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A Key to the superfamilies of the Lepidoptera
with special reference to North and South Dakota


 

Family Sphingidae, Hawkmoths, Hummingbird moths, or Sphinx moths, have the abdomen extending beyond the wings for at least 1/2 of its' length, hindwings smaller than the forewings, frenulum present, antennae rarely bipectinate. There are 1,050 species worldwide and about 130 in North America.

 

 

At right: fasciculate antenna of Manduca quinquemaculata (Haworth) (top), clavate antennae of Hyles lineata (Fabricius) (middle) and bipectinate antennae of Smerinthus jamaicensis (Drury) (bottom); ventral view of Sphinx gordius Cramer- arrow indicating frenulum; center right Sphecodina abbottii (Swainson) with normal proboscis, far right Paonias myops (J.E. Smith) with atrophied proboscis.

    

   

 

 

                   

From left to right: Agrius cingulatus (Fabricius), Sphinx vashti Strecker, Paonias excaecatus (J. E. Smith),
Hemaris diffinis
(Boisduval) and Hyles lineata (Fabricius).

 

 

Family Bombycidae (including Apatelodidae) Silk moths, have atrophied mouthparts bipectinate antennae, a frenulum, and M1 stalked with Rs on hw. There are 250 species worldwide and five in North America.

From left to right: Apatelodes torrefacta (J.E. Smith) venter showing frenulum and habitus, Bombyx mori (Linnaeus), habitus.

     
 

 

Family Saturniidae, Giant silk moths, have atrophied mouthparts, lack a frenulum, usually possess quadri-pectinate antennae and often, an ocellatus on each wing. There are about 1,300 species worldwide and at least 72 in North America.  
 
 

    

     


Top center: venter of Dryocampa rubricunda (Harris), arrow indicating humeral lobe; top right: quadripectinate antenna of male
Antheraea polyphemus
(Cramer); top left: close-up of same; bottom left, quadripectinate antennae of Coloradia doris Barnes;
center: bipectinate antennae of Hemiluca nevadensis Stretch; lower right: antenna of Dryocampa rubricunda, quadripectinate
on basal 2/3, simple to apex.
 
                        

From left to right: Dryocampa rubricunda (Harris), Automeris io (Fabricius),
Coloradia pandora
(Blake),  Acias luna (Linnaeus), Hyalophora gloveri (Strecker)

   
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Note: Family Senaturidae, of the Geometroidea which lacks a tympanum will key to this couplet.  These moths have hairy eyes and clavate antennae.  See couplet 15b.

 

 

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Last updated: 06/20/07

Dr. Gerald M. Fauske
collection manager, NDSIRC
research specialist, NDSU
216 Hultz Hall
Fargo, ND 58105
E-Mail: Gerald.Fauske@ndsu.nodak.edu

 
Published by the Department of Entomology 


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