LEPIDOPTERA 



633 



Fig. 774.— Wings 

 (After Spuler.) 



of Glyphipteryx thrasonella. 



of the male are ash-colored, with a yellow stripe outlined by a wavy 

 dark line extending along the inner margin. When the wings are 

 closed, the united yellow 

 stripes form a row of 

 three diamond-shaped 

 markings. These sug- 

 gested the common name 

 of the species. In the 

 female the front wings 

 are a nearly uniform gray. 

 The hind wings in both 

 sexes are a dull gray. 



Family 

 GLYPHIPTERYGIDiE 



The ocelli are usually 

 large. The maxillag are 

 strong and clothed with 

 scales. The maxillary 

 palpi are vestigial or 

 wanting. The labial pal- 

 pi are upturned to the middle of the front or beyond, often beyond 

 the vertex. In the fore wings veins R4 and R5 are usually separate 



and vein Cua arises close to the 

 angle of the discal cell. In the 

 hind wings the second anal vein is 

 strongly forked at the base. 



Nearly forty North American 

 species are now known. These 

 represent two subfamilies. 



Subfamily Glyphipterygi- 

 N^.^ — This subfamily is composed 

 chiefly of the species of the genus 

 Glyphipteryx. In this genus the 

 wings are moderately broad (Fig. 

 774) and the fore wings have a 

 lobe-like prolongation between 

 veins R4 and R5. Ten species are 

 now listed from our fauna. 



Subfamily Choreutin^. — 

 In this subfamily the wings are 

 broad and triangular (Fig. 775), 

 and usually with narrow fringes. 

 ■pig.yy^.—WingsoiSimcetMsfabriciana. The moths bear a _ Striking re- 

 (After Spuler.) Semblance to tortricids. The lar- 



vae live under webs on leaves or 

 between leaves that are fastened together. 



