1913.] NATURAL SCIENCES OF PHILADELPHIA. 477 



Measurements {in millimeters) . 



North Lake Waccamaw, N. C. 

 Carolina " < 



Type d' d' d" ? 9 



Length of body 7.6 8 . 5 (8 . 2-8 . 8) 7 . 2 (6 . 3-8 . 4) 



Length of pronotum 2. 1.8(1.7-2. ) 1.9(1.6-2. ) 



Caudal width of pronotum . 2.7 2 . 7 (2 . 5-2 . 9) 2 . 4 (2 . -2 . 7) 



Length of tegmina 5.2 5 .4 (5 . -5 .8) 3 . (2.9-3.4) 



Length of wings 



Length of caudal femur 6.2 6 . 1 (5 . 9-6 . 4) 5 . 8 (5 . -6 . 4) 



Greatest width of caudal 



femur 2.3 2.2(2. -2.5) 2.1(1.9-2.2) 



Length of ovipositor ' 3.5 (2.6-3.8) 



Chestnut Hill, Pa. 



d^ 9 9 d' 9~^ 



Length of body 7.4(6.9-7.8) 7.2(6.4-7.8) 7.7 6.7 



Length of pronotum 1.8(1.7-2.) 1.7(1.6-1.9) 1.6 1.7 



Caudal width of prono- 

 tum 2.6(2.1-2.8) 2.4(2.1-2.7) 2.6 2.7 



Length of tegmina 5 . 1 (4 . 8-5 . 4) 3 . 5 (3 . 3-3 . 7) 5 . 4.4 



Length of wings ' 9.2 10.4 



Lengthof caudal femur . 5.5 (5.8-6. ) 5.4 (5. -6. ) 5.5 5.7 

 Greatest width of caudal 



femur 2. (1.9-2.1) 2.1(2.-2.3) 1.9 2. 



Length of ovipositor 3.5(3.2-3.8) 3.5 



Averages in Extremes in female 



ovipositor length. tegminal length. 



De Grassi Point, Ont 3 . 7 (3 . 6-3 . 9) 3.5-3.7 



Raleigh, N. C 3.2 (3. -3.4) 3. -3.4 



Florence, S. C 3.5 (3.1-3.7) 3. -3.8 



Thomasville, Ga 3.1(3. -3.2) 2.4-3. 



Beaumont, Tex 3 . 2 (3 . 1-3 . 4) 3.-3.2 



The specimens before us indicate that there is a certain amount of 

 decrease in both ovipositor and tegminal length in female specimens 

 of the present species southward in its distribution. In size the 

 species is somewhat variable over its entire range, the smallest 

 specimens before us being found in series from Ontario, Pennsylvania, 

 Georgia, and Florida. Macropterous specimens are exceedingly 

 scarce in the north, almost all of the long-winged specimens before 

 us are from Georgia and Florida. 



Color Notes. — The individuals here described are typical of the 

 majority of the specimens at hand. Head very dark mummy brown, 

 the faintest kind of longitudinal lineation barely suggested on the 

 caudal portion of the occiput, which portion is slightly paler than 



