336 STUDIES IN AMERICAN TETTIGONIIDAE (ORTHOPTERa) 



easy that the examination of the type material was only desired 

 to fill out the record of types studied. 



This form is typical over southern New England, the eastern 

 mountain, Piedmont and northern Coastal Plain regions, extending 

 westward over the central Mississippi Valley region, also occurring 

 typical on the summit of Rich Mountain in the Ozark Mountains 

 of western Arkansas. The most northern definite locality from 

 which the form has been recorded is the White Mountain region, 

 while the most western in the Mississippi region is Moline, Illi- 

 nois. The most southern localities from which we have seen 

 typical rotimdifolia rotundijolia are Spartanburg, South Carolina; 

 Toccoa, Tuckoluge Creek and Blue Ridge, Georgia, and the sum- 

 mit of Rich Mountain, Arkansas. In northwestern and central 

 Georgia and in the southern portion of the Coastal Plain we find 

 the specimens of this species having an abbreviation of the wings, 

 accompanied by a reduction of the humeral sinus and broaden- 

 ing of the dorsal section of the lateral lobes of the pronotum, 

 thus approximating rotundifolia parvipennis. We have examined 

 individuals exhibiting this intermediate condition from Winter 

 Park, North Carolina; Macon, Warm Springs and Sand Moun- 

 tain, Georgia, and Valley Head and Cheawha Mountain, Alabama. 



Measurements (in millimeters) of average individuals of rotun- 

 difolia rotundifolia, rotundifolia iselyi and rotundifolia parvipennis, 

 with certain measurements of the last mentioned two from other 

 authors, are as follows: 



