140 PROCEEDINGS OF THE ACADEMY OF [Jan.,. 



half that of the caudal margin of the same; lateral margins of the 

 disk regularly diverging cephalad and caudad; transverse sulcus with 

 an impressed subobomegoid figure; lateral margins of the disk with 

 a more or less distinct angle everywhere except mesad; cephalic 

 and caudal margins of the disk arcuato-truncate; lateral lobes of the 

 pronotum with the ventral margin distinctly sinuate and the caudal 

 margin less oblique. Tegmina not longer than the pronotal disk, 

 general form as in orececa, but with the sutural margin rotundato- 

 rectangulate at the apex of the stridulating vein; marginal field 

 narrow, discoidal field regularly expanding for nearly its whole 

 length, anal field with its greatest width about two-thirds of its 

 length, stridulating vein arcuate, slightly bent near the proximal 

 third, tympanum poorly defined, but with the general form much as 



Fig. 42. — Dichopetala catinata n. sp. Lateral view of type. (X 2.) 



in oreoeca. Disto-dorsal abdominal segment with the distal margin 

 slightly emarginato-truncate, subrectangulate laterad of the same 

 and deeply and sharply arcuato-emarginate at the bases of the cerci; 

 supra-anal plate quadrate with rectangulate angles; cerci in general 

 much as in oreoeca, but the lobe is larger, the margins subparallel, and 

 the apex arcuato-truncate, while but a trace of the ventral cingulum 

 is present; subgenital plate ample, produced, arcuate in transverse 

 section, lateral margins concavely emarginate, distal margin arcuate 

 V-emarginate, lateral angles moderately acute, diverging, ventral 

 surface with a low median carina distad. Cephalic femora about 

 one and two-thirds times as long as the head and pronotum together. 

 Median femora slightly longer than the cephalic femora. Caudal 

 femora about twice the length of the median femora. 



Allotype: 9 ; Brownsville, Cameron Co., Texas. August 1, 1912. 

 (Rehn and Hebard.) [Hebard Collection.] 



Description of Allotype. — The following characters are those of 

 difference from the female of oreoeca. Pronotum with the disk broad 

 mesad, at least three-fourths the caudal width of the same; cephalic 



