52 



HOMOPTERA 



2. hastata Fabricius, Mant. Ins. II : 263. 9 (1787). 



nutans Germar, Mag. Ent. IV : 28. 3o (1818). 

 nigrovittata Walker, List Hom. B. M. 539. 14 (i85i). 



3. latipes Say, Narr. Long's Exp. App. 3o2 (1824). 



antonina Walker, List Hom. B. M. 488 (i85i). 

 venosa Walker, List Hom. B. M. 488 (iSSi). 

 frigida Walker, List Hom. B. M. Suppl. 126 (i858). 

 antona (sic) Dohrn, Cat. Hem. 76 (iSSg). 

 bimacula Dohrn. Cat. Hem. 76 (i85g). 

 rectidorsum Buckton, Mon. Memb. 49 (i9o3). 



4. minans Fairmaire, Rev. Memb. 252. 35 (1846). 



micans (sic) Stal, Hem. Mex. 57. 405 (1864). 



5. rtigosa Fowler, B. C. A. 10. 6 (1894). 



Peru, Brazil, Panama, Mexi- 

 co, Guiana. 



Canada, United States. 



Mexico, Espiritu Santo Isl. 



Mexico. 



5. genus TRITROPIDIA STAL 



Tritropidia Stal, Hem. Fabr. II : 44 (1869). 



Cliaracters : Distinguished from the other genera of the Membracini by the triangular head 

 and the short, erect frontal horn. The pronotum is moderately elevated, rather distinctiy compressed 

 and the lateral carinae are usually very faint or obsolete. The species are all small in size and are 

 mostly bright in color. 



Type galeata OUvier. 



Geographical distribution : 



1. bifenestrata Funkhouser, Journ. N. Y. Ent. Soc. XXX : i (1922). 



2. galeata Olivier, Enc. Meth. VII : 668. 6 (1792). — Pl. I , flg. 5. 



militaris Fabricius, Syst. Rhyng. i5. 39 (i8o3). 



pulcliella Funkhouser, Journ. N. Y. Ent. Soc. XXX : i (1922). 



3. nimbata Fabricius, Syst. Rhyng. i5. 40 (i8o3). 



alticervtx (nom. nud.) Stoll, Cigal. ii3 (1780). 



4. rubrocassis StoU, Cigal. 67. Pl. 17, fig. 90 (1780). 



Brazil, Guiana. 

 Surinam, Peru, Guiana. 



Surinam, Brazil. 

 Surinam, Ecuador. 



GENERA OF TRIBE NOTOCERINI TRIBUS NOV 



I. Head distinctly trilobed SpoNGOPHORUsFairmaire. 



II. Head not trilobed 



A. Venatioii normal 



1. Anterior proiiotum produced in a single porrect process or tubercle 



a. Surface of pronotum smooth Guayaquila Goding. 



aa. Pronotum bearing ridges, spines or nodules 



b. Dorsal margin smooi/t Philya Walker. 



bb. Dorsal margin spinose Hypsoprora Stal. 



2. Anterior pronotum with two suprahumerals Notocera A. & S. 



B. Venation irregiilar ; maiiy small celliiles 



1. Single porrect pronotal process Scalmorphus Fowler. 



2. Two suprahuineral horns or entirely withnut processes Multareis Goding. 



