1916.] NATURAL SCIENCES OF PHILADELPHIA. 251 



tion of the mainland of Florida. Its westward distribution does not 

 extend as far inland as the fall line, hut south of this harrier in ( reorgia 

 and the Gulf States and along the Gulf coast it is found west of the 

 area treated in the present paper and has been taken in the Mississippi 

 valley region within half a mile of the shores of Lake Michigan. 

 Paroxya clavuliger (Serville). 



Paroxya florididna of Thomas ami authors. 



Washington, I). ('., XI II, 1883, 2 <?, Warm Springs, VII, 18, 1913, (J. C. 

 1 9, [Hebard Cln.]. Bradley), I tf. 



Virginia. T - v, '*; < ' Island > IX > 2 > 1911 > (H ->> 5 <?» 



Petersburg, VII, 22, 1913, (R. & H.), Jesup - IX x 1911 (R . & H) l & 



1 juv cf, 1 juv. 9. g |UV-9 . 



Newport News IX 16, 1907, (B. Hebardville, V, 15, 1915, (H.), 1 small 

 1 -""- • 19,[A.N.S.P.]. juv . cfj 2 small juv. 9. 



North Carolina. Mixon's Hammock, V, 16, 1915, (H.), 



Fayetteville, IX, 9, 1911, (R. & H.), u -l small juv. £. 



3 i 29 Billy's Island, VI, 1912, (J. C. Brad- 



Wrightsville, IX, 7, 1911, (R. & H.), ley) - 19> „, ., 



._> r ;} q Florida. 



Georgia _ Jacksonville, IX, 1913, (W. T. Davis), 



Buckhead, VIII, 2, 1913, (R. <fc H.), Atlantic" Beach, VIII, 24, 1911, (R. & 



2 c?, 2 juv. 9. H.), 2 c?, 89. 



Augusta, VII, 29, 1913, (R, & H.), Pablo Beach, IX, 27, 1913, (W. T. 

 1 juv. 9. Davis), 1 9. 



It is much to be regretted that Serville's description and figures 

 of Acridium claniliger 107 have so long been overlooked. There is 

 not the least doubt that the present insect is the species which he 

 described, and Thomas' Caloptenus floridianus, described in 1874, 108 

 has consequently been placed in the synonymy here. 



Blatchley did not compare his P. hoosieri with the present species, 

 to which it is very closely related. P. clavuliger differs in having the 

 furcula less heavy and usually more widely separated, and the sub- 

 genital plate with the lateral portions of the caudal margin decidedly 

 less elevated; still other differential characters appear to exist. 



The material here recorded fully bears out the authors' previous 

 assertion that the present species shows a marked increase in size 

 southward in its distribution. 109 The distribution of the species is, 

 to a certain degree, discontinuous, as it is scarcely ever met with 

 except in boggy, swampy or marshy surroundings; it is particularly 

 partial to such locations when situated in the open or along the 

 borders of woods. 



Hist. Nat. Ins., ( >rth., p. 676, pi. XIV, figs, lla-b, (1839). [North America.] 

 108 Bull. (J. S. Geol. and Geogr. Surv. Terr., I. p. (is, (1874). [Florida.] 

 10j Pkoc. Acad. Xat. Sci. Piiji.a., 1907, p. 298, (1907). 



