1913.] NATURAL SCIENCES OF PHILADELPHIA. 471 



brown. Tegmina and dorsal surface of abdomen dark clove brown. 

 Ovipositor dark Vandyke brown. 



The majority of specimens not from Indiana are, however, some- 

 what differently colored. These specimens have the entire dorsal 

 surface of the body dark clove brown, while underneath the usual 

 coloration is raw umber. In such specmiens the maxillary palpi 

 usually have the third joint a rather light brown, the penultimate 

 joint considerably paler and the terminal joint wholly clove brown. 

 Both males and females of the present species have a rather shiny 

 appearance. 



Distribution. — The present species has been found on the Atlantic 

 coast from Natick and Dover, Mass., to Wilmington and Lake 

 Waccamaw, N. C, and inland has been taken as far north as Algon- 

 quin Park, Ont., and as far west as Starke County, Ind. 



It is a swamp and bog inhabiting species, and is consequentlj^ very 

 local in distribution. 



Biological Notes. — The present species is extremely secretive, 

 living in the recesses of swamps and bogs, usually in and about 

 sphagnum mosses. In such situations palustris may sometimes be 

 found in very large numbers, but the peculiar habitat combined with 

 the small size and sombre coloration of the insects themselves, 

 explains their usual scarcity in collections. When disturbed, indi- 

 viduals of })alustris leap about vigorouslj^ and then burrow into the 

 sphagnum mosses or hide under roots or debris. Dr. Walker de- 

 scribes the song of this species as "a continuous and rather feeble 

 trill" and notes a similarity to that of carolimis. 



No macropterous specimens of the species have been taken, and 

 it is our opinion that such do not occur, owing to the fact that in the 

 present species the reduction of the tegmina has reached a rather 

 advanced stage and is found to vary to an extremely small degree. 



Synonymy. — No synonyms of the present species have occurred, 

 but AUard has unfortunately recorded small dark specimens of 

 N. fasciatus as this species. 



Specimens Examined. — 56: 28 males, 28 females. 



Ragged Lake, Algonquin Park, Ontario, Aug. 18, 1903, (E. M. Walker) 2 cT, 

 3 ? [University of Toronto and Blatchley Collection]. 



Fulton County, Indiana, Oct. 5, 1898, (Blatchley) 2 d^, 2 9 . Type, Allotype, 

 Paratvpes. [Blatchley Collection, U. S. N. M.]; Aug. 15, 1902, (Blatchlev) 5 d" , 

 6 9 [t'. S. X. M., A. N. S. P., Hebard Collection]. 



Natick, Massachusetts, Oct. 16, 1905, (from Morse) 3 9 [Hebard Collection]. 



Dover, Mass., Oct. 11, 1905, (from Morse) Sd", 1 9 [Hebard and Blatchley 

 Collection]. 



New Haven, Connecticut, Aug. 18, 1910, (Walden) 1 cf', 1 9 [Hebard Col- 

 lection]. 

 31 



