138 NORTH AMERICAN BLATTIDAE 



The young of the present species are in general coloration (nor- 

 mal Eastern material, recessive) ochraceous-tawny, mottled with 

 darker brown. One specimen before us from Petersburg, Vir- 

 ginia, is much darker, while those from southwestward (Thomas- 

 ville. Georgia) are uniform blackish brown, except that (in the 

 majority) the pronotum is very feebly and narrowly margined 

 cephalad and laterad with buffy. 



The ootheca of the present species closely resembles that of 

 P. fiilvescens, but the sides are slightly more convex and the sutural 

 projecting margin heavier and more serrate. The dimensions of 

 those before us from Petersburg, Virginia, are: 7.8 by 3.6; 7.8 by 

 3.7 ; 8.2 by 3.7, and 8.6 by 3.6 mm. The ootheca of a large female 

 from Plummer's Island, Maryland, is 8.6 by 3.8 mm. 



The material listed below defines the known distribution of the 

 species. It is almost certain that the range of the species is 

 continued to the Gulf coast in northern Florida and along that 

 boundary westward to the limits of the humid regions in Texas. 



Speci^neus Examined : 94; 10 males, 43 females, 41 immature incH\iduals. 



Swarthmore, Pennsylvania, VI, 12, 1914, (E. T. Cresson, Jr.), i cf , [A. N. S. P.]. 



Anglesea, New Jersey, VII, 8, i 9 , [Hebard Cln.]; VII, 11, (P. Laurent), i d","* 

 [A. N. S. P.]. 



Wildwood Junction, N. J., VII, i to 8, 1914, (Hebard; trapped, molasses jars in 

 oak forest), I 9, i juv. 9, [Hebard Cln.]. 



Delaware, i o^, [A. N. S. P.]. 



Plummer's Island, Maryland, VI, 1912, (H. S. Barber), i 9 with ootheca; VII, 

 23, 1905, (H. S. Barber), i 9, [both U. S. N. M.]. 



Petersburg, Virginia, VII, 23, 1913, (Rehn and Hebard; under signs on red oaks 

 and short-leaf pines), 19 9, 10 juv. d", i ju\-. 9, 4 oothecae, [Hebard Cln. and 

 A. N. S. P.]. 



Weldon, North Carolina, VII, 24, 1913, (Rehn and Hebard; scarce under signs 

 on trees), 2 juv. cf , [Hebard Cln.]. 



Goldsboro, N. C, VH, 25, 1913, (Rehn and Hebard), i juv. cf , [Hebard Cln.]. 



Raleigh, N. C, V, 22 to VI, 15, 1904 and 1905, (C. S. Brimle\-: 3 lired \'l, <) to 

 15; I attracted to light), 5 d' ; VH, 6 to VHI, 2, 1905, (C. S. Brimley; sugaring), 

 3 9 , [all Hebard Cln., A. N. S. P. and U. S. N. M.]. 



Charlotte, N. C, VII, 27, 1913, (Rehn and Hebard; under signs on white and 

 red oaks and other deciduous trees), 4 juv. d", 2 juv. 9 , [Hel)ard Cln. and A.N.S. P.]. 



22'' Incorrectly recorded by Rehn and Hebard as coiiloniaua. 



