THE CANADIAN ENTOMOLOGIST. 125 



another species of this same genus of plants. The type of nevada 

 from still another, while the type of rubida came from a location 

 in which a species of Eriogonum grew and the colour of the plant 

 would harmonize better with the striking shade of red of the insect 

 than any other plant there. In addition to these records, pannosa 

 has been found to be strictly confined to a shrubby species of 

 Eriogonum on the hills of California. Another record which again 

 shows diversity in food plants is that of oshorni, which has been 

 found by Van Duzee to be strictly confined to a species of Tamarix 

 in California. 



Eutettix Columbiana, n. sp. 



Resembling perelegantis and mildredcF, but lighter in colour 

 and lacking the definite shades of orange and olive. Form of 

 saucia nearly. Length: d^ 5 mm. 



Vertex roundingly right angled, the apex blunt, disc slightly 

 sloping, depressed before the margin. Pronotum as in saucia, 

 lacking the definite gibbous appearance of perelegantis. Venation 

 as in saucia. 



Colour ivory white, with a pale tawny and olive brown saddle 

 with black points. Vertex creamy, with traces of four brown 

 points on the margin, a pair of rather large irregular spots on the 

 posterior submargin a little more than their own width from the 

 eyes. Face and below creamy. Pronotum ivory, mottled with 

 olive and brown, omitting the lateral and most of the anterior 

 margin; two definite black spots behind the inner angle of either 

 eye and two irregular ones nearer the median line. Scutellum 

 creamy, the lateral angles olive brown. Elytra ivory sub-hyaline, 

 with an olive brown saddle as in saucia, but lighter or wanting 

 along the sutures, and with three definite dark points extending 

 almost to the claval suture, apical cloud reduced to spots on third 

 and fourth nervures. 



Genitalia of male as in saucia. 



Described from two males from Wenatchee, Washington, 

 collected by the writer. From saucia this species can be separated 

 by the definite black spots on the pronotum, from perelegantis b}- 

 the structure of head and pronotum. 



