258 



PROCEEDINGS OF THE ACADEMY OF 



[April, 



northern insect, and these individuals probably belonged to the 

 present form. 117 



Belocephalus subapterus Scudder. 



South Carolina. Homerville, VIII, 27, 1911, (R. & H.), 



Florence, IX, 6, 1911, (R. & H.), 1 cf , 1 J uv - 9 ■ 



2 juv. d\ 1 juv. 9 . Thomasville, XII, 18, 1908, (H.), 2 <?. 



Ashley Junction, VIII, 15, 1913, (R.), Florida. 



Vemaiee,"lX, 4, 1911, (R. & H.), Jacksonville VIII, 25 1911, (R & H ), 



4 ji o uv rf 7 iuv 9 l JUV - 9 ; XI ' b - 1911 ' Gl P - En " ! ''- 



*<?,* juv. cf, i juv. v . hardt), 1 9 , [B. I.]. 



Georgia. Atlantic Beach, VIII, 24, 1911, (R. & 



Savannah, VIII, 14, 1903, (A. P- H.), 2 cf, 2 9, 2 juv. cf, 1 juv. 9 . 



Morse), 1 juv. cf. Hastings, (A. J. Brown), 3 cf, 3 9, 



Isle of Hope, IX, 3, 1911, (R. & H.), 1 juv. cf, 1 juv. 9. 



2 cf 39 1 juv 9 Williston, I, 9, 1S93, (M. H. Barton), 



Sandfly, IX, 3, 1911, (R. & H.), 2 cf , 1 <?> [U. S. N. M.]. 



1 9 2 juv 9 Sanford, X, 24, 1889, (W. A. Gould), 



Jesup,' IX, 1, 1911, (R. & H.), 1 juv. <?. 1 9 , [U. S. N. M.]. 



Brunswick, VIII, 30, 1911, (H.), Orlando, (A. Haden), 19, [Hebard 



1 juv. cf • Cln -1- 



Cumberland Island, VIII, 31, 1911, Fort Drum, 1 9 , [Hebard Cln.]. 



(R. & H.), 1 juv. cf . Live Oak, VIII, 26, 1911, (H.), 1 9 . 



Billy's Island, IX, 1-5, 1913, (J. C. Tallahassee, VIII, 8, 1903, (A. P. 



Bradley), 1 juv. cf ; XII, 23, 1913, Morse), 1 juv. cf. 



(J. C. Bradley), 8 cf . 



Measurements (in millimeters) of extremes. 



Produc- Ventral 



tion of length of 



vertex fastigium Length of 



Length of beyond of Length of caudal 



body. eye. vertex, pronotum. femur. 



Florence, S. C 25.3 2.9 1.9 6.9 14.7 



Yemassee, S. C 24.6-26.3 2.7-2.8 1.7-2 6.5-6.9 13.3-14.3 



Sandfly, Ga 27.4-29.7 3 -3.2 2.4-2.2 7-7.2 15-15.1 



Billy's Island, Ga 23.8-27.3 2.5-3 1.7-2.1 6.2-7.7 13.1-15.8 



Thomasville, Ga 24.5-24.7 2.4-2.6 1.6 6.3-7.3 13.5-15.1 



Atlantic Beach, Fla. 32.3-36.1 3.3-4 2.3-3.2 7.8-8.3 16.1-18.8 



9 



Live Oak, Fla 37.3 4 3.1 8.7 18.8 



These measurements show that scarcely any size variation may 

 be correlated with the northern and southern distribution of this 

 insect. Material from the region about Jacksonville (including 

 Atlantic Beach and Pablo Beach) is the largest we have ever seen; 

 this has been found to be true in the case of a number of other species 

 and is apparently due to environmental conditions. The series 

 from the not distant Billy's Island in the Okeefenokee Swamp 



117 Caudell records a specimen of what he considered elongatus, which we find 

 to be a synonym of camellifolia, as taken when stridulating "a higher quicker 

 note." The unquestionable status and full distribution of intermedia will only 

 be known when much larger collections of these insects have been made. 



