oOb LIST OF HOMOPTEROUS INSECTS. 



obliquely, prismatic, broad, much compressed, curved backw-ards; 

 inner side as broad as the outer side and about twice the breadth of 

 the hind side ; on the inner edge of the hind side near the tip of 

 the triannjle there is a short branch or tooth ; hinder horn of the 

 fore-chest much compressed, highly arched, descending nearly to 

 the tip of the abdomen, which it equals in length, slightly widening 

 where it approaches the abdomen, and thence more horizontal ana 

 tapering to the tip : tarsi ferruginous : wings brown ; veins pitchy. 

 Length of the body 3J lines ; of the wings 7 lines. 

 a. Port Natal. From M. Gucinzius' collection. 



18. Centrotus pilosus, Mas. 



Ferruyinetis, albido-puhescens ,- prothorax nigrn varius, apicem 

 versus fulvus ; pectus et abdomen picea ; pedes futvi ; aid an- 

 licce sublimpidce, margine postico fusco maculatce. 



Ferruginous, most thickly clothed with dingy white down : head 

 and fore-chest punctured: head short, transversely subfusiform, a 

 little narrower than the fore-chest, brassy in front ; its breadth nearly 

 twice its length ; face small: fore-chest deep in front, i)artly black, 

 rising almost vertically from the head, slightly ridged ; shoulders 

 obtusely angular, somewhat prominent ; horns above rather long, 

 broad, irregularly prismatic, sligbtly diverging and inclined forward ; 

 their tips more diverging, almost trifurcate, slightly widened ; inner 

 side and outer side much broader than the hind side ; angles slightly 

 serrated ; of the three forks or angles at the tip the fore one is 

 slightly obtuse, the middle one acute, and the hind one rectangular ; 

 hind horn stout and vertical for a short space from the base, then 

 forming a right angle and extending backward much beyond the 

 tip of the abdomen ; hind part tawny, slender, tapering, very slightly 

 undulating, with a black acute tip : breast and abdomen pitchy ; 

 legs tawny; wings almost colourle-ss ; a brown spot on the hind 

 angle of each fore-wing ; veins lawny, here and there brown. Length 

 of the body 2 lines ; of the wings 4i lines. 

 a. North India. From Mr. Warwick's collection. 



19, Centrotus bipennis. 



Fcrrugineus ; prothorax Jlavo bifasciatus ; pedes flavi ; alts antica 



fuscm margine postico piceo maculatte ; alee posticat limpida. 



Ferruginous : head very short, transversely su1)fusiform, finely 



punctured, a little narrower than the fore-chest ; hind border slightly 



