114 PROCEEDINGS OF THE ACADEMY OF [April, 



ORTHOPTERA. 



BLATTID^J. 



Ischnoptera deropeltiformis (Brunner). 



South Carolina. Macon* VII, 30-31, 1913, (R. & H.), 



1 9. 

 Spartanburg, VIII, 6, 1913, (H.), Warm Springs, 850-1,200 ft., VIII, 



3 J uv - „ . 9-10, 1913, (R.), 1 9 . 



Georgia. gt. Simon's Island, VI, 8, 1911, 1 d", 

 Clayton, 2,000 ft., V, 18-26, 1911, (J. C. [Ga. State Cm.]; IV, 22-V, 12, 1911, 



Bradley), 2d 1 ; VI, 1909, (W. T. (J- C. Bradley), 1 cf. 



Davis), 1 d", 1 9 • Hebardville, V, 15, 1915, (H.), 1 9 . 

 Cornelia, V, 28, 1906, 1 d\ [Ga. 



State Cln.]. 



The males of this species show considerable variation in size, 

 certain individuals examined since the previous minimum measure- 

 ments were given by us 6 being considerably smaller than those 

 cited. The two smallest males seen measure as follows: 



Length Length Greatest Length Greatest 



of of width of of width of 



body, pronotum. pronotum. tegmen. tegmen. 



Key West, Fla 12.2 mm. 3.2 mm. 4.0 mm. 12.6 mm. 3.7 mm. 



St. Simon's Island, Ga 11.8 " 3.2 " 4.1 " 13.2 " 4.0 " 



From an examination of fifty specimens of the species, the speci- 

 mens of minimum size appear to be found only in Florida and the 

 coastal region of Georgia, the individuals from higher elevations being 

 uniformly larger. Specimens of similar size to those found in the 

 more elevated regions of Georgia, Virginia and the Carolinas occur, 

 however, in the area where the minimum individuals are found. 

 All of the present adult individuals have pale femora. 



The above specimens taken by us were found under dead oak 

 leaves (Macon), running on the ground in pine and oak woods (Warm 

 Springs) and under debris in garden (Hebardville). 



Ischnoptera nigricollis Walker. 



Georgia. Florida. 



Spring Creek, VI, 7-23, 1911, (J. C. Sanford, (S. B. Fraser), 2 d\ [Hebard 

 Bradley), 19. Cln.]. 



The exact relationship of this form to /. deropeltiformis is still 

 somewhat problematical. It seems possible that it may be a "salta- 

 tion" from the deropeltiformis stock, developing in Florida and 

 southern Georgia, but apparently nowhere else. Whatever the origin 

 of nigricollis may be, its distinctive coloration almost always permits 

 its ready recognition. 



6 Proc. Acad. Nat. Sci. Phila., 1910, p. 415, (1910). 



