LIST OF HOMOPTEROUS INSECTS. 625 



roughly punctured, moderately high in front, vising almost vertically 

 from the head, with a slight ridge ; shoulders rounded, not promi- 

 nent; horns above conical, broad, prismatic, acute, slightly diverg- 

 ing and curved outward, a little inclined forward, in length about 

 twice the breadth of the chest between them ; edge ferruginous : 

 hind side much narrower than either of the other sides which are 

 slightly ridged ; hind appendage keeled, slender, slightly curved 

 downward, tapering from the base to the lip which is very acute and 

 extends far beyond the lip of the abdomen : legs ferruginous ; thighs 

 black ; shanks very slighlly widened : wings colourless ; fore-wings 

 rather long and narrow, pitchy and punctured at the base ; veins 

 ferruginous, pitchy at the base ; two discoidal areolets. Length of 

 the body 3 lines ; of the wings 7 lines. 



62. Centrotus pallidus, Fem. 



Ferrugineus ; ales limpidce ; alee anticce basi picece. 



Ferruginous, thickly clothed with pale tawny hairs : head very 

 short, narrower than the fore-chest, transversely subfusiform, with 

 the exception of the face, which is conical, narrow, very prominent, 

 and longer than the head behind it : eyes prominent : fore-chest 

 low in front, inclined backward, with a distinct ridi^e ; shoulders 

 rounded, not prominent ; horns above diverging, very slightly as- 

 cending, prismatic, acute, slightly curved backward, in length a 

 little less than the breadth of the chest between them ; hind side a 

 little narrower than either of the other sides ; hind appendage ta- 

 pering, slender, hardly notched above the scutellum : breast thickly 

 clothed with pale yellow down : shanks slender : wings colourless ; 

 fore-wings pitchy at the base; veins ferruginous; two discoidal 

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



63. Centrotus bicolor, Fem. 



Niger, subfus flavo pubescens ; cornua ferruginea ; pedes ferrngi- 

 nei ; alee Limpida: ; ala anticce basi ferruginea. 



Black, thickly clothed beneath with pale yellow down : head 

 very short, thinly punctured, a little narrower than the fore-chest, 

 transversely subfusiform with the exception of the iace, which is 

 conical, very prominent, and much exceeds the length of the head 

 behind it: eves very prominent: fore-chest roughly punctured, 



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