1*.)8 Journal New York Entomological Society. [Voi. vii. 



NEW NORTH AMERICAN TETTIGINvE.— III. 

 By Albert P. Morse. 

 Paratettix hesperus, sp. nov. 



Vertex narrower than eye ; crown of head between eyes nearly twice as long as 

 its middle breadth, distinctly narrowed in front ; profile of face similar to that of 

 cucidlattis : facial costa narrowly forked but rather widely open below ; eyes smaller 

 and less protuberant. Pronotum granulose, similar in texture to that of aicitllatus, 

 but with the humeral angles less pronounced, giving a narrower and more convex ap- 

 pearance to the shoulders ; the hind process pass* the hind femora from 2.5 to 4 mm., 

 and the wings pass the process I to 2 mm. Tegmina narrow, acuminate at apex. 

 Fore and middle femora rather slender with upper margin convex, lower margin 

 nearly straight but slightly sinuate at distal third. First joint of hind tarsi slightly 

 longer than the remaining two together ; pulvilli rounded beneath, the proximal two 

 acutely pointed at tip and together about equal in length to the third. 



Color rather uniform, ranging from rufous or ash gray to black, but frequently 

 with the hind femora and lower third of sides of pronotum pale. 



Total length: $, 12-14; 9, 14-163. Pronotum: $, 10.3-11.8; 9, 12- 

 14.5. Body: (J, 7.5-9; 9,9-11. H. fem.: ^,5-6; 9, 6-7.5 mm. 



Similar to P. ciiciillatiis in size and form but more nearly related 

 to P. aztccus. 



The types consist of 276 $ $ and 9 9 taken by me at Glendale, 

 Or., Sept. 9, 1S97. I found it also at Ashland, Corvallis, Drain, and 

 Philomath, Or., Sept. 7-15, Ahwanee, Calif., Aug. 15; I have also 

 seen specimens from the Dalles, Or., Wickham (Bruner), Sonoma and 

 Marin Co., Calif., Osten Sacken (S. H. Scudder), and the follo\ving 

 from the Leland Stanford Jr. University collection : Santa Cruz Mts. , 

 Aug. 3; Palo Alto, May 10, 12, Aug. 3 ; Mt. Hamilton, May 13, 14 

 — in all 303 adults. Nymphs were common at Glendale on Sept. 9. 



This species appears to be locally plentiful on the stony margins 

 of rivers and streams in western Oregon and the Transition Zone of at 

 least the northern part of California. 



Paratettix toltecus extensus, new form. 



This is a dimorphic form of P. toltecus distinguished by the possession of fully 

 developed wings and pronotum of normal size, and may be recognized by the char- 

 acters of that species. 



Totallength : $, I1.5-13.5; 9, 12-14.5. Pronotum: $, 8.7-10; 9, 8.5- 

 II. 5. Body: ^,7-9; 9,9-11. H. fem.: ^,5-6; 9, 5.5-6.5 mm. The pro- 

 notum passes the hind femora about l mm. and the wings pass the pronotum from 2 

 to 3 mm. 



