FAM. MEMBRACID.E 127 



margins of genae lounded; clypeus extending for moie than half its length below inferior niargins of 

 genae. Pronotum low, convex, dorsum straight or slightly sinuate; suprahumeral horns variable in 

 length but always present and usually conical and sharp; humeral angles weak and blunt; metopidium 

 vertical or convex, about as broad as high ; median carina percurrent; sides of pronotum deeply impress- 

 ed in semicircular indentations above the lateral margins behind the suprahumerals; posterior apex of 

 pronotum gradually acuminate and generally extending to a point somewhere between the internal angles 

 and the tips of the tegmina. Tegmina entirely free, corium fully exposed ; venation heavy and conspic- 

 uous; five apical and three discoidal cells; apical limbus broad. Legs simple. 



Type ciliata Fairmaire. 



Geographical distribution : Species of this genus have been recorded only from Central and 

 South America as follows : 



1. centrotoides 'Wa\ke,r, List Hom. B. M. Suppl. i38 (i858). Brazil, Ecuador. 



2. ciliata Fairmaire, Rev. Memb. 287. 17 (1846). — Pl. 7, fig. 82. Colombia, Venezuela. 



3. elegatis Fowler, B. C. A. II : 107. i (1894). • Panama. Brazil. 



4. flavolimbata Goding, Memb. Ecuad. 32. 35 (1920). Ecuador. 



5. luiea Funkhouser, Journ. N. Y. Ent. Soc. XXVII : 4. 269 (1919). Colombia. 



6. nasuta Stal, Eug. Res. Omk. Hem. 283(1859). Brazil. 



7. pinguicornis Funkhou.ser, Journ. N. Y. Ent. Soc. XXVII : 270 (1919). Peru, Ecuador. 



8. speciosa Goding, Amer. Mus. Novit. 18 (ig^o). Brazil. 



9. unguicularis Stal, Rio Jan. Hem. 26. 3 (i858). Brazil. 



96. Genus ANTON^ STAL 



Antonae Stal, Bid. Hem. Syst. 552 (1867). 

 Tumayana Schmidt, Stet. Ent. Zeit. LXVII : 368 (1906). 



Characters : A genus characterized by the heavy, rounded, bulbous sv\ ellings at the base of 

 the posterior process and the very slender spine-like apex to this process. Head subquadrangular 

 broader than high, roughly sculptured; base strongly arcuate and vveakl}- sinuate ; eyes globular and 

 protruding; ocelli large, prominent, equidistant from each otlier and from the eyes and situated a little 

 below a line drawn through centers of eyes ; inferior margins of genas rounded; clypeus projecting for 

 at least Iialf its length below inferior margins of gense. Pronotum convex, not highly elevated nor later- 

 ally compressed; suprahumeral horns varying in size and length but always well developed ; humeial 

 angles weak and rounded; metopidium vertical, usually a little higher than broad; median carina per- 

 current ; sides of pronotum deeply impressed above lateral margins behind the horns; dorsum sinuate; 

 base of posterior process swollen into bulbous nodes ; apex of posterior process long, slender, sharp, and 

 extending beyond the internal angles of the tegmina but not reaching their tips. Tegmina entirely free, 

 corium fully exposed ; veins strong and heavy; cells large; five apical and three discoidal cells; apical 

 limbusbroad especially on the anal margin. Legs simple; hind tarsi inuch the longest. 



Type tigrina Fairmaire. 



Geographical distribution : A genus represented by only a moderate number of species but 

 with enormous numbers of individuals in South America, Central America and Mexico. 



I. aurantiaca Fairmaire, Rev. Memb. 288 (1846). Colombia. 



