speckled renia moth

(Renia adspergillus)

speckled renia moth
Photo by Alfredo Colon
  Hodges #

8386

 
 
Conservation Status
  IUCN Red List

not listed

 
  NatureServe

NNR - Unranked

 
  Minnesota

not listed

 
           
 
Description
 
 

Speckled renia moth is a common, medium-sized, litter moth. It occurs in the eastern United States from Maine to Florida, west to Wisconsin and Texas. It also occurs in southern Canada from Nova Scotia to Ontario. Minnesota is outside of the moth’s known range, but there is a single record in the state. It was recorded on July 26, 1969, in the former Carlos Avery Game Refuge, now part of the Carlos Avery Wildlife Management Area.

Little information can be found about the biology of this moth. The larvae probably feed on dead leaves and other organic debris, like other litter moths. Adults are active in the north from May to September. They are found in both forested and open areas.

Adults are roughly triangular in shape (deltoid). Males have a 1316 (30 mm) wingspan. Females are smaller, with a 1116 (27 mm) wingspan.

The sensory mouthparts (labial palps) are long, blade-like, and hairy. On the male they are curved upward. On the female they are projected forward, curved upward just at the tip.

The forewings are broad. The outer margin is convex and not angled. The ground color is pale gray. The entire surface is flecked with light brown and dark brown scales. The antemedial (AM) and postmedial (PM) lines are dark and strongly toothed. The AM line is strongly curved downward – toward the outer margin. The median band is broad, dark, and diffuse. The subterminal (ST) line is pale, thin, irregular, and usually broken. The PM line is not marked by dark dots. Above the ST line there is a series of thick, dark dots on the veins. The terminal line is represented by a row of dark dots. The round spot in the upper median area (orbicular spot) is small and pale yellowish, and it usually has a dark outline. The kidney-shaped spot (reniform spot) in the lower median area is pale yellowish, and it sometimes has a dark, crescent-shaped mark in the middle.

The hindwings are the same color as the forewings. The PM and ST lines are inconspicuous.

 
     
 

Size

 
 

Male wingspan: 1316 (30 mm)

Female wingspan: 1116 (27 mm)

 
     
 

Similar Species

 
     
     
 
Habitat
 
 

Forested and open areas

 
     
 
Biology
 
 

Season

 
 

One generation per year in the north: May to September

 
     
 

Behavior

 
 

Adults are active at night and will come to lights.

 
     
 

Life Cycle

 
 

 

 
     
 

Larva Food

 
 

Dead leaves and other organic debris

 
     
 

Adult Food

 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

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

 
  12/17/2023      
         
 

Occurrence

 
 

Not known in Minnesota except for one historic record

 
         
 
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

Renia (renia moths)  
       
 

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.

 
       
 

Synonyms

 
 

Crambus adspergillus

Renia larvalis

Renia restrictalis

 
       
 

Common Names

 
 

gray renia

speckled renia

speckled renia 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.

 

 

 

 

 

 
 
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Alfredo Colon

 
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Aug 20, 2023

 

 

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  Alfredo Colon
8/10/2022

Location: Albany, NY

speckled renia moth  
           
 
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Created: 12/17/2023

Last Updated:

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