1916.] NATURAL SCIENCES OF PHILADELPHIA. 267 



Florida. Atlantic Beach, VIII, 24-25, 1911, 



. . n viit •,- ion ,p tw ^ <R. & H.), lOtf, 9 9. 



.Jacksonville. Mil, 2.), 1011, ( R. & H.), Pal) i Bl>a( . h LX f, K)13, (W T 



11 -. 20 9, 5 9 n.; XI, 3, 1911, Davis ) ) , ^ 19. 



U.I. Davis), 2 o\ 19. LiveO:ik,VlII,10, 1903, (A.P.Morse), 



South Jacksonville, IX, 7, 28, 1911, 5 d\ 6 9 ; VIII, 26, 1911, (R. & H.), 



(W. '!'. Davis), 5 d", 4 9. 12 o", 7 9, 1 juv. 9. 



The material from the region about Jacksonville averages the 

 largest of any recorded above; there appears, however, to be little 

 size variation correlated with northern and southern distribution 

 in the present large series, and the specimens taken at Jacksonville 

 in November are as small as any examples we have seen. These 

 latter specimens, when compared with the largest from that locality, 

 give the following extremes of measurement: length of body, c? 

 9.9-14.3,9 12-16.3; length of ovipositor, 11.2-15.4 mm. 



The stridulation of this curious species is a very faint and inter- 

 mittent zip-zip-zee-zee-zee zip-zee-zee, etc. The males when stridu- 

 lating often climb high up in the undergrowth; we have frequently 

 found them three or four feet from the ground. 



Throughout the low country of the Carolinas, Georgia and Florida, 

 this is one of the most ubiquitous species in the undergrowth of the 

 pine woods and also on palmetto flats. At a number of localities the 

 insects were found particularly numerous about oak shoots in such 

 situations. In the high country of Georgia the species was found 

 scarce in level woods (Dalton), everywhere abundant in luxuriant 

 mountain vegetation of grasses, vines and oak sprouts under a forest 

 predominantly black-jack oak (Currahee Mountain), in a patch of 

 mint in a bunch-grass area under pines (on Stone Mountain) and 

 among oak shoots in undergrowth of mixed forest (Toccoa, vicinity 

 of Stone Mountain. Warm Springs). 



ATLANTIC-ITS Scudder. 



The species of this genus have recently been studied by the 

 authors. 123 A full treatment of the material from the region under 

 consideration is there presented. We here give the localities of the 

 material before us belonging to the eight species found in the area 

 at present treated. 



Atlanticus testaceus (Scudder). 



A. pachymerus of most authors. 



Plummer's Island, Cabin John Run and Glen Echo, Maryland; 

 Washington, D. C; Arlington, Virginia. 



123 Trans. Am. Ent. Soc, XLII, pp. 33-100, (1916). 



