1907.1 NATURAL SCIENCES OF PniLADELPHIA. 279 



ORTHOPTERA FROM NORTHERN FLORIDA. 

 BY JAMES A. G. REHN AND MORGAN HEBARD, 



The material treated in this paper was collected by the authors 

 between the 10th and 20th of August, 1905. The localities at 

 which collecting was done are treated below in detail. The material 

 has been divided between the collection of the Academy and the 

 collection of the junior author, all types remaining in the latter. The 

 number of specimens examined is 1,356, representing eighty-nine 

 species, of which four are described as new. 



Localities. 



Jacksonville, Duval County. The few specimens taken at this 

 locality were captured in a weed-covered lot near the railroad station, 

 among the shrubbery in Hemming Park, on the street, on the Clyde 

 Line wharf, and at a suburb on the St. John's River known as Riverside. 



Pahlo Beach, Duval County. This small communit}', existing almost 

 entirely as a summer resort, is situated on the Atlantic coast of the 

 peninsula, seven miles south of the mouth of the St. John's River and 

 eighteen miles east of Jacksonville. The characters of the regions or 

 zones at this locality at which collecting was carried on are quite varied , 

 and a detailed description is necessary. 



The beach proper is very wide along this part of the coast, the 

 angle of its slope is very slight, and its boundary formed by rather 

 irregular sand dunes, some of which are thirty or more feet high. 

 The upper slopes and tops of the dunes are covered with a growth of 

 scrub or saw palmetto (Serenoa serratula). These dunes while irregu- 

 lar in height are very regular in the line of their steep barrier-like 

 seaward slope. 



Landward the (hmes drop into a level tract of sandy barrens varying 

 from one to two or more miles in width and extending for a considerable 

 distance up and down the coast. The barrens are thickly covered with 

 saw palmetto (Serenoa serratula) and several other low plants, making 

 everywhere a low but thick tangle. While usually dry in character 

 this open saw-palmetto region has numerous wet spots, some with the 

 sand little more than damp and others with considerable areas of true 



