red admiral

(Vanessa atalanta)

               
Conservation Status

IUCN Red List

not yet assessed

red admiral

NatureServe

N5 - Secure

S4S5B - Apparently Secure to Secure Breeding

Minnesota

not listed

Occurrence

Common, periodically abundant

Flight/Season

Two broods: summer form mid-June to early September; winter form late August to mid-October and mid-April to June.

Habitat

Moist areas including fields, marshes, meadows near woodlands, forest edges and openings, parks, trails, suburban yards, and gardens.

Photo by Tom Baker
Size

1¾ to 3 wingspan

 

Identification

This is a easily recognized, migratory, medium-sized, brushfooted butterfly. It has a wingspan of 1¾ to 3. Females are slightly larger than males. There are two distinct forms, the larger and brighter summer form and the smaller and duller winter form.

The outer edge of the forewing is slightly scalloped and the tip (apex) is squared off. On the upper side of the forewing there is a a broad reddish-orange band that extends from the median area at the leading (costal) margin to the submarginal area at the inner margin. The area inside the band (discal area) is dark brown. The area outside of the band (apex) is black with a large, subapical white spot and a curved row of 5 smaller apical spots. On the summer form the band is interrupted, on the winter form it is not.

The hindwing is rounded. The upper side of the hindwing is dark brown with a broad, reddish-orange marginal band. Within the orange band there is a small blue spot near the anal angle and a row of 4 small black dots.

The underside of the forewing is dark brown in the discal area, unevenly blue and black in the median area, and light brown at the apex. There is a pinkish-orange band mirroring the band on the upperside. The white markings on the upperside are mirrored on the underside with 1 large and 3 small white spots and 2 black-rimmed brown spots.

The underside of the hindwing is finely mottled and banded with light brown, dark brown, and black.

The eyes are brown and hairy. The legs are hairy.

The caterpillar is variable in color and up to 1½ long. Though fierce looking, they are harmless to the touch. They are usually finely spotted. The spots are the expanded base of the hairs (seta). The thorax and abdomen are often pale green and black with white spots, sometimes yellow with black spots, black with white spots, black with yellow spots, or light green with white spots. On the thorax and each abdominal segment there is a long, thick, stiff, branched spine (scolus) in the middorsal, subdorsal, supraspiracular, spiracular, and subspiracular regions. On light-colored caterpillars the expanded base of the scoli are often reddish-orange. There are often cream-colored spots between and just below the spiracles on abdominal segments 1 through 7. These spots sometimes are joined into a single broad, jagged stripe. The head has is black with short, pale seta and unbranched spines but no scoli. The base of the leg-like structure (proleg) on each side of the middle abdominal segments is often pale orange.

Mature caterpillars are found from June onward.

 
Similar
Species

 


Larval Hosts

Stinging nettle (Urtica dioica ssp. gracilis), small-spike false nettle (Boehmeria cylindrica), Canadian woodnettle (Laportea canadensis), common hop (Humulus lupulus), and Japanese hop (Humulus japonicus).

 
Adult Food

Prefers sap flows on trees, fermenting fruit, and bird droppings. Also nectars at flowers.

 
Life Cycle

The male will perch in a sunlit spot in the afternoon and wait for a female to fly by. After mating, the female will lay eggs singly or stacked in chains or up to 8 or more on the upperside of host plant leaves. The larva molts four times before pupating. The winter form adult migrates south in the fall, overwinters in a warmer area, and returns north in the spring. Some red admirals overwinter in south Texas.

 
Behavior

Early stage caterpillars create a communal nest by tying up with silk the leaves at the tip of a plant shoot. Later stage caterpillars create solitary shelters by folding under the sides of the leaf and securing it with silk.

Adults are strongly territorial. They have an erratic rapid flight.

 
Migration

Red admiral (Vanessa atalanta) migration is well documented in Europe but less so on this side of the Atlantic. It is known that some red admirals in parts of their North American range migrate south in the fall, and some stay behind. It is not known how many non-migratory individuals in the northern parts of their range successfully overwinter. It is thought that the migration is one way, that the individuals that migrate south in the fall are not the same individuals that move north in the spring. The distance of the southward migration is not known, whether it is all of the way or only part of the way to the southern limits of their range.


Distribution Distribution Map   Sources: 7, 20, 21, 29, 71.

Comments

Population Explosions
This species experiences periodic population explosions. In 2012 it was very common and abundant throughout Minnesota.


Taxonomy

Order:

Lepidoptera (butterflies and moths)

 

Suborder:

Glossata

 

Infraorder:

Neolepidoptera

 

Parvorder:

Heteroneura

 

No Rank:

Ditrysia

 

No Rank:

Obtectomera

 

Superfamily:

Papilionoidea (butterflies [excluding skippers])

 

Family:

Nymphalidae (brush-foots)

 

Subfamily:

Nymphalinae (true brushfoots)

 

Tribe:

Nymphalini

 

Genus:

Vanessa

 

Subgenus:

Vanessa

 
Synonyms

 

 
Common
Names

red admiral


 

 

 

 

 

 

 

 

Glossary

proleg

A fleshy structure on the abdomen of some insect larvae that functions as a leg, but lacks the five segments of a true insect leg.

 

pupa

The life stage of some insects undergoing transformation. In caterpillars, the chrysalis.

 

scolus

A spiny, branched projection from a larval body wall, the branches terminating with a single stiff, hair-like or bristle-like tip.

 

seta

A usually rigid bristle- or hair-like structure on butterflies and moths used to sense touch. Plural: setae.

 

spiracle

A small opening on the surface of an insect through which the insect breathes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

       

Visitor Photos

   
Share your photo of this insect.

Tom Baker


  red admiral   red admiral
       
  red admiral   red admiral

       
       
       

MinnesotaSeasons.com Photos

   
  red admiral   red admiral
       
  red admiral    
       
       

 

Camera

     

Slideshows

   
  Vanessa atalanta
Susanne Wiik
 
  Vanessa atalanta  
 
About

Admiralsommerfugl, Red Admiral

 
     
  Red Admiral Butterfly
Andree Reno Sanborn
 
  Red Admiral Butterfly  
 
About

Red Admiral (Vanessa atalanta)

 
     
  Red Admiral (Vanessa atalanta)
Bill Keim
 
  Red Admiral (Vanessa atalanta)  
     
  Vanessa atalanta (Red Admiral)
Allen Chartier
 
  Vanessa atalanta (Red Admiral)  
     
  Red Admiral butterfly (Vanessa atalanta)
Andy Reago & Chrissy McClarren
 
  Red Admiral butterfly (Vanessa atalanta)  

 

slideshow

     

Visitor Videos

   
Share your video of this insect.

     
     

Other Videos

 
  Vulcana (Vanessa atalanta)
pezmariposa
 
   
 
About

Uploaded on Dec 15, 2007

Despues de pararse toda la primavera y el varano eludiéndome, esta bonita mariposa dejó que la retratara en otoño sobre los crisantemos a los que acudía todos los días.

 
     
  Chrysalis of Vanessa atalanta - Red Admiral
Adam Grochowalski
 
   
 
About

Published on Dec 29, 2013

Gąsienica Rusałki admirała tworzy poczwarkę

The Caterpillar forms a chrysalis of Red Admiral -- Vanessa atalanta

Die Raupe bildet eine Puppe Schmetterling Admiral -- Vanessa atalanta

Housenka vytvoří kuklu Babôčka admiralska

 
     
  Butterfly - Atalanta - Vanessa atalanta - Dudinghausen - Sauerland - Germany - 2013 - Full HD 1080p.
Jan van den Hardenberg
 
   
 
About

Published on Aug 15, 2013

Atalanta (Vanessa atalanta) eet van de kersen op de weg in Dudinghausen in het Sauerland in Duitsland. (06 augustus 2013). (Sony Cyber-shot DSC-HX300).

For all my photo's & video's: http://janvandenhardenberg.weebly.com.

 
     
  RED Admiral / Atalanta ( Vanessa Atalanta )
redjered
 
   
 
About

Published on Jul 7, 2013

Red Admirals can often be found on "horseshit" and Thistleflowers

(Vanessa Atalanta )

Atalanta wordt vaak op paarden"stront" en distelbloemen gevonden.

 
     
  Vanessa atalanta 'Red Admiral' Butterfly
MrBrownThumb
 
   
 
About

Uploaded on Jun 30, 2007

If you're gardening and hoping to attract wildlife to your garden add as many Echinacea plants as you can cram in your gardening space. They attract beneficial insects like butterflies and when the seeds form they provide a good food source for native birds.

Here, a number of Red Admiral butterflies are feeding on the pollen of a few of my Echinacea plants.

 
     

 

Camcorder

Last Updated:

About Us | Privacy Policy | Contact Us | © 2017 MinnesotaSeasons.com. All rights reserved.