FAM. MEMBRACIDiE j2i 



7. ptrftda Walker, List Hom. B. M. Suppl. i39(i858). Ecuador, Venezuela. 



8. sohria VValker, List Hom. B. M. 523. i3 (i85i). — Pl. 6, fig. 77. Ecuador, Brazil. 



9. sobrina Stal, Rio Jan. Hem. \\ : 28. i (1862). Brazil, Ecuador. 



90. GENUS GELASTOGONIA KlRKALDY 



Gelastogonia (nom. nov.) Kirkaldy, Ent. XXXVII : 279 (1904). 

 Oxygonla (preoccupied) Fairmaire, Rev. Memb. 3oi (1846). 

 Ennya Stal, Ber. Ent. Zeit X : 387 (1866). 



Characters : Medium to large sized iiisects often brightlj' colored and distinguished from those 

 belonging to closely related genera by the convex or step-shaped posterior margin of the dorsal process. 

 Head triangular; base strongly sinuate; eyes large, ovate; ocelU prominent, equidistant from each other 

 and from the e^-es and situated about on a Une drawn through centers of eyes; inferior margins of genai' 

 sinuate; cl3'peus extending for more than h;ilf its length below inferior margins of gena; and continuing 

 the line of these margins to form the triangular outline of the face. Pronotum elevated, tectiform, and 

 bearing a dorsal crest which arises from behind the humeral angles and while varying in shape and 

 stiucture usually consists of a sharp point in front and always shows either a convex protuberance or a 

 step-like posterior margin, or both, behind. Metopidium convex, wider than high ; humeral angles 

 strongly produced into broad, flattened, triangular, blunt processes ; median carina stiongly peicurrent; 

 posterior apex of pronotum gradually acuminate and reaching just about to the tips of the tegmina; sides 

 of pronotum bearing strong, heavy, longitudinal lidges. Tegmina about half exposed ; basal costal area 

 strongly punctate and coriaceous; apical half hyaline or colored but not coriaceous ; five apical cells ; one 

 discoidal cell; median apical cell triangular and stylate; apical limbus moderate. Legs simple, subcy- 

 lindrical ; hind tarsi somewhat longer than the others. 



Type rufipes Fairmaire. 



Geographical distribution : .A Central and South American genus, widely distributed, and, 

 so far as individuals of some of the species are concerned, veiy abundant in inany localities. 



[. chlorizans Breddin, Soc. Ent. XVI : 23. 177 (1902). Ecuador. 



2. chrysura Fairmaire, Rev. Memb. 3o3. 2(1846). — Pl. 6, fig. 78. Colombia, Venezuela, Ecua- 



auriflua Walker, List Hom. B. M. 55o. 2 (i85i). dor, Panaina. 



3. irythrol>us Burmeister, Handb. Ent. II : i^g. 2 (i835). Biazil, Ecuador. 



alroapleia Fairmaire, Rev. Memb. 304. 10 (1846). 

 insolila Walker, Ins. Saund. 109(1858). 

 costigera Butler, Cist. Ent. II : 353 {1878). 



4. exaltata Walker, List Hom. B. M. Suppl. 140(1858). Biazil. 



palruelis Stal, Rio Jan. Hem. II : 29 3 (1862I. 



5. fairmairti Breddin, Soc. Ent. XVI : 23. 177 (1902). Ecuador. 

 6 fasciata Fallou, Rev. Ent. IX : 353 (1890). Ecuador. 

 7. funkhouseri Goding, BuU. Brook. Ent. Soc. XXIII : i38 (1928). Ecuador. 

 8 gihbera Goding, Amer. Mus. Novit. 20 (ig^o). Ecuador. 

 9. gourndli Fallou. Rev. Ent. IX : 353 (1890). Brazil. 



10. hirsuta Haviland, Zoologica VI : 3. 256 (iga^). British Guiana. 



11. lineosa Walker, Journ. Ent. I : 5. 3i8 (1862). South America. 



12. nehnlusa Breddin, Soc. Ent. XVI : 23. 177 (1902). Ecuador. 



