FAM. MEMBRACID^ 



129 



sions of the dorsum. Head siibquadrate, much broader than long, smooth; base weakly and regu- 

 larly arcuate; eyes globular and protruding; ocelli large, prominent, equidistant from each other and 

 from the eyes and situated about on a line drawn through centers of eyes; inferior margins of genae 

 lounded; clypeus extending for two-thirds its length below inferior margins of gense. Pronotum irreg- 

 ularly convex and very bulbous; suprahumeral horns very short, swoUen and blunt ; a large median 

 dorsal swelHng just behind suprahumerals ; sides of pronotum strongly impressed above lateral margins ; 

 posterior process consisting of a large, trilobed swelling, each bulbous lobe of the swelling ending in 

 a sharp spine. Tegmina hyaline and entirely exposed; cells irregular in shape; five apical and three 

 discoidal cells ; apical hmbus broad. Hind wings with four apical cells. Legs simple ; hind tarsi much 

 longer than the others. 



Type variegata Plummer. 



Geographical distribution : Known only from the type species from Mexico. 

 I. variegata Plummer, Memb. Mex. 378 (igSS). — Pl. 7, fig. 84. Mexico. 



99. Genus CYPHONIA Laporte 



Cyphonia Laporte, Ann, Ent. Soc. France I : 229 (i832). 



Characters : A genus of very remarkable and bizarre insects characterized by the long slender 

 suprahumerals, the trispinose and often bulbous posterior process and particularly by two slender upright 

 spines at the base of the posterior process. The insects are not large but are often brightly colored. 

 Head triangular, roughly sculptured; base straight; eyes globular and protruding; ocelli conspicuous, 

 equidistant from each other and from the eyes and situated about on a line drawn through centers of 

 eyes; inferior margins of gense rounded; clypeus extending for at least half its length below inferior 

 margins of genae. Pronotum nodulate and spinose; suprahumeral horns slender and spine-like; anter- 

 ior portion of pronotum convex; sides of pionotum deeply impressed above lateral margins; metopid- 

 ium convex, as broad as high; humeral angles weak, triangular, blunt; median carina usually obsolete; 

 posterior process always trispinose and often bulbous, the swellings generally at the base of the spines ; 

 two erect spines, side by side, at the base of the posterior process. Tegmina hyaline; cells irregular in 

 shape; five apical and two discoidal cells; apical hmbus very broad, particularly at the anal niaigin. 

 Hind wings often rudimentary. Legs simple; hind tarsi about twice as long as the others. 



Type irifida Fabricius. 



Geographical distribution : Widely distributed throughout South America, Central America 

 and Mexico but not reported north of Mexico. 



1. ancoralis Berg, Ann. Soc. Cien. Arg. XVI : 285 (i883). Argentina, Brazil. 



2. bonarensis Berg, .Ann. Soc. Cien. Arg. XVI : 240 (i883). Argentina. 



3. braccata Germar, Rev. Silb. III : 2^4. i (i835). Brazil, Colombia. 



4. capra Burmeister, Rev. Silb. I : 23i. 22 (i833j. Brazil, Colombia, Venczuela. 



5. clavala Fabricius, Mant. Ins. II : 264. 17 (1878). Biazil, Siirinam, Panama, Ni- 



bulbifera Gerraar, Mae'. Ent. IV : 3o. 40 dSail r^ l 1 ■n i ■ 



,. ., ,, . *' . jv. ^'j \ioii.). caragua, (juatemala, Alexi- 



hispida Walker, List Hom. B. M. Suppl. i56 (i858). 



co, British Guiana. 



6. clavigera Fabricius, Syst. Rhyng. II : 17. 5 (i8o3). Brazil, Uruguay, Patagonia, 



coUnophom Berg, Ann. Soc. Cien. Arg. 239 (i883). Ch\\& Art^entina. 



J. fasctata Butler, Cist. Ent. II : 214 i5 (1878). Brazil. 



