LIST OF HOMOPTEROrS INSECTS. 607 



retuse in the middle, slijjhlly concave on each side; face broad, vviih 

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

 lenp:th of the head : fore-chest punctured, very 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, acute, prismatic, rouohly punctured, united at 

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

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

 upper side rather broader than either 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 areolets : hind-wings colourless ; veins 

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



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



J20. Centrotus latipennis, Fem. 



Ferriif/ineiis ; caput et profhorax piceo varia ; prothorax antice 

 jiavo vitlatus, postice flavo fasciatus ; alee anticce luridce. 



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 lenjjth, acute, prismatic, 

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

 mon vertical base ; sides lanceolate; upper side a little l)roaderlhan 

 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 

 tip 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 



