LIST OF HOMOPTEROUS INSECTS. 559 



curved backward but not angular between the shoulders, which are 

 rounded and not prominent; behind the shoulders the keel com- 

 mences ; its sides are flat ; it extends to the tip of the abdomen, 

 and is slightly concave beneath and attenuated towards the lip which 

 is acute ; a curved furrow on each side, its ends joining the border: 

 a broad black stripe on each thigh : wings colourless ; veins pale 

 yellow; four or five discoidal areolets; apical areolets numerous. 

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



fl, b. St. John's Bluff, E. Florida. Presented by E. Doubleday, Esq. 



0\2. Thelia rufivitta, Mas. 



Testacea ; prothoracis carina rufo hivittata ; ventris discus niger ; 

 alee livipidcB. 



Testaceous : head and fore-chest thickly punctured : head trans- 

 verse, nearly as broad as the fore-chest, with a slight rim, rather 

 convex behind, very convex in front, with an indistinct suture which 

 is forked in front and extends along each side of the small face ; its 

 breadth almost twice its length: eyes prominent: fore-chest indis- 

 tinctly ridged, rising some height above the head and then curved 

 backward but not angular between the shoulders which are rounded 

 and not prominent ; behind the shoulders the keel commences ; its 

 sides are flat ; it extends to the tip of the abdomen, has a red stripe 

 on each side converging from the shoulder to the tip, is slightly con- 

 cave beneath and attenuated towards the tip which is acute ; curved 

 furrow on each side larger than that of T. suhstriata : disk of the 

 under side of the abdomen black: wings colourless; veins pale 

 yellow. Length of the body 2 lines ; of the wings 6 lines. 



a. St. John's Blufl", E. Florida. Presented by E. Doubleday, Esq. 



:"l3. Thelia lutea, Mas et Fem. 



JLutea ; prothorax apice niger ; pectus nigrum ; femora supra nigra ; 

 ales limpidcB ; alee anticte basi fulvce. 



Luteous shining : head punctured, transverse, almost triangular, 

 nearly as broad as the fore-chest; hind border very slightly undu- 

 lating; fore sides pale yellow, very slightly convex; a slight middle 

 furrow joins the suture on each side of the face whose bind angle 

 occupies half the length of the head, and is enclosed on each side: 

 eyes prominent: fore-chest convex, roughly punctured, forming a 

 keel behind the shoulders, which are rounded and not prominent ; 

 keel very slightly concave on each side where there is a slight semi- 



