NORTH AMERICAN ACRIDIID^E. 11 



coast was reached a second time at Carrabelle ; eastward to Live 

 Oak; northeast via Waycross to Savannah and the Atlantic coast 

 at Tybee Island; north and west through South Carolina to Ashe- 

 ville; a second trip through the valley, including stops at the Balsam 

 and Valley mountains, and on to Chattanooga; northeast to Johnson 

 City, from which point Roan Mountain was visited a second time, 

 and also Linville and Grandfather Mountain; northeast and east 

 through Virginia to Roanoke and Norfolk, returning to Boston by 

 steamer on September 10, after ten weeks in the field. The entire 

 distance traveled was about 4,000 miles, of which 3,000 was through 

 the territory under observation. The map on page 10 will render 

 the route clear at a glance. 



CLIMATAL CONDITIONS AFFECTING RESULTS. 



The weather, on which so much depends, was as favorable as 

 could be expected, though in parts of the trip collecting was much 

 interfered with at times by showers, several being not unusual in 

 one day. The heat of the southern summer is also a factor to be 

 reckoned with. 



The writer was informed at nearly every locality during the first 

 half of the trip, that the season was two to three weeks late. This 

 should be taken into consideration when calculating the time of 

 appearance of species, and attention is called to it in the proper 

 place. 



LIFE ZONES OF THE REGION VISITED. 



In the region examined four life zones are represented: The 

 Lower Austral, including the major part of the Gulf strip of the 

 Austro-riparian division ; the Upper Austral, the Transition, and 

 the Canadian. The Austral zones cover all of the country except 

 the higher mountains; the Transition and Canadian cover the 

 mountains and valleys above an altitude of about 2,500 feet. No 

 attempt was made at an accurate delimitation of these zones, 

 owing to the rapid character of the trip, but many notes on the zonal 

 distribution of the various species will be found in the accompany- 

 ing list (p. 24). Representative species of each zone occur, but some 

 boreal species which it was hoped to find were not observed. The 

 Canadian zone is restricted to limited areas on the higher summits, 

 but austral species, owing to proximity of -the Austral zone, are 

 often found within its borders. Its characteristic fauna, while 

 numerically insignificant, is of extreme interest, being represented 



