Hudsonian whiteface

(Leucorrhinia hudsonica)

Conservation Status
Hudsonian whiteface
Photo by Luciearl
  IUCN Red List

LC - Least Concern

     
  NatureServe

N5 - Secure

SNR - Unranked

     
  Minnesota

not listed

     
           
           
           
 
Description
 
 

Hudsonian whiteface is small skimmer, 1 to 1¼ (28 to 32 mm) long. It occurs throughout Canada and in the northern United States from Maine to West Virginia and west to Minnesota, and from Washington to California and east to Colorado. In Minnesota it is most common in the Arrowhead and north-central regions, less common south to the metro area, and absent from the remainder of the state. It is found from early May to mid-August in bogs, fens, sloughs, ponds with emergent vegetation, and lakes with sandy bottoms.

On the male the thorax is black, is densely hairy, and has red markings. The abdomen is black. On the top of abdominal segments 1 through 6 (S1 to S6) there is a wide red spot that is as long or nearly as long as the segment and is often pointed toward the rear. The spot on S7 is smaller and triangular. Occasionally there is a small spot on S8. S9 and S10 are completely black with no spots. The eyes are brown. The face is white but this can be difficult to see at some angles. The legs are black. The wings are mostly clear except for a small dark patch at the base of the hindwings and the stigma at the leading edge of each wing. The veins within the dark patch are light colored on all individuals except vary mature males.

Females and juveniles are similar but their markings are yellow, not red.

 
     
 

Size

 
 

Total Length: 1 to 1¼ (28 to 32 mm)

 
     
 

Similar Species

 
  Dot-tailed whiteface (Leucorrhinia intacta) is slightly larger. Juveniles have a squarish, not triangular, spot on segment 7 of the abdomen. The dark patch on the hindwing never has pale veins.  
     
 
Habitat
 
 

Bogs, fens, sloughs, ponds with emergent vegetation, and lakes with sandy bottoms.

 
     
 
Biology
 
 

Season

 
 

Early May to mid-August

 
     
 

Behavior

 
 

Males perch of sedge or grass stems during the day.

 
     
 

Life Cycle

 
 

The female hovers just above the surface of shallow water near aquatic plants that touch the water surface. She quickly taps the tip of her abdomen onto the water surface 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.

 
     
 

Nymph Food

 
 

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

 
     
 

Adult Food

 
 

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

 
     
 
Distribution
 
 

Distribution Map

 

Sources

18, 24, 27, 29, 30, 82.

 
  6/11/2020      
         
 

Occurrence

 
 

Common

 
         
 
Taxonomy
 
 

Order

Odonata (dragonflies and damselflies)  
 

Suborder

Epiprocta  
  Infraorder Anisoptera (dragonflies)  
 

Superfamily

Cavilabiata  
 

Family

Libellulidae (skimmers)  
 

Genus

Leucorrhinia  
       
 

Synonyms

 
 

Leucorrhina hagen

 
       
 

Common Names

 
 

Hudsonian 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 other insects, a thickened, dark, or opaque cell on the leading edge of the wing.

 

 

 

 

 

 
 
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Luciearl

 
  The dragonflies arrived yesterday. They'll be a big help with the recent black fly problem.   Hudsonian whiteface  
           
        Hudsonian whiteface  
           
 
MinnesotaSeasons.com Photos
 
 

 

 
           
           

 

Camera

     
 
Slideshows
 
Hudsonian Whiteface
Cory Gregory
  Hudsonian Whiteface  
     

 

slideshow

       
 
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Other Videos
 
  Leucorrhinia hudsonica
DocBebitte
 
   
 
About

Jul 6, 2017

Leucorrhine hudsonienne mâle/Male Hudsonian Whiteface.

 
       

 

Camcorder

 
 
Visitor Sightings
 
           
 

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  Luciearl
5/8/2020

Location: Cass County

The dragonflies arrived yesterday. They'll be a big help with the recent black fly problem.

Hudsonian whiteface  
           
 
MinnesotaSeasons.com Sightings
 
 

 

 

 

 

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Created: 6/12/2020

Last Updated:

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