136 NORTH AMERICAN BLATTIDAE 



just beyond the cereal bases, to the rather sharply rounded apex. 222 Cerci shorter 

 than in male, with lateral margins feebly crenate distad. Subgenital plate convex; 

 distal margin \-ery broadly rounded, weakly truncate. 



Measurements {in millimeters) 



-, Length of Length of Width of Length of Width of 



^ body pronotum pronotum tegmen tegmen 



Anglesea, New Jersey. . 17.3 4*'^ 6.2 20. 8 6.6. 



Swarthmore, Pennsyl- 

 vania 17.8 4.3 5-3 20.7 6.3 



Raleigh, North Caro- 

 lina (5) 13. 8-17. 6 3.6-4.1 4.7-5.2 16. 6-18. 8 5-2-5.7 



Tallulah, Louisiana.. . . 16.7 4-3 5-6 18.2 5.7 



Lafayette, Louisiana.. . 16.5 3.8 4.8 16.4 5.1 

 9 



Anglesea, New Jersey. . 16.2 4.9 5-9 9-8 5-1 



Wildwood Junction, 



New Jersey 14.3 4.2 5.7 7.8 4.3 



Petersburg, Virginia. .. (19) 12. 7-16. 2 4-4.8 5-3-6-6 7-3-9 4-2-4-9 



Raleigh, North Caro- 



Hna (3) 15-16. 2 4-6-4-7 5-7-5-8 8.4-8.2 .4-6-4-7 



Southern Pines, North 



Carolina (7) 13. 8-16. 5 3-8-4-8 5-1-6-2 7-2-9-9 4-1-4-9 



Augusta, Georgia (4) 13-13 -8 3-7-4-3 4-8-5-3 6.6-7.9 4-46 



Albany, Georgia 13. 1 4 5 7-4 4-^ 



Opelika, Alabama. ... (2) 12.7 3-8-3-8 4-7-4-8 10. 8-10. 8 4-4.3 



Each series of any size shows great individual size variation. 

 Considerable individual color variation also occurs. The females 

 from Albany, Georgia and Opelika, Alabama, have both head and 

 pronotum more deplanate and are much darker, than any others 

 before us, while those from Opelika show an exceptionally full 

 development of both tegmina and wings. These features appear 

 to be at least in part geographic, but, from the evidence at hand, 

 we do not think that sufficient differences of fixity in the same will 

 be found to w^arrant the recognition of this condition as a geo- 

 graphic race. 



Coloration. — d^ . (Recessive.) ( i , Anglesea, New Jersey.) Head 

 with occiput cinnamon, thence a broad, vertical band of the same 

 color extends ventrad to mesad on the clypeus, ocelli and genae 



222 The apex of the supra-anal plate varies in the series before us from very sharply, 

 to moderately broadly, rounded. Nothing is found in this plate to assist in separating 

 females of divisa and pensylvanica. 



I 



