NORTH AMERICAN ACRIDIIDjE. 37 



Lower Austral, coastwise. This is a striking and beautiful 

 species, common in Florida, especially on the strand, where it is 

 associated with Psinidia fenestralis and Trimerotropis citrina. (See 

 PI. 4, Fig. i ; PI. 5, Fig. i) The examples from North Carolina are so 

 exactly intermediate in character between this species and its northern 

 relative marmorata as to suggest the possibility that the two forms 

 are but geographic races of the same species. Series of specimens 

 from intermediate points are needed to determine the relation of 

 these two forms. 



Psinidia fenestralis Serv. 



Virginia: Cape Henry, Sept. 7, (juv. 4) ; (Virginia Beach, July 2, juv. 3). 

 North Carolina: Fure, July 6, (juv. 4, 5) ; Tarboro, July 7. 

 Georgia: Tybee Island, Aug. 12, 13, (juv. 3, 5). 



Florida : Carrabelle, Aug. 9, (juv. 4) ; Fort Barrancas, Aug. 3, (juv. 4) ; 

 Live Oak, Aug. 10 ; Warrington, Aug. 4. 



Austral and Transition zones. Widely distributed ; locally 

 common in the Atlantic States on large or small bare sandy areas. 



Trimerotropis saxatilis McNeill. 



Georgia: Sand Mountain, Aug. 25, near White Oak Gap and Flat Rock ; 

 Stone Mountain, July 28. 



Upper Austral zone. This is a very local species which was 

 met with but twice. It frequents the weathered surfaces of rocky 

 ledges, which it exactly matches in coloration when at rest, closely 

 resembling Circotettix verruculatus of the north in color and habits, 

 but being smaller in size, and with a relatively very weak stridu- 

 lation. (See PI. 2, Figs. 1, 2, and pages 14, 15.) 



Trimerotropis maritima Harris. 



Virginia: Cape Henry, July 2, 4, Sept. 7, (juv. 3, 5) ; Virginia Beach, 

 July 2, (juv. 5). 



Maritime ; coastwise from Maine to North Carolina, and about 

 the Great Lakes. (See the next species.) 



Trimerotropis citrina Scudd. 



Virginia : Cape Henry, July 2, 4, Sept. 7 ; Virginia Beach, July 2, 4. 

 North Carolina : Governor Island, Aug. 20 ; Greensboro, July 10 ; Mor- 



ganton, July 20, (juv. 5) ; Murphy, Aug. 22 ; Salisbury, July n ; 



Selma, July 7 ; Tarboro, July 7, (juv. 4) ; Tunis, July 5. 

 South Carolina: Columbia, Aug. 16, (juv. 5). 

 Georgia : Marietta, July 27 ; Stone Mountain, July 28 ; Tybee Island, Aug. 



12, 13, (juv. 2). 

 Florida : Carrabelle, Aug. 9, (juv. 4, 5) ; Fort Barrancas, Aug. 3, (juv. 4, 5); 



Marianna, Aug. 7 ; Warrington, Aug. 4. 

 Alabama : Flomaton, Aug. 1 ; Greenville, July 31. 

 Tennessee: Chattanooga, Aug. 24. 



