1914.] NATURAL SCIENCES OF PHILADELPHIA. 125 



Alice, Nueces Co., Texas, August 28, 1908, (J. D. Mitchell; on 

 Opuntia),! 9 , [U. S. N. M.]. 



San Diego, Duval Co., Texas, April 30, (E. A. Schwarz; on 

 cotton), 2 d" nymphs, [U. S. N. M.]. 



Hebbronville, Diival Co., Texas, August 29, 1908; on Opuntia, 

 1 d', 1 9, [U. S. N. M.]. 



Cotulla, La Salle Co., Texas, May 12, 1906, (F. C. Pratt), 1 d", 

 [\J. S. N. M.]. 



Carrizo Springs, Dimmit Co., Texas, May and June, 1885, 

 (A. AVadgymar), 2 cT, 3 9 , 1 d^ nymph, [Hebard Collection]. 



Texas, 1 9 , [A. N. S. P.]. 



Dichopetala emarginata Brunner. 



1878. D[ichopetala] emarginata Brunner, Monogr. der Phaneropt., p. 77, 



[Texas.] 

 1897. Dichopetala emarginata Saussure and Pictet, Biol. Cent.-Amer., 



Orth., I, p. 3l5. [Texas.] 



This species constitutes with D. gladiator {vide supra) a section 

 •of the genus readily recognized by genital characters of both sexes. 

 These characters are emphasized in the keys, and in the foregoing 

 •description of gladiator the differential features of the two forms are 

 also given. 



Types: cf and 9 ; Texas. [Brunner Collection and Geneva 

 Museum.2«] 



Description of Male (Dallas, Texas; U. S. N. M.). — Size medium; 

 form as usual in the genus. Head with occiput moderately declivent; 

 fastigium moderately compressed, low, subcontiguous with the 

 facial fastigium; eyes moderately prominent, ovate, greatest depth 

 contained one and one-third times in the greatest depth of the infra- 

 ocular portion of the gense; antennae with proximal -joints not 

 depressed. Pronotum not sellate, dorsum subdeplanate, on cephalic 

 half slightly rounding laterad; disk with lateral margins slightly 

 indicated by angles caudad, by color for their whole length, decided 

 and regularly narrowed mesad, the median width about one-half 

 that of the caudal margin of the disk; cephalic margin of disk trun- 

 cate, caudal margin of same considerably arcuate, slightly flattened 

 mesad; transverse sulcus bisecting the lateral margins of the disk 

 mesad, on the disk forming an obomegoid figure caudad of the middle; 

 lateral lobes of the pronotum with the greatest depth contained 



-^ From the information given by Saussure and Pictet we learn that this 

 mateaial, or at least the portion of it in the Geneva Museum, was collected by 

 Boll. We have examined fourteen specimens collected by Boll at Dallas, so we 

 >consider Dallas material typical. 



