LIST OF HOMOPTEBOnS INSECTS. 607 



retuse in the middle, slightly concave on each side; faccbroad, with 

 two indistinct parallel ridges ; hind part broad, less than half the 

 length of the head : fore-chest piinclured, veiy deep in front, rising 

 vertically from the head, very slightly ridged ; shoulders angular, 

 hardly prominent, with a very broad yellow band between them : 

 horns above long, acule, prismatic, roughly punctured, united at 

 the base, yellow lieneath, bordered with yellow above, vertical for 

 a short space, ihen curved and diverging outward ; sides lanceolate; 

 upper side rather broader than cither of the lower sides which are 

 slightly concave ; the angle between the two latter is prolonged on 

 each side into a ridge which extends to the hind border of the fore- 

 chest ; hind horn stout, roughly punctured, almost vertical but 

 slightly inclined backward for a short space from the base, then 

 forming a conical protuberance in front and extending nearly at a 

 right angle backwards beyond the tip of the abdomen ; hind part 

 slender, tapering, triangular, very undulating, yellow along the 

 middle third of its length, black towards the tip which is very acute: 

 scutellum long, oblanceolate: legs yellow; hinder shanks beset with 

 very minute black spines : fore-wings dark brown, rather paler to- 

 wards their tips, with a pitchy spot on each hind angle ; stigma and 

 veins [pitchy ; two discoidal areolcls : hind-wings colourless ; veins 

 tawny. Length of the body 2^ lines; of the wings 6 Hnes. 



a. W. Africa. Presented by B. Frend, Esq. 



20. Centrotus latipennis, Fem. 



Ferruf/ineus ; caput et prothorax jnceo varia ; prothorax antice 

 jiavo itiitalits, postice flavo fascialus ,• alee anticte luridte. 



Connects Centrotus with Oxyrachis, allied also to Lycoderes. 

 Ferruginous: head and fore-chest punctured, partly pitchy: head 

 triangular, notched on each side in front, very little narrower than 

 the fore-chest ; face conical, not half the length of the head : fore- 

 chest very deep and with a slender yellow middle stripe in front, 

 rising vertically from the head, hardly ridged ; shoulders angular, 

 not prominent ; horns above of moderate length, acute, prismatic, 

 roughly punctured, slightly curved outward, diverging from a com- 

 mon vertical base ; sides lanceolate; upper side a little hroaderlhan 

 the lower sides ; hind horn deep, narrow, triangular, ridged above, 

 proceeding from between the union of the fore horns, convex or 

 curved downward for a space from its base, thence horizontal to its 

 lip which does not extend to the tip of the abdomen ; a broad yel- 

 low band near its base : shanks slightly widened: fore-wings lurid, 

 broad, punctured for one-third of the length from the base ; tips 



