•je TETTIGID.ii OF NORTH AMERICA 



Total, /, 10.3 mm.; j. 11. 4-14. 5 mm.; pronot., f, 9.3 

 mm.; 5, 10. 5-12 mm.; post, fem., X, 5-6 mm.; $, 6-6.6 mm.; 

 width of shoulders, t, 3 mm.; 5, 3.5 mm.; antennae, $, 3 

 mm.; 5, 2.5-3 mm.; pronot., passes posterior femora, 

 .3-2.5 mm. 



Locality, Hudson Bay (Bolivar); Oregon TScudd.), Morse; 

 Laggan (Morse); Green River Wyo. (Morsej; Tennessee Pass, 

 Colo. (Bruner), Morse. 



Tettix brunneri, Bolivar, Essai XXXI., 92 (1887). 



Tettix tentatus, Morse, Jour. N. Y. Ent. Soc., VII., 200 



(1899)- 



Tettix granulatus, Hanc, Ent. News, 279 (Dec. 1899); 



Scudd., Cat. Orth. U. S., 16, 92 (1900); Scudd., Index N. 

 Am. Orth., 317 (1901 ). 



This species comes near Tettix bipuiictalus of Europe, but 

 the latter is much smaller, the median carina proportionately 

 more cristate, approaching Nomotettix and the frontal costa 

 of the face in bipiDictatns, viewed in profile, is not sinuate. 



ORNATUS GROUP. 



TETTIX ACADICUS, SCUDD. 



Plate IV., Figs. 3-3a. 



Body robust, light clay colored or fulvous, variously ornate, 

 sometimes with a light spot on the disc or more often with 

 two black spots on the pronotum. Vertex viewed from above 

 more than twice the width of one of the eyes, strongly 

 advanced beyond the anterior margin of the eyes, the front 

 margin obtuse angulate, lateral margins sinuate, between the 

 lateral margins and median carina longitudinally fossulate, 

 deeper between the middle of the eyes, occiput covered nearly 

 to the eyes; median carina of vertex distinct anteriorly, pro- 

 jecting from the middle of the front margin, on either side 

 slightly sulcate, mammiform eminence on each side posteri- 

 orly; frontal carina of vertex laterally compresso-rounded into 

 the sides; viewed in profile crown of head scarcely elevated 

 above the eyes. Frontal costa viewed in profile strongly 

 advanced beyond the eyes, distinctly sinuate between the 



