EDMUND H. GIBSON 73 



Thistle {Cirsiutn species) 



distincta Osborn and Drake 

 Vetchling (Lathyrus species) 



distincta Osborn and Drake 

 Walnut {Juglans species) 



juglandis Fitch 



parshleyi Gibson 

 Willow (Salix sieboldiana) 



pallipes Parshley 

 Willow (Salix species) 



salicata Gibson 



salicis Osborn and Drake 



elegans Drake 



Distributional Groupings of Species 

 The grouping as listed below is also as an aid to the identifica- 

 tion of species. The definite limits of distribution of only a few 

 species are known, hence the following should be considered 

 merely as a guide: 



United States (universally distributed in United States) — cydoniae Fitch, 

 marmorata Uhler, pergandei Heidemann. 



Eastern (east of the Rocky Mountains) — aescuK Osborn and Drake, arcuata 

 Say, associata Osborn and Drake, bulbosa Osborn and Drake, celtidis Osborn 

 and Drake,/iKato Say, contracta Osborn and Drake, coryli Osborn and Drake, 

 juglandis Fitch, pallida Osborn and Drake, parshleyi Gibson, pruni Osborn 

 and Drake, spinulosa Gibson, uhni Osborn and Drake, mali Gibson, elegans 

 Drake, heidemanni Drake, betidae Drake, bellula Gibson. 



Western (Rocky Mountains and W est)— caelata Uhler, coloradensis Gibson, 

 confralerna Gibson, contaminata Gibson, distincta Osborn and Drake, drakei 

 Gibson, elegans Drake, eriodictyonae Osborn and Drake, hoodiana Osborn and 

 Drake, innnacidata Osborn and Drake, iiwurvata Uhler, morrilli Osborn and 

 Drake, obliqua Osborn and Drake, padi Drake, pura Gibson, salicata Gibson, 

 piercei Gibson, lactea Drake, occidentalis Drake. 



Northern — molliculata Osborn and Drake, salicis Osborn and Drake. 



Northeastern (New England States) — boreatis Parshley, cyrta Parshley, 

 pallipes Parshley. 



Southeastern — floridana Heidemann, salicis Osborn and Drake. 



Southern (Southern United States, Mexico, Central America and South 

 America) — brunnea Gibson, decens Stdl, fiiscigera St&l, gossypii Fabricius, 

 hispida Uhler, mexicana Gibson, setosa Champion, spinosa Dugfe, unifasciata 

 Champion, fuscomacidata StS,l, exigua Drake. 



trans, am. ent. soc, xliv. 



