geometer moth

(Xanthotype spp.)

               
Overview

Xanthotype is a genus of medium-sized geometer moths. There are five species of Xanthotype, all occurring only in North America. Two species occur in Minnesota. They are found in mixed and deciduous forests. Larvae feed on many trees, shrubs, and forbs, including poison ivy. Adults are active during the day but will also come to lights at night.

geometer moth (Xanthotype sp.)
 

 

Photo by Tom Baker
Identification

Adults are pale yellow or bright yellow with numerous pinkish- or purplish-brown spots. The background color and density of spotting is variable. Some individuals have just a few large dark spots on a pale yellow background, others are heavily spotted on a dark yellow background. Unfortunately, this does not help to identify the species.

A study (Rindge, 1978) of 1,886 specimens concluded that there is no reliable way to distinguish species within this genus except by genital dissection, a procedure not ordinarily performed in the field. “The adults of all species in this genus are, for practical purposes, externally indistinguishable from one another, as they are almost identical in color, maculation, and size.”

 
Distribution Distribution Map  

Sources: 21, 24, 27, 29, 30, 82.

 
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Taxonomy

Order:

Lepidoptera (butterflies and moths)

 

Suborder:

Glossata

 

Infraorder:

Neolepidoptera

 

Parvorder:

Heteroneura

 

No Rank:

Ditrysia

 

No Rank:

Obtectomera

 

Superfamily:

Geometroidea (geometrid and swallowtail moths)

 

Family:

Geometridae (geometer moths)

 

Subfamily:

Ennominae

 

Tribe:

Angeronini

 

Genus:

Xanthotype

 
Subordinate Taxa

crocus geometer moth (Xanthotype sospeta)

false crocus geometer moth (Xanthotype urticaria)

geometer moth (Xanthotype attenuaria)

rufus geometer moth (Xanthotype rufaria)

 
Synonyms

 

 
Common
Names

crocus geometer moth

false crocus geometer moth

 

 

 

 

 

 

 

 

 

 

 

 

       
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Kristi Wicklund
       
  geometer moth (Xanthotype sp.)    
       
Tom Baker
       
  geometer moth (Xanthotype sp.)    
       
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Other Videos
 
  Part 10: Common Typical Geometer Moths (Family Geometridae)
Carl Barrentine
 
   
 
About

Published on Jan 23, 2013

A visual introduction to thirty-six species of Typical Geometer Moths (Family Geometridae, Subfamily Ennominae). These include the following thirty-one genera: Alsophila, Speranza, Macaria, Digrammia, Iridopsis, Anavitrinella, Protoboarmia, Melanolophia, Biston, Hypagyrtis, Phigalia, Paleacrita, Erannis, Cabera, Euchlaena, Xanthotype, Pero, Campaea, Ennomos, Metanema, Probole, Plagodis, Caripeta, Nepytia, Sicya, Eusarca, Tetracis, Eugonobapta, Eutrapela, Prochoerodes, and Nematocampa. Specimens shown here were photographed in North Dakota and Minnesota during 2010-12. This short educational film was made in Grand Forks, North Dakota (23 January 2013).

   
       
  Crocus or False Crocus Geometer Moth (Xanthotype) Male on Wall
Carl Barrentine
 
   
 
About

Uploaded on Aug 6, 2011

Photographed at Red Wing, Minnesota (04 August 2011).

   
       

 

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Kristi Wicklund
6/16/2020

Location: south Central Ottertail County Minnesota. Inspiration Peak area.

geometer moth (Xanthotype sp.)


     
     
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