96 HOMOPTERA 



horns. They are all large, robust insects with powerful upstanding suprahumerals and strongly 

 elevated pronotums. Head obtusely triangular, smooth; base strongly arcuate and sinuate; eyes 

 ovate; ocelli large, prominent, much nearer to each other than to the eyes and situated well below a 

 Hne drawn through centers of eyes ; inferior margins of genae straight; clypeus extending for half its 

 length below the inferior margins of the genae. Pronotum heavy, robust, elevated; metopidium convex, 

 broader than high; median carina faintly percurrent; humeral angles weak and rounded; suprahumeral 

 horns long, strong, usually curved, sharp, and extending almost directly upward; dorsum arcuate, 

 highest in center; posterior process heavy, tectiform, tricarinate, sharp, extending just about to the 

 tips of the tegmina; scutellum entirely concealed. Tegmina broad, subhyaline, sometimes very 

 slightly covered at the posterior ends by the overhanging sides of the pronotum but mostly free ; five apical 

 and two discoidal cells ; apical Hmbus broad. Legs simple; hind tarsi shghtly longer than the others. 



Type punctata Fabricius. 



Geographical distribution : This genus has been recorded only from Brazil and we have never 

 seen a specimen in any museum from any other country. Eight species have been described as follows : 



1. apicalis Walker, List Hom. B. M.572 (i85i). Brazil. 



2. braziliensis Fabricius, Syst. Ent. 676. 7 (1775). Brazil. 



3. compressicomis Fairmaire, Rev. Memb. 3i3. 3 (1846). Brazil. 



truncalicornis Walker, Ins. Saund. 73 (i858). 

 spatulosa Buckton, Mon. Memb. i37 (1903). 



4. crux Linnaeus, Syst. Nat. I : 435. 9 (1758). Brazil. 



5. gigas da Fonseca, Rev. Ent. V : 4. 425 (igSS). Brazil. 



6. lata Walker, List Hom. B. M. 571. 18 (i85i). Brazil. 



7. marginata F-abricius, Ent. Syst. IV : 12. 17 (i775). — Pl, 5, fig. 53. Brazil. 



sinepsis Linnaeus, Syst. Nat. II : 2095. 71 (1788) 

 maculala Olivier, Enc. Meth. VII : 668. 5 (1792) 



8. punctata Fabricius, Ent. Syst IV : i3. 21 (1775). Brazil. 



scutelligera Lesson, III. Zool. Pl. 55. 2 (i83i). 

 cervus Germar, Rev. Silb. III : 247. 5 (i835). 



63. GENUS SUNDARION KIRKALDY 



Sundarion Kirkaldy, Ent. XXXVII : 279 (1904). 

 Pyranthe (preoccupied) StSl, Bid. Hem. Syst. 558 (1867). 



Characters : Medium sized insects with free tegmina, horizontal suprahumerals, and long, 

 slender, posterior processes. Head subquadrangular, broader than high; base arcuate and strongly 

 sinuate; eyes globular and protruding; ocelli large, much nearer to each other than to the eyes; inferior 

 margins of genae straight and sloping; clypeus extending for half its length below inferior margins of 

 genae. Pronotum convex, elevated, highest point just behind the suprahumerals; metopidium convex; 

 median carina percurrent; humeral angles blunt, tiiangular; suprahumeral horns long, strong, tricarin- 

 ate, sharp, extending almost directly outward; posterior process gradually acuminate, tectiform, tricar- 

 inate, tip sharp and extending to a point about half way between internal angles and apices of tegmina ; 

 scutellum entirely concealed. Tegmina free, hyaline, broad, veins prominent; five apical and two 

 discoidal cells; tip rounJed; apical limbus broad, Legs simple; all tarsi about equal in length. 



Type Jlava Fairmaire. 



