124 NORTH AMERICAN BLATTIDAE 



portionately longer than in male, but with discal sulci similarly weakly defined. 

 Tegmina and wings as in male, but less elongate; extending, however, beyond the 

 apex of the abdomen. Supra-anal plate about half as long as broad, trigonal, with 

 lateral margins concave-convergent and apex rather sharply rounded. Cerci simi- 

 lar to those of male but proportionately shorter. Subgenital plate convex, weakly 

 produced, with distal margin broadly convex. 



The female before us from Natchez, Mississippi, differs only in having the pro- 

 notum shorter and the concavity of the lateral margins of the subgenital plate 

 weaker. 



Measurements {in milUnicters) 



7I Length of Length of Width of Length of Width of 



body pronotum pronotum tegmen tegmen 



Washington, District of 



Columbia (3)14.3-14.7 3-3-3-4 4-6-4-7 15. 7-15-9 4-9-5 



Falls Church, Virginia . 12.5 2.9 4.1 13.4 4.3 



Tappahannock. Virginia 



{6 para types) 13. 4-14. 6 3-2-3-4 4-3-4-7 I3-8-I5-4 4-5-4-8 



Raleigh, North Caro- 

 Vmajype 15.2 3.3 4.6 15.2 4.7 



Raleigh, North Carolina 



{2 paratypes) 14. 2-15. 4 3-3-3-4 4-5-4-7 i5-3-i6 4-9-5-2 



Southern Pines, North 



Carolina 16 3.4 4.6 15. i 4.7 



Rich Mountain, Arkan- 

 sas 12.9 3.4 4.6 14.8 4.7 



Dallas, Te.xas 13.7 3.4 4.4 13.3 4.3 



Waco, Texas (6)12.2-13.1 3-1-3-3 3-9-4-4 ii.S-i3-8 3-9-4-2 



o 



Spartanburg, South Ca- 

 rolina, allotype 12.2 3.6 4.1 11.8 3.9 



Crawford County, In- 

 diana 12.3 3.2 4.1 II. 5 4 



Natchez, Mississippi.. . 10.7 3.2 4.1 11. 4 3.8 



Though individual size variation is evident, it appears that, in 

 the drier portions of the species' distribution in Texas, an average 

 reduction in size occurs. 



Coloration. — d^ . {Type. Normal.) Head light ochraceous-buff ; 

 the occiput to between the ventral margins of the ocelli suffused 

 with ochraceous-tawny ; a narrow, transverse suffusion of the same 

 color mesad on the face and separated from the marking described 

 by a very narrow line of light ochraceous-buff, which unites the 

 light ochraceous-buff ocelli. IJmbs light ochraceous-buff, the 



