dot-tailed whiteface

(Leucorrhinia intacta)

               
Conservation Status

IUCN Red List

not yet assessed

dot-tailed whiteface

NatureServe

N5 - Secure

SNR - Unranked

Minnesota

not listed

Occurrence

Common

Flight/Season

Mid-May to late September

Habitat

Marshy ponds, lakes, slow streams, and bogs.

Size

Total Length: 15 16 to 17 16

 

Identification

This is a small skimmer, 15 16 to 17 16 long.

The male has a white face, black thorax, black abdomen, and clear wings. There is a single, squarish, yellow spot on the top (dorsal surface) of segment 7 of the abdomen. The thorax is black. The face is white. The wings are clear except for a small dark patch at the base of the hindwings and the stigma at the leading edge of each wing.

The female and the juvenile are more colorful. There is a single dorsal yellow spot on segments 2 through 6. The spot extends nearly the length of the segment. There is also a squarish, yellow, dorsal spot on segment 7, and yellow stripes on the side (lateral surface) of segments 4 and 5. As the female matures the dorsal spots on segments 2 through 6 fade. The lateral stripes often fade as well, though they last longer than the dorsal spots. The dorsal spot on segment 7 does not fade. With the faded spots an older female looks much like a male, but it rarely becomes as dark as the male. About 18% of the females have a conspicuous amber patch on the basal 20% of the wing (where the wing attaches to the thorax).

 
Similar
Species

Hudsonian whiteface (Leucorrhinia hudsonica) is slightly smaller. Juveniles have a triangular, not squarish, spot on segment 7 of the abdomen.


Naiad Food

Mayfly naiads, mosquito larvae, other aquatic fly larvae, freshwater shrimp, small fish, and tadpoles.

 
Adult Food

Mosquitoes, flies, butterflies, moths, mayflies, and flying ants or termites, and other soft-bodied flying insects.

 
Life Cycle

The female hovers just above the surface of shallow water near aquatic plants that touch the water surface. She dips the tip of her abdomen into the water to deposit the eggs. The male guards the female as she deposits her eggs.

The naiads live in submerged vegetation. They emerge as adults at night.

 
Behavior

Adults perch horizontally on the ground and on floating vegetation, especially water lilies. They hunt from shoreline vegetation.


Distribution Distribution Map   Sources: 7, 16, 18, 24.

Comments

 


Taxonomy

Order:

Odonata (dragonflies and damselflies)

 

Suborder:

Epiprocta

 

Infraorder:

Anisoptera (dragonflies)

 

Superfamily:

Cavilabiata

 

Family:

Libellulidae (skimmers)

 
Synonyms

 

 
Common
Names

dot-tailed whiteface


 

 

 

 

 

Glossary

stigma

In plants, the portion of the female part of the flower that is receptive to pollen. In Lepidoptera, an area of specialized scent scales on the forewing of some skippers, hairstreaks, and moths. In Odonata, a thickened, dark or opaque cell near the tip of the wing on the leading edge.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

       

Visitor Photos

   
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Crystal Boyd


  dot-tailed whiteface    

       
       

MinnesotaSeasons.com Photos

   

Male

  dot-tailed whiteface   dot-tailed whiteface
       
  dot-tailed whiteface   dot-tailed whiteface
       

Female

  dot-tailed whiteface   dot-tailed whiteface
       
  dot-tailed whiteface   dot-tailed whiteface
       

Darkened Female

  dot-tailed whiteface    
       

Juvenile

  dot-tailed whiteface    
       
       

 

Camera

     

Slideshows

   
  Dot Tailed Whiteface
DianesDigitals
 
  Dot Tailed Whiteface  
 
About

Copyright DianesDigitals

 
     
  Leucorrhinia intacta (Dot-tailed Whiteface)
Allen Chartier
 
  Leucorrhinia intacta (Dot-tailed Whiteface)  

 

slideshow

     

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Other Videos

 
  Dot-tailed Whiteface (Libellulidae: Leucorrhinia intacta) Mating
Carl Barrentine
 
   
 
About

Uploaded on Jul 7, 2009

Photographed at Grand Forks, North Dakota (07 July 2009). Go here to learn more about this species: http://minnesotaseasons.com/Insects/dot-tailed_whiteface.html

 
     
  Dot-tailed Whiteface (Libellulidae: Leucorrhinia intacta) Male
Carl Barrentine
 
   
 
About

Uploaded on Jul 4, 2009

Photographed at Grand Forks, North Dakota (04 July 2009). Go here to learn more about this species: http://minnesotaseasons.com/Insects/dot-tailed_whiteface.html

 
     
  Dot-tailed Whiteface (Libellulidae: Leucorrhinia intacta) Female
Carl Barrentine
 
   
 
About

Uploaded on Jun 17, 2011

Photographed at Fisher, Minnesota (17 June 2011). Thank you to DeeDee (@Bugguide.net) for confirming the identity of this specimen!

 
     
  Dot-tailed Whiteface Dragonfly (Libellulidae: Leucorrhinia intacta) Close-up
Carl Barrentine
 
   
 
About

Published on May 28, 2012

Photographed at Fisher, Minnesota (28 May 2012).

 
     

 

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