1913.] NATURAL SCIENCES OF PHILADELPHIA. 467 



there are consequently often hundreds of square miles utterly unfit 

 for the insect, since it is only found where some dampness is derived 

 from a river or stream, a lake, or some subterranean water supply. 

 There is little variation in any of the specimens from the heavier 

 portion of the Texan mesquite belt where its range is not 

 discontinuous. 



Synonymy. — When the present geographic race was described in 

 1896, Scudder wrongly believed a series of specimens of this insect 

 from the state of Vera Cruz, Mex., to belong to the poorly described 

 N. mexicanus of Walker, and he also failed to recognize as such pale 

 specimens of the same from Texas and Lower California which he 

 determined as N. carolinus and A^. neomexicanus (both belonging 

 to the subgenus Eunemobius, which has the disto-ventral spurs of 

 the caudal tibiae equal and the apex of the ovipositor an.ied above 

 and below). 



In 1897, Saussure, supposing Scudder to be correct in his statements, 

 followed him in quoting the records of what Scudder supposed to be 

 mexicanus, but without seeing the material, and so a single specimen 

 of the pale color form of cuhensis mormonius in his possession from 

 Durango or Sinaloa, Mex., was to him apparently new and so de- 

 scribed as A'', comanchus. In the same paper Saussure considered 

 specimens from Tabasco, Mex., to be N. cubensis. 



Hart recorded this insect as N. mexicanus in 1906. 



Specimens Examined. — 1.31: 66 males, 61 females, and 4 nymphs. 



BUoxi, Mississippi, March 11, (F. M. Jones) 1 cT [A. N. S. P.]. b. 



Texas, (Belfrage) 2 cT [Scudder Collection]. 1 m. 



College Station, Tex., Dec. 23, 1905, (Hart) 1 & [111. State Lab. Nat. Hist.], b. 



Beaumont, Tex., July 23, 1912, (H.) 9 d^, 6 ? , 1 n. 1 cf , 2 9 , m. 



Webster, Tex., July 19, 1912, (H.) Id', b. 



Dickinson, Tex., July 20, 1912, (H.) 7 d', 4 9 . b. 



Galveston, Tex., July 19-21, 1912, (H.) 7 d^, 6 9 , 1 n. 19 m. 



Rosenberg, Tex., July 25, 26, 1912, (H.) 1 9 . b. 



Columbus, Tex., Dec. 15, 1878, (Schwartz) 2 d', 2 9 [U. S. N. M.]. Under 

 old leaves near Brazos River. Sm. b. 



Kerrville, Tex., Aug. 17, 18, 1912, (R. and H.) 1 d'. b 



Victoria, Tex., Aug. 8, 1902, (W. E. Hinds) 1 9 [U. S. N. M.]. Lg. m. 



Brownsville, Tex., June, (Snow) 2 9 [A. N. S. P.]. m.; May 1, 4, 1904, 

 (Barber) 3 9 [U. S. N. M.]. sm. m.; July 31-Aug. 5, 1912, (R. and H.) 7 cf , 

 6 9 , 1 n. 2 9m.; June 23, 1908, Nov. 21, 24, Dec. 19, 1910 (Hart) 3 d', 7 9 . 

 1 n. [111. State Lab. Nat. Hist.]. 1 d', 3 9 m. 

 .Piper Plantation, Brownsville, Tex., Aug. 3, 1912, (R. and H.) 1 d", 2 9 . 

 9 9 m. 



Esperanza Plantation, Brownsville, Tex., May 3, 1903, (Schaeffer) 1 9 [Bklyn. 

 Inst. A. and S.]. b. 



Uvalde, Tex., Aug. 21, 22, 1912. (R. and H.) 5 d', 4 9 . b. 



Del Rio, Tex., Aug. 22, 23, 1912, (R. and H.) 2 cf , 1 9 . m. 



St. George, Utah, April, (Palmer) 2 9 , 1 n. Type and Paratypes [Scudder 

 and Hebard Collection ex Bruner]. Dk. b. 



