hispine leaf beetle

(Microrhopala xerene)

               
Conservation Status

IUCN Red List

not yet assessed

hispine leaf beetle (Microrhopala xerene)

NatureServe

NNR - Unranked

Minnesota

not listed

Occurrence

Widely distributed

Flight/Season

 

Habitat

 

Size

Total Length: to 3 16

          Photo by Alfredo Colon

Identification

This is a very small, to 3 16 (3.6 to 4.9 mm) long, leaf-mining beetle. The body is elongated and nearly parallel-sided, only slightly widened toward the rear.

The hardened plate on the upper side of the thorax (pronotum) is black and is narrower than the base of the hardened forewings (elytra).

The elytra have rows of punctures bordered by distinct ridges. There is a red stripe and a red subapical spot on each elytra. The margins of the elytra are toothed (serrated).

The head is black and slants backward. The part of the face between the eyes corresponding to the forehead (frons) is distinctly angled. The eyes are large and black and are not notched. The mouth parts are small. The antennae are black, have eight segments, and are short, less than half as long as the body.

The legs are black. The last part of each leg (tarsus), corresponding to the foot, is black and has five segments. The fourth segment is very short and is concealed within the broadened tip of the third segment, making the tarsus appear to have only four segments.

 
Similar
Species

 


Larval Food

Leaves of the same plants that the adults feed on

 
Adult Food

Leaves of various plants in the aster (Asteraceae) family, including:

Canada goldenrod (Solidago canadensis)
common blue wood aster (Symphyotrichum cordifolium)
early goldenrod (Solidago juncea)
New England aster (Symphyotrichum novae-angliae)
purple-stem aster (Symphyotrichum puniceum var. puniceum)
western ragweed (Ambrosia psilostachya)
white doll’s daisy (Boltonia asteroides)
white panicled aster (Symphyotrichum lanceolatum)

 
Life Cycle

 

 
Behavior

The larvae are leaf miners. They feed between the upper and lower leaf surfaces.


Distribution Distribution Map  

Sources: 24, 29, 30.


Comments

No Common Name
This species has no common name. The common name of the former subfamily Hispinae (now moved to the subfamily Cassidinae with the tortoise beetles) is hispine leaf beetles, and is applied here for the sake of convenience.


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:

Cassidinae (tortoise beetles)

 

Tribe:

Chalepini

 
Synonyms

 

 
Common
Names

no common name


 

 

 

 

 

Glossary

Elytra

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

 

Frons

The upper part of an insect’s face, roughly corresponding to the forehead.

 

Pronotum

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

 

Tarsus

The last two to five subdivisions of an insect’s leg, attached to the tibia; the foot. Plural: tarsi.

 

 

 

 

 

       

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Alfredo Colon


a small insect

  hispine leaf beetle (Microrhopala xerene)    

       
       
       

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  hispine (Microrhopala xerene)
Bill Keim
 
  hispine (Microrhopala xerene)  

 

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Alfredo Colon
6/6/2018

Location: Woodbury, MN

a small insect

hispine leaf beetle (Microrhopala xerene)


     
     
 

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