474 , Materials for a Monograph 



Length of body, l.Oo in. ; s}3read of wings, 1.75 in. ; 

 defjth, .46 in. 1 9. 



Texas, (Mus. Comp. Zool.) 



TETTIX, LATREILLE (emend.) 



See Tettig'idea and Batrachidea. 



* 1. T. (iRANULATA. 



Acrydiuni g-ramdatum, Kirby, Favin. Bor. Am. Ins. ; 251. 



(1837.) 



Tetrix ornato, Harr., Cat. Ins. Mass. ; 57. (1835.) 



» " Harr., Report, 3d ed.; 186. (1862.) 



(Not Acrydium or nation, Say.) 



This species may be distinguished from T. ornata, by 

 its longer pronotum and greater size, and also by the 

 prominence of the vertex, which advances considerably 

 in front of the eyes, having the front border angulated ; in 

 this latter feature it may also be similarly' distinguished 

 from T. cucullata and T. rug-osa, as also by its narrower 

 pronotum ; the males are much narrower than the females. 



Mass., (H. Coll., Sanborn, Shurtlert", S. H. S.) Maine, 

 (Packard.) N. Hampshire, (H. Coll.) Minnesota, (S. 

 H. S.) 



* 2. T. ORNATA. 



Acrydium ornatum, Say, Amer. Entom. ; I. PI. V. (1824.) 

 " « Say, Ent. of N. Am. (ed. LeConte) ; 



I. 10. PI. V. fig. 1. (1859.) 



Tetrix arenosa, Burm., Handb. d. Ent. ; II. 659. (1838.) 

 dorsalis, Harr., Report, 3d ed. ; 186. (1862.) 



" quadrimacidata, Harr., Report, 3d ed.; 186. (1862.) 

 " bilineata, Harr., Report, 3d ed. ; 186. (1862.) 



. '• sordida, Harr., Cat. Ins. Mass. ; 57. (1835.) 



« « Harr., Report, 3d ed. ; 1S7. (1862.) 



(Not Tetrix ornata, Harr., Cat. and Report.) 

 This species is smaller tiian T. g-ranulatum, has the ver- 

 tex but little thrust forward in advance of the eyes, and 



