winter firefly

(Ellychnia corrusca)

Conservation Status
IUCN Red List

not listed

NatureServe

NNR - Unranked

Minnesota

not listed

 
winter firefly
Photo by Babette Kis
 
Description

Winter firefly is a medium-sized, to 9 16 long, diurnal firefly.

The thoracic shield (pronotum) is semi-elliptical. It does not have translucent windows. It is pale with a broad black stripe in the middle and a narrow black stripe on the left and right margins. The pale area between the stripes is usually mostly pale rose colored. From above the pronotum appears black with pale rose “parentheses” markings.

The forewings (elytra) are black without pale borders or stripes. They have minute, brownish-gray hairs that give them a dusty appearance.

The head is concealed beneath the pronotum. The antennae are thread-like and black. They are not flattened. The third antennal segment is shorter than the first.

The legs are black. The end segment of each leg (tarsus) has 5 sections.

There are no bioluminescent organs.

 

Size

Total length: to 9 16

 

Similar Species

Other Ellychnia species are smaller, 316 to 5 16long, and do not have pale hairs on the elytra.

Habitat

Moist, marshy areas

Biology

Season

May to late September

 

Behavior

Adults are active during the day. They do not possess bioluminescent organs and therefore do not light up.

Overwintering adults may become active on warm, sunny, winter days, moving a short distance from their wintering spot.

 

Life Cycle

Adults overwinter in a crevice of tree bark. They emerge and become active in March. Breeding occurs in April and May. Eggs hatch in about 16 days. Adults of the previous season die in late spring. The larvae feed on rotting wood and pupate in the fall. Adults of the new season emerge before snowfall.

 

Larva Food

Rotting wood

 

Adult Food

Maple tree sap and flower nectar in the spring, and possibly goldenrod and aster flower nectar in the autumn.

Distribution

Distribution Map

 

Sources

24, 27, 29, 30, 82, 83.

4/23/2024    
     

Occurrence

Common

Taxonomy

Order

Coleoptera (beetles)

Suborder

Polyphaga (water, rove, scarab, long-horned, leaf, and snout beetles)

Infraorder

Elateriformia

Superfamily

Elateroidea (click, firefy, and soldier beetles)

Family

Lampyridae (fireflies)

Subfamily

Lampyrinae (typical fireflies)

Tribe

Photinini

Genus

Ellychnia (diurnal fireflies)

   

Species complex
Research in 2003 suggests that Ellychnia corrusca may be a species complex, meaning that collected specimens of this species could be reclassified as several new species.

Genus
ITIS, Catalog of Life, and GBIF classify this firefly as Photinus corrusca. (ITIS is a partner with the COL. ITIS contributes its data on scientific names and classifications [taxonomy] to the COL.) All other sources checked by MinnesotaSeasons – BugGuide.net, IUCN Redlist of Threatened Species, NCBI, BOLD, IRMNG, NatureServe, and iNaturalist – classify it as Ellychnia corrusca. ITIS notes that Ellychnia corrusca is “invalid - subsequent name/combination.” GBIF has a graph indicating that 93.5% of their sources use the name Ellychnia corrusca, and only 6.5% use the name Photinus corrusca.

   

Subordinate Taxa

 

   

Synonyms

Photinus corrusca

   

Common Names

winter firefly

winter firefly beetle

 

 

 

 

 

 

 

 

Glossary

Elytra

The hardened or leathery forewings of beetles used to protect the fragile hindwings, which are used for flying. Singular: elytron.

 

Pronotum

The exoskeletal plate on the upper side of the first segment of the thorax of an insect.

 

Tarsus

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

 

 

 

 

 

Visitor Photos
 

Share your photo of this insect.

 

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach one or more photos and, if you like, a caption.

Alfredo Colon

winter firefly   winter firefly
     
winter firefly   winter firefly

Babette Kis

Ellychnia corrusca Winter Firefly

Ellychnia corrusca, winter firefly, on rigid goldenrod, Barnes Prairie, Racine Co., WI. Photo was taken on Sept. 13, 2020.

  winter firefly

Bill Reynolds

Found these fireflies hanging out on one of my bee hives.

  winter firefly
     
winter firefly   winter firefly
MinnesotaSeasons.com Photos
 
   

 

   

 

 

Camera

Slideshows

Winter Firefly (Ellychnia corrusca)
Andree Reno Sanborn

Winter Firefly (Ellychnia corrusca)

 

slideshow

Visitor Videos
 

Share your video of this insect.

 

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach a video, a YouTube link, or a cloud storage link.

 

 

 
 
Other Videos

Ellychnia Fireflies (Lampyridae: Ellychnia corrusca) Mating
Carl Barrentine

About

Uploaded on Jun 17, 2011

This is one of our most common diurnally-active fireflies (i.e., fireflies which do not possess abdominal light organs in the adult stage of their life cycle). Photographed at Fisher, Minnesota (17 June 2011).

Diurnal Firefly (Lampyridae: Ellychnia corrusca) Mating
Carl Barrentine

About

Uploaded on May 19, 2010

Photographed at Rydell NWR, Minnesota (18 May 2010). Go here to read more about this species: http://bugguide.net/node/view/42641

Diurnal Firefly (Lampyridae: Ellychnia corrusca) Taking Flight
Carl Barrentine

About

Uploaded on May 27, 2010

Photographed at the Rydell NWR, Minnesota (27 May 2010). Go here to read more about this species: http://bugguide.net/node/view/42641

Diurnal Firefly (Lampyridae: Ellychnia corrusca) on Wall
Carl Barrentine

About

Uploaded on May 24, 2011

Photographed at Turtle River State Park, North Dakota (24 May 2011). Thank you to 'v belov' (@Bugguide.net) for confirming the identity ofn this specimen!

Diurnal Firefly (Lampyridae: Ellychnia corrusca) on Oak Bark
Carl Barrentine

About

Uploaded on Apr 23, 2011

Photographed at the Turtle River State Park, North Dakota (23 April 2011).

 

Camcorder

Visitor Sightings
 

Report a sighting of this insect.

 

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Be sure to include a location.

Alfredo Colon
4/7/2024

Location: Albany, NY

winter firefly
Alfredo Colon
8/18/2022

Location: Albany, NY

winter firefly
Babette Kis
9/13/2020

Location: Barnes Prairie, Racine Co., WI

Ellychnia corrusca, winter firefly, on rigid goldenrod, Barnes Prairie, Racine Co., WI. Photo was taken on Sept. 13, 2020.

winter firefly
Bill Reynolds
9/20/2014

Location: Pennington Co MN

Found these fireflies hanging out on one of my bee hives.

winter firefly
MinnesotaSeasons.com Sightings

 

 

 

Binoculars

 

Created: 9/24/2014

Last Updated:

© MinnesotaSeasons.com. All rights reserved.

About Us

Privacy Policy

Contact Us