carrot seed moth

(Sitochroa palealis)

carrot seed moth
Photo by LMG
  Hodges #

4986.1

 
 
Conservation Status
  IUCN Red List

not listed

     
  NatureServe

NNA - Not applicable

SNA - Not applicable

     
  Minnesota

not listed

     
           
 
Description
 
 

Carrot seed moth is medium-sized snout moth. It is native to Europe, Asia, and North Africa. The first sighting in North America was in Illinois ion 2002. It has rapidly spread since its introduction. In 2008 in was collected in Illinois, Indiana, Michigan, and Wisconsin. It is now well established in North America from Maine to North Carolina west to North Dakota and Missouri, and in Quebec and Ontario Canada. It is still uncommon in Minnesota. Adults are found from June to July in grasslands, gardens, and anywhere else its host species are found. The larva feeds on seed heads of umbellifers, especially Queen Anne’s lace, but also fennel, American cow parsnip, and wild parsnip. It spins a web pulling together flowers within an umbellet. It feeds within the web and later hibernates within it.

Adults are have a slender body, are 716 to ½ (11 to 13 mm) long, and have a wingspan of 1 to 1 (26 to 34 mm). The abdomen is longer than the hindwings, but this is not visible at rest, when both are covered by the forewings. The wings are broad and are held folded flat when at rest. They are usually silky white, sometimes pale yellow or straw-colored, rarely yellow. Regardless of the base color they usually have a faint greenish tint. On the forewing the veins are slightly darkened in the submarginal area and there is usually a patch of dark scales in the median area at the end of the forewing cell.

 
     
 

Size

 
 

Total Length: 716 to ½ (11 to 13 mm)

Wingspan: 1 to 1 (26 to 34 mm)

 
     
 

Similar Species

 
     
     
 
Habitat
 
 

Grasslands

 
     
 
Biology
 
 

Season

 
 

One generation per year: June and July

 
     
 

Behavior

 
 

The larva spins a web pulling together flowers within an umbellet. It feeds within the web and later hibernates within it.

Adults fly at dusk and at will come to light at night.

 
     
 

Life Cycle

 
 

 

 
     
 

Larva Hosts

 
 

Seed heads of umbellifers, especially Queen Anne’s lace, but also fennel, American cow parsnip, and wild parsnip.

 
     
 

Adult Food

 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

21, 24, 29, 30, 75, 82.

 
  8/25/2020      
         
 

Occurrence

 
 

Uncommon

 
         
 
Taxonomy
 
 

Order

Lepidoptera (butterflies and moths)  
 

Suborder

Glossata  
 

Infraorder

Neolepidoptera  
  Parvorder Heteroneura  
  No Rank Ditrysia  
  No Rank Obtectomera  
 

Superfamily

Pyraloidea (pyralid and crambid snout moths)  
 

Family

Crambidae (crambid snout moths)  
 

Subfamily

Pyraustinae  
 

Genus

Sitochroa  
       
 

Synonyms

 
 

Pyralis palealis

 
       
 

Common Names

 
 

carrot seed moth

 
       

 

 

 

 

 

 

Glossary

Umbellet

A secondary umbel in a compound umbel.

 

 

 

 

 

 
 
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LMG

 
 

In my fennel flowers! They seem to create little hide-a-ways to either molt or hide from predators. Possibly both.

In my research, they were discovered along the Great Lakes shipping lanes. It’s non native and was first recorded in Wisconsin on Queen Annes Lace (wild carrot-invasive). Some think it may help curb the spread by keeping the seed heads from dispersing! Can’t decide if I want to keep or rid myself if them. I don't use the fennel for anything but the bulbs and occasion munching of the fronds (myself and Black Swallowtail caterpillars) BUT I don't want them messing with my dill seeds in the future!

  carrot seed moth  
           
 
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  carrot seed moth 01
Aug 25, 2020
 
   
 
About

carrot seed moth (Sitochroa palealis)
Scott County Minnesota
Photo by LMG
8/9/2020

In my fennel flowers! They seem to create little hide-a-ways to either molt or hide from predators. Possibly both.

In my research, they were discovered along the Great Lakes shipping lanes. It’s non native and was first recorded in Wisconsin on Queen Annes Lace (wild carrot-invasive). Some think it may help curb the spread by keeping the seed heads from dispersing! Can’t decide if I want to keep or rid myself if them. I don't use the fennel for anything but the bulbs and occasion munching of the fronds(myself and Black Swallowtail caterpillars) BUT I don't want them messing with my dill seeds in the future!

   
       
       
 
Other Videos
 
  [見島のいきものたち 195] ウラグロシロノメイガ Sitochroa palealis
kiokuima
 
   
 
About

Sep 11, 2016

2016年9月8日午後、山口県萩市見島の農村部で撮影しました。撮影中はシンプルな白い蛾かと思ってましたが、こうして見ると、うっすらと紋様が入っています。この紋様から、本種であると判断しました。

Google translation: Taken in the rural area of Mishima, Hagi City, Yamaguchi Prefecture, on the afternoon of September 8, 2016. I thought it was a simple white moth during the shooting, but when I look at it this way, it has a faint pattern. From this pattern, it was judged that this species.

 
       

 

Camcorder

 
 
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  LMG
8/9/2020

Location: Scott County

In my fennel flowers! They seem to create little hide-a-ways to either molt or hide from predators. Possibly both.

In my research, they were discovered along the Great Lakes shipping lanes. It’s non native and was first recorded in Wisconsin on Queen Annes Lace (wild carrot-invasive). Some think it may help curb the spread by keeping the seed heads from dispersing! Can’t decide if I want to keep or rid myself if them. I don't use the fennel for anything but the bulbs and occasion munching of the fronds(myself and Black Swallowtail caterpillars) BUT I don't want them messing with my dill seeds in the future!

carrot seed moth  
           
 
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Created: 8/25/2020

Last Updated:

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