LIST OF HOMOPTEROUS INSECTS. 143 



Hemiptycha DIFFUSA. O 



Valida, obscure testacea ; caput breve, latum ; prothorax rude punc- 

 tatus, sabcarinatus, fascia antica lata interrupta ferruginea 

 nigro marginata, supra gibbosus compressus, laieribus nigro et 

 piceo notatis, apice acuto ; cornua lateralia plana, brevissima ; 

 femora nigro vittata; ala subcinerece, anticce basi testacea et 

 punctata, macula apicali fusca. 



Dull testaceous, stout. Head short, broad. Prothorax roughly 

 punctured, slightly keeled, with a broad interrupted black-bordered 

 ferruginous band on the fore part, which is convex, and has 

 an extremely short horizontal horn on each side ; keel mostly 

 black ; hind part forming for full one-third of the length from its 

 base a high compressed obliquely truncated protuberance, whose 

 ridge is slightly excavated hindward ; sides with irregular black and 

 piceous marks : tip acute, extending some distance beyond the ab- 

 domen. Femora striped with black. Wings grayish. Fore wings 

 testaceous and punctured at the base, with a brown apical spot. 

 Length of the body 4 lines ; of the wings 8 lines. 



a. Orilla, West'Canada. From Mr. Bush's collection. 



Hemiptycha nigeo-eufa.O 



Testacea, vix robusta ; caput sirigis transversis nigris ; prothorax 

 rufescens, rude punctatus, subcarinatus, apice acutus, abdomi- 

 nis apicem non attingens ; cornua lateralia brevissima, ob- 

 liquo plana, supra nigra ; cornu dorsale erectum, convexum, 

 valde compresswn ; femora nigro strigata ; alee fuscescentes ; 

 antica basi rufo nigroque varice. 



Testaceous, hardly stout. Head with transverse black streaks. 

 Prothorax reddish, roughly punctured, slightly keeled, convex 

 in front, not high ; lateral horns very short, directly diverging, 

 obliquely horizontal, mostly black above ; dorsal horn a little 

 behind the shoulders, erect, much compressed, rounded at the 

 tip ; hind part acute, not extending to the tip of the abdomen. 

 Legs streaked with black. Wings brownish ; veins black, strongly 

 marked. Fore wings black and red at the base. Length of the 

 body 3j lines ; of the wings 8 lines. 



a. Mexico. From Mr. Glennie's collection. 



