ColeopteraChrysomelidae – Leaf Beetles

Aulacothorax melina

This record describes Aulacothorax melina (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Aulacothorax melina - Aulacothorax melina
(c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos

Aulacothorax melinus, the poison ivy leaf beetle, is a species of leaf beetle in the family Chrysomelidae, formerly in the genus Orthaltica. It is found in North America.

Wikipedia reference for Aulacothorax melina: https://en.wikipedia.org/wiki/Aulacothorax_melinus.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Galerucinae
Tribe
Serraticollini
Genus
Aulacothorax

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

Habitat and Range

Geographic Range

Roughly: TX-AL-WV-PA-SD - Map , uncommon

Seasonal Activity

Apr-June (BG data)

Diet and Behavior

Diet: on sumac ( Rhus spp.) and poison ivy ( Toxicodendron radicans , Anacardiaceae) ( 3 )

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Aulacothorax melina. 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 Aulacothorax melina (4)

Aulacothorax melina - photo 1
(c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn; Additional contributions by Beatriz Moisset , Deczynski , v belov
Aulacothorax melina - photo 2
(c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn; Additional contributions by Beatriz Moisset , Deczynski , v belov
Aulacothorax melina - photo 3
(c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn; Additional contributions by Beatriz Moisset , Deczynski , v belov
Aulacothorax melina - photo 4
(c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn; Additional contributions by Beatriz Moisset , Deczynski , v belov

Photo credits: (c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn; Additional contributions by Beatriz Moisset , Deczynski , v belov

Frequently Asked Questions About Aulacothorax melina

What is Aulacothorax melina?

Aulacothorax melina is a species in the family Chrysomelidae, within the order Coleoptera.

How big is Aulacothorax melina?

1.5-2 mm (Horn 1889)

Where is Aulacothorax melina found?

Range: Roughly: TX-AL-WV-PA-SD - Map , uncommon

What does Aulacothorax melina eat?

The diet of the Aulacothorax melina includes on sumac ( Rhus spp.) and poison ivy ( Toxicodendron radicans , Anacardiaceae) ( 3 ).

When is Aulacothorax melina active?

Aulacothorax melina: seasonal activity - Apr-June (BG data).

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

Photo credits: (c) Mike Quinn, San Marcos, some rights reserved (CC BY-NC), uploaded by Mike Quinn, San Marcos | Contributed by Mike Quinn; Additional contributions by Beatriz Moisset , Deczynski , v belov. Contributors retain copyright over their individual contributions.