indiscriminately on the surface or broken tips of Sabal sp. petioles. Larvae feed on the woody longitudinal fibers of the petiole. Larval tunnels are usually 30cm long by 3cm wide and ~1cm deep. Larvae may take a year or more to develop and 2 larvae can develop in each petiole, one on either side of the sagittal plane. Larvae form a pupal chamber and pupate in late spring. Adults exit the petiole by chewing an elliptical hole through the surface that's approximately 10mm by 5mm. ( 3 )

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

Photo credits: Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , Tom Austin. Contributors retain copyright over their individual contributions.