616 LIST OF HOMOPTEEOUS INSECTS. 



prismatic, diverging obliquely upward ; tips hooked or inclined at a 

 right angle backward ; inner sides and outer sides broader than the 

 hinder sides ; outer sides slightly concave ; length of the horns equal 

 to twice the breadth of the chest between them ; hind appendage 

 keeled, extending to the tip of the abdomen, tapering and very 

 slender towards the tip which is very acute : breast covered with buff 

 down: legs rather long: fore- wings lurid, black and punctured at 

 the base, with a yellow spot on the fore border near the base ; veins 

 black, pitchy towards the tips; one discoidal areolet: hind-wings 

 paler. Length of the body 3^ lines ; of the wings 9 lines. 



(P46. Centrotus rufiventris, Fern. 



Ferrugineus ; caput nigra bimaculatum ; cornua lateralia apice 

 nigra ; cornii posticum bicristatum ; abdomen rufum ; pedes 

 nigro vittati ; alee anticce suhfulwB. 



Ferruginous, thinly clothed with shining yellow hairs: head 

 transverse, minutely punctured, narroAver than the fore-chest, sur- 

 rounded by a rim, with a black spot on each side between the eyelets 

 and the eyes; face subfusiform, prominent in front, as long as the 

 head behind it : fore-chest roughly punctured, low and inclined 

 backward in front, distinctly ridged; shouldeys rounded, not promi- 

 nent: horns above stout, conical, prismatic, diverging, slightly as- 

 cending, black towards the tips which are mutilated in the specimen 

 described ; hind appendage slender, extending to the tip of the 

 abdomen, much attenuated towards the tip which is very acute, 

 armed with two erect, high, compressed, conical, acute humps, one at 

 the base, the other in the middle: abdomen bright red, punctured, 

 blackish towards the base beneath : legs ferruginous ; thighs striped 

 with black : fore-wings pale tawny, tawny and punctured towards 

 the base ; veins tawny ; two discoidal areolets : hind-wings colour- 

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



a. Moreton Bay. From Capt. Parry's collection. 





 A7. Centrotus ignipes, Fern. 



Nigro-cyaneus ; cornua hunieralia purpureo-cyanea ; cornu posti- 

 cum Jlavo bivittatum ; pectus et abdomen rufa ; pedes Icete 

 ruji ; alee nigra. 



Dark blue, narrow: head transverse, impressed, almost smooth, 

 a little narrower than the fore-chest between the eyes; fore border 

 slightly retuse; face conical, very prominent, a little shorter than 



