1914.] NATURAL SCIENCES OF PHILADELPHIA. 95 



sexes ranging from olive ochre to lime green, the proximal joints 

 more or less speckled with maroon. Tibial spines tipped with 

 black. Ovipositor of the general color tone and usually of the dorsal 

 shade, finely stippled with garnet brown and dorsal margin more or 

 less washed with same. 



Distribution. — The present species is known only from three locali- 

 ties in the arid tropical Tamaulipan region of southern Texas, 

 Bro\vnsville, Piper Plantation (along the Rio Grande about ten 

 miles southeast by east of Brownsville), and Lyford (in the same 

 county about forty-seven miles north of Brownsville). It doubtless 

 ranges over an adjacent section of Mexico. 



Biological Notes. — At BrowTisville and Piper Plantation the 

 present species was scarce and local, occurring in tangles of Clematis 

 (probably C. reticulata) growing over the ground and on low mesquite 

 and huisache. Individuals, when disturbed, endeavored to hop, 

 crawl, or drop into recesses of these vines, where they are so well 

 protected by their coloration that beating was the best method of 

 securing them. At Lyford the single specimen was taken with 

 D. gladiator in a weedy field wiiich had a low cover of sand spur 

 {Cenchrus sp.) and grasses. This species was found to be by far the 

 least active of any of the forms of the genus taken by the authors. 



Morphological Notes. — In the female sex the interspace between 

 the tegmina varies from one extreme, in wliich the sutural margins 

 are touching, to one in which the space separating them is nearly 

 half of the width of a single tegmen. 



Remarks. — The possibility of confounding this very peculiar species 

 with any other form of the genus is very remote. It is interesting 

 that in a region which has been examined as often as the Brownsville 

 section, as striking a species as this should have been overlooked, for 

 which the character of its habitat is probably responsible. 



Specimens Examined. — -43; 17 males, 9 females, 17 nymphs. 



Brownsville, Cameron County, Tex.; July 31-August 5, 1912; 

 (H.); 16 cT, 9 9 (Type, allotype, paratypes), 6 cf nymphs, 9 9 

 nymphs. 



Piper Plantation, near Brownsville, Cameron County, Tex.; 

 August 3, 1912; (R. & H.); 2 9 nymphs. 



Lyford, Cameron County, Tex. ; August 6-7, 1912 ; (R. & H.) ; 1 cf - 



Dichopetala castanea n. sp. 



1912. Dichopetala brerihaslata Hunter, Pratt and Mitchell (not of Morse), 

 Bull., 113, Bureau of Entom., U. S. Dept. of Agr., p. 50. (Part) [Corpus 

 Christi and Maverick County, Texas.] 



This species differs from its nearest ally — D. hrevihastata Morse — in 



