Dec, 1902.] LeNG : CiCINDELID.E OK THE PiNE BARRENS, N. J. 237 



away from the streams, the tallest tree rises four feet above the ground 

 and the usual elevation of the pines is about eighteen inches. 



Throughout the Pine Barrens the conditions are suitable for Cicin- 

 delidae ; the roads are sandy, the trees are far apart and the soil in 

 which they grow is nearly pure sand, and extreme dryness prevails 

 everywhere except in the immediate vicinity of the streams and the 

 white cedar swamps which often border them. On the East Plain, 

 the sand is mixed with pebbles, not universally, but qitite generally. 

 The genus is represented by an extraordinary number of species and 

 individuals of which the following is a list as far as they are known 

 to me : 



Cicindela unipunctata Fab. 



One specimen was taken by Mr. Harris at I>akewood, June 22, on 

 a path running through the pine woods. 



Cicindela modesta Dej. 



This variety is very abundant on sand)' roads from the earliest 

 warm days in the spring until about the end of June. In midsummer 

 it cannot be found in numbers and we have no records of its capture 

 between July 4 and August 29, although the locality Avas visited July 

 29. It occurs again in September in considerable numbers and some 

 individuals probably hibernate and reappear in the spring. 



It has been found at all the places visited and the exact dates of 

 capture are April 10, April 15, May 24, June 4, July 4, August 29, 

 September 2, September 22. 



Cicindela rugifrons Dej. 



This species occurs with the preceding but less abundantly. The 

 earliest date on which it is recorded is April 28, the latest date is 

 October 21. 



A comparison between the Pine Barren specimens of this species 

 and those found at Aqueduct, Long Island, by Mr. Louis H. Joutel 

 and Mr. Davis, shows some minor differences which might be expected 

 to result from the long period of time during which there can have 

 been no communication between these two branches of the species. 

 The Long Island specimens, for example, vary in their markings much 

 more than the New Jersey specimens and even immaculate individuals 

 have been found Apparently the influence of isolation can be traced 

 in these differences. 



