oval leaf beetle

(Rhabdopterus spp.)

               
Overview

Rhabdopterus is a genus of oval leaf beetles. They occur in eastern North America, Central America, and western South America. There are about 70 described species worldwide, 8 species in North America north of Mexico, and at least 2 species in Minnesota. It is rare in Minnesota, where it is at the northwest extent of its range. Adults are found in late spring and summer in a variety of habitats feeding on a variety of plants, including oak, carrionflower, and grape. They are active at night and are attracted to lights.

oval leaf beetle (Rhabdopterus sp.)

  Photo by Alfredo Colon
   
   
Identification

Adults are generally oval in shape with straight sides along the middle. They are dark reddish-brown to blackish with a metallic iridescence. The head is fully visible when viewed from above. The exoskeletal plate covering the thorax (pronotum) is smooth, shiny, and covered with very fine pits (punctures). It is narrower than the bases of the hardened wing covers (elytra).

 
Distribution Distribution Map  

Sources: 24, 27, 29, 30, 82.

 
Comments

 

 
Taxonomy

Order:

Coleoptera (beetles)

 

Suborder:

Polyphaga (water, rove, scarab, longhorn, leaf and snout beetles)

 

Infraorder:

Cucujiformia

 

Superfamily:

Chrysomeloidea (long-horned and leaf beetles)

 

Family:

Chrysomelidae (leaf beetles)

 

Subfamily:

Eumolpinae (oval leaf beetles)

 

Tribe:

Eumolpini

 

Subtribe:

Iphimeites

 
Subordinate Taxa

cranberry rootworm (Rhabdopterus picipes)

oval leaf beetle (Rhabdopterus bottimeri)

oval leaf beetle (Rhabdopterus deceptor) (?)

oval leaf beetle (Rhabdopterus fulvipes)

oval leaf beetle (Rhabdopterus guatemalensis)

oval leaf beetle (Rhabdopterus mexicanus)

oval leaf beetle (Rhabdopterus praetextus) (?)

oval leaf beetle (Rhabdopterus weisei)

 
Synonyms

 

 
Common
Names

This genus has no common name. The common name of the subfamily Eumolpinae is oval leaf beetles, and is used here for convenience.

 

 

 

 

 

Glossary

Elytra

The hardened or leathery forewings on an insect used to protect the fragile hindwings, which are used for flying, in beetles and true bugs. Singular: elytron.

 

Pronotum

The saddle-shaped, exoskeletal plate on the upper side of the first segment of the thorax of an insect.

 

 

 

 

 

       
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Alfredo Colon
       
  oval leaf beetle (Rhabdopterus sp.)    
       
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Alfredo Colon
8/6/2019

Location: Woodbury, MN

oval leaf beetle (Rhabdopterus sp.)


     
     
 
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Created: 11/2/2020

Last Updated:

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