30 



Length, about three-fourths of an inch. 



Mr. Scudder states that this species frequents the branches of 

 the small birch trees among the White Mountains of New Hamp- 

 shire. It has also been taken on Speckled Moimtain in Maine, 

 and on Graylock in Massachusetts. 



Pezotettix manca. Smith. 



Top of the head, disk of pronotum, and elytra, brown. Sides of 

 the pronotum smooth and shining in front of the last transverse 

 impression ; behind it thickly punctate ; a broad black band ex- 

 tending from the eyes over the upper half of the pronotum, and 

 continued upon the other thoracic segments and along the side of 

 the abdomen, inclosing on the thorax an oblique whitish spot, 

 which extends from the base of the elytra to the posterior coxse. 

 Hind femora brown, yellow below, banded with black above ; 

 tibiae, bright red. 



Length, about three-fourths of an inch ; length of elytra, from 

 one-sixth to one-seventh of an inch ; posterior femora, about four- 

 tenths of an inch. 



Pezotettix borealis. Scudder. 



Dark brown, darkest above ; a broad black band behind the 

 eye, extending over the upper portion of the sides of pronotum to 

 the hind border ; front, dark yellowish brown ; mouth parts, dirty 

 yellowish ; legs, yellowish brown ; hind femora streaked with 

 black, with the tip black ; hind tibiae reddish, with a faint, paler 

 annulation near the base, the spines tipped with black ; wing- 

 covers, dirty, yellowish brown, spotted irregularly with darker 

 brown ; wings colorless, a little dusky on costal border. 



Length of body, about two-tliirds of an inch ; of wing covers, 

 nearly half an inch ; of hind femora, nearly half ai) inch. 



This northern species has been taken on Speckled Mountain in 

 Maine, and on the White Mountains, New Hampshire. It is 

 thought by some to be identical with P. frir/kla of Northern 

 Europe. 



Genus Acuidium. Burmeister (1838). 



Prosternum armed with a prominent, blunt spine ; median carina 

 of the pronotum somewhat prominent ; wings and wing covers 

 well developed, as long or longer than the abdomen ; abdomen of 

 the male not swollen at the ti}) ; eyes, elongate, oval. 



The species may be separated as follows : — 



f Wing covers longer than the abdomen .... alutaceum. 

 \ Wing covers about as long as the abdomen . . . riihiginosum. 



