1910.] NATURAL SCIENCES OF PHILADELPHIA. 159 



the present series of young, twenty-five are of the green phase and 

 fourteen are of the brown, irrespective of sex. 



The species was found most abundant on sandy soil overgrown 

 with wire-grass and other low plants in areas of scrub oak and pine 

 (Jacksonville), but was also found widely distributed through the 

 undergrowth of pine and mixed forests and in fields and weedy 

 areas, particularly in somewhat damp situations. The insect is known 

 on the Atlantic coast from Medford, New Jersey, south to Miami, 

 Florida, and is found in the Appalachian valleys as high as 2,000 feet; 

 north of Maryland the species is decidedly scarce, and it is known 

 from southern Florida from but a single specimen. 



Eritettix simplex (Scudder). 



Maryland. North Carolina. 



Laurel, V, 14, VI, 4, 1911, (Marshall), Greensboro, VII, 26, 1913, (R. & H.), 



21 o\ 9 9 , [U. S. N. M.]. 3 juv. d\ 2 juv. 9 . 



Glen Echo, VII, 10, 1914, (H.), 19. Black Mountain, VI, 1912, (W. Beu- 



Pineypoint, VI, 17, (Pergande), 19, tenmiiller), 19, [Davis Cln.]. 



[U. S. X. M.l. 



South Carolina. 



Virginia. Columbia, VII, 28, 1913, (R. & H.), 



Fredericksburg, VII, 20, 1913, (R. & 1 J uv - <?. 



H.), 3 juv. <?, 1 juv. 9. Georgia. 



Orange, VII, 21, 1913, (R. & H.), Clayton, VI, 1909, (W. T. Davis), 



3 juv. cf. 1 cT. 



Lynchburg, VII, 22, 1913, (R. & H.), Thompson's Mills, IV, 1910, (H. A. 



'2 juv. o\ 1 juv. 9 • Allard), 2 d\ 1 9 , [U. S. N. M.]. 



Petersburg, VII, 23, 1913, (R. & H.), Buckhead, VIII, 2, 1913, (R. & H.), 

 2 juv. cT. 2 juv. o\ 2 juv. 9 . 



Augusta, VII, 29, 1913, (R. & H.), 

 1 juv. d\ 1 juv. 9 . 



The series of young from Fredericksburg, Orange and Petersburg 

 average about 0.5 mm. in length, those from Lynchburg and Greens- 

 boro 7.2, w r hile the remainder average about 8.4 mm. In such very 

 early stages w r e find supplementary carinse weakly indicated on the 

 pronotum in five of the seventeen smallest specimens, and somewhat 

 more strongly but to varying degrees in five of the seven larger young, 

 while one of the latter has these carinse very weakly continued on the 

 head. All of these immature examples are of the more normal color 

 forms, excepting one male from Atlanta which has the dorsal surface of 

 head and pronotum uniformly black. These young individuals 

 have the median pronotal stripe present in the specimens which 

 have indications of supplementary carina?; examination of the series of 

 one hundred and fifty-nine adults of the present species in the col- 

 lections before us shows that the individuals having a strongly 

 defined median stripe have strongly defined supplementary carinse, 

 while those having the dorsum of the pronotum unicolorous wholly 

 lack supplementary carinse. 



