glossy black idia moth

(Idia lubricalis)

glossy black idia moth
Photo by Babette Kis
  Hodges #

8334

 
 
Conservation Status
  IUCN Red List

not listed

 
  NatureServe

NNR - Unranked

SNR - Unranked

 
  Minnesota

not listed

 
           
           
 
Description
 
 

Glossy black idia moth is a common, small to medium-sized, litter moth. It occurs throughout the United States, but it is rare in the northwest quarter of the country. It also occurs across southern Canada. It is common in Minnesota.

Glossy black idia larvae feed on lichens, fungi, rotting wood, and other decaying organic matter. When feeding on decaying organic matter, they are probably getting most of their nourishment from fungi. Adults are found from late June to September in deciduous woodlands and shrubby areas. They are active at night and will come to lights. They also come to sugar baits painted on tree trunks. During the day they congregate in large numbers in hollowed out trees and sometimes in basements.

Adults are 1116 to 1316 (18 to 21 mm) in length and have a 1 to 1 (25 to 35 mm) wingspan. Some specimens are much smaller. Moths in the west are larger and paler, and they have more diffuse black markings. These size and color differences, and DNA barcoding, suggest that Idia lubricalis may be a complex of three or more species.

The sensory mouthparts (labial palps) are long and upwardly curved, sickle shaped, reaching to the top of the head. The third segment is very flat, bladelike. On the male, the antennae are heavily covered with hair-like projections (cilia) and are also heavily bristled. The bristles are longer than the antennal segment to which they are attached. On the female, the antennae are lightly bristled.

The forewings are broadly rounded on the outer margin. They are mostly dark blackish brown and glossy, with pale clay-colored markings. This is the feature that gives the moth its common name. They are crossed by three pale, sharply toothed lines. The antemedial (AM) line is shadowed below with black. The postmedial (PM) and subterminal (ST) lines are shadowed above with black. The area beyond the ST line is usually paler. The round spot in the upper median area (orbicular spot) is reduced to a small pale dot and is sometimes missing. The kidney-shaped spot (reniform spot) in the lower median area is pale and usually has a black, crescent-shaped mark in the middle. The black mark often nearly fills the reniform spot, leaving only a slender pale crescent on its upper edge.

The hindwings are much paler and are crossed with the same lines, but the lines are broader and more diffuse.

 
     
 

Size

 
 

Total length: 1116 to 1316 (18 to 21 mm)

Wingspan: 1 to 1 (25 to 35 mm)

 
     
 

Similar Species

 
     
     
 
Habitat
 
 

Deciduous woodlands and shrubby areas

 
     
 
Biology
 
 

Season

 
 

One generation per year: late June to September

 
     
 

Behavior

 
 

Adults are active at night and will come to lights. During the

 
     
 

Life Cycle

 
 

Caterpillars overwinter

 
     
 

Larva Food

 
 

Lichens, fungi, rotting wood, and other decaying organic matter

 
     
 

Adult Food

 
 

Flower nectar

 
     
 
Distribution
 
 

Distribution Map

 

Sources

4, 21, 29, 30, 71, 75, 82, 83.

 
  12/10/2023      
         
 

Occurrence

 
 

Common

 
         
 
Taxonomy
 
 

Order

Lepidoptera (butterflies and moths)  
 

Superfamily

Noctuoidea (owlet moths and allies)  
 

Family

Erebidae (underwing, tiger, tussock, and allied moths)  
 

Subfamily

Herminiinae (litter moths)  
 

Genus

Idia  
       
 

In 2011 the family Arctiidae (tiger moths and lichen moths) was transferred to the family Erebidae mostly intact but demoted to a subfamily. The former subfamilies are now tribes, the former tribes now subtribes.

 
       
 

Subordinate Taxa

 
 

Idia occidentalis was formerly treated as a subspecies of Idia lubricalis.

 
       
 

Synonyms

 
 

Bleptina surrectalis

Camptylochila bistrigalis

Epizeuxis cobeta

Epizeuxis intensalis

Epizeuxis lubricalis

Helia phaealis

Idia intensinalis

 
       
 

Common Names

 
 

glossy black idia

glossy black idia moth

 

 

 

 

 

 

 

 

Glossary

Antemedial (AM) line

A thin line separating the basal area and the median area of the forewing of Lepidoptera.

 

Orbicular spot

A circular spot or outline in the upper median area near the antemedial line on the forewing of many moths.

 

Palp

Short for pedipalp. A segmented, finger-like process of an arthropod; one is attached to each maxilla and two are attached to the labium. They function as sense organs in spiders and insects, and as weapons in scorpions. Plural: palpi or palps.

 

Postmedial (PM) line

A thin line separating the median area and the postmedial area of the forewing of Lepidoptera.

 

Reniform spot

A kidney-shaped spot or outline in the lower median area near the PM line on the forewing of many moths.

 

 

 

 

 

 
 
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.
 
 

Babette Kis

 
 

Idia lubricalis glossy black idia moth

Idia lubricalis, glossy black idia moth, photographed on stones at the house adjacent to Barnes Prairie, Racine Co., WI on June 25, 2022. These litter moths seem to be active during the early evening.

  glossy black idia moth  
           
 
MinnesotaSeasons.com Photos
 
 

 

 
           

 

Camera

     
 
Slideshows
 
Glossy Black Idia - Hodges#8334 (Idia lubricalis)
Andree Reno Sanborn
  Glossy Black Idia - Hodges#8334 (Idia lubricalis)  

 

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
 
  Glossy Black India Moth
Lori Jackson
 
   
 
About

Jul 20, 2021

idea lubricalisūü§ď

 

 

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.
 
  Babette Kis
6/25/2022

Location: Barnes Prairie, Racine Co., WI

Idia lubricalis, glossy black idia moth, photographed on stones at the house adjacent to Barnes Prairie, Racine Co., WI on June 25, 2022. These litter moths seem to be active during the early evening.

glossy black idia moth  
           
 
MinnesotaSeasons.com Sightings
 
 

 

 

 

 

Binoculars


Created: 12/10/2023

Last Updated:

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