150 PROCEEDINGS OF THE ACADEMY OF . [April, 



Buckhead, VIII, 2, 1913, (R. & H.), Homerville, VIII, 27, 1911, (R. & H.), 



1 cf, 19. 7 d\ 8 9, 5 juv. 9. 



Vicinity of Stone Mountain, VIII, 3, Albany, VIII, 1, 1913, (R. & H.), 2 d\ 



1913, (R. &H.),7 cf, 7 9, 1 juv. <?. 4 9. 



Augusta, VII, 29, 1913, (R. & H.), De Witt, VIII, 19, 1912, 19, [Ga. 



1 juv. cf . State Cln.]. 



Summerville, 1 9 , [Ga. State Cln.]. Bainbridge, VII, 15, 1912, (J. C. 



Macon, VII, 30-31, 1913, (R. & H.), Bradley), 1 9. 



2 tf 1 , 1 9 . Spring Creek, VI, 7-23, VII, 16-29, 

 Columbus, VII, 16, 1913, (J. C. Brad- 1911-12, (J. C. Bradley), 5 d\ 5 9, 



ley), 1 juv. cf. 1 juv. d\ 1 juv. 9. 



Jesup, IX, 1, 1911, (R. & H.), 6 d\ „ ., 



3 9,1 juv. 9 . Florida. 

 Bruns'wick, VIII, 30, 1911, (R. & H.), Jacksonville, (T. J. Priddey), 5 tf, 



2 d\ 4 9, 3 juv. 9. 10 9, [Hebard Cln.]; IX, 7, 1913, 



Hebardville, V, 15, 1915, (H.), 2 rf 1 , (W. T. Davis), 1 d\ 



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



Suwannee Creek, VIII, 28, 1911, H.), 8 d\ 2 9 , 2 juv. 9 . 



(R. & H.), 2^,29. Live Oak, VIII, 26, 1911, (R. & H.), 



Mixon's Hammock, Okeefenokee 1 juv. 9 . 



Swamp, V, 16, 1915, (H.), 4 cf, 3 9, St. Augustine, XI, 8, 1911, (G. P. 



1 juv. cf. Englehardt), 19, [B. I.]. 



Burmeister's name polymorpha has long been known to be a 

 synonym of Say's lateralis, but since he described two forms, the 

 caudate and abbreviate phases of the present insect, efforts have 

 been made to retain this name for one of these. The uselessness 

 of employing names for such phases has already been commented 

 upon in the present paper. 



Examination of extensive northern series of the present insect 

 convinces us that they belong to a valid geographic race, Tettigidea 

 lateralis parvipennis (Harris), 36 which is exceedingly close to the 

 southern insect, but typical material from northern New England 37 

 may be separated from typical material of T. lateralis lateralis, 

 described from Georgia and East Florida, by the following characters: 

 form more robust; antennae heavier, joints not more than twice 

 as long as broad; frontal costa heavier; outline of dorsum of prono- 

 tum more decidedly broken cephalad of humeral angles, these angles 

 more pronounced. Under this geographic race falls the name given 

 for its caudate phase T[ettigidea] parvipennis pennata Morse. 38 



The large series before us show conclusively that, as the races 

 approach one another in distribution, their differential characters 

 become less and less appreciable; the material before us from the 

 pine barrens and adjacent coastal strip of New Jersey, from Delaware, 

 Maryland and northern Virginia, the series which we have recorded 



36 Morse discusses this question in Jour. N. Y. Ent. Soc, III, p. 109, (1895). 



37 Material from numerous localities in Pennsylvania and from the Delaware 

 River strip of New Jersey, now before us, is practically typical of the northern race. 



™Jour. N. Y. Ent. Soc, III, p. 109, (1895). 



