FAM. MEMBRACID^ 



69 



i5. rubripes Funkhouser, Journ. N. Y. Ent. Soc. XXX : i. lo (1922). 



16. semitecta Walker, List Hom. B. M. Suppl. 129(1858). 



17. signoreti Fowler, B. C. A. Sg. 2(1894). 



18. sordida Germar, Mag. Ent. IV : 17 (1821). 



19. triaugulata Germar, Mag. Ent. IV: 18. i3 (1821). 



triangularum isic) Buckton, Mon. Memb. 99 (igoS). 



20. unicolor Fowler, Trans. Ent. Soc. Lond. II : 419 (1894). 



21. variegata Fairmaire, Rev. Memb. 271. 7 (1846). 



22. vicina Fairmaire, Rev. Memb. 270. 3 (1846). 



proxima Walker, List Hom. B. M. 5i3. i5 {i85i). 

 fimbriata Stal, Rio Jan. Hem. II : 25. i (1862). 



Colombia, Brazil. 



Brazil, Venezuela. 



Mexico. 



Brazil. 



Brazil. 



Colombia. 

 Colombia. 

 Brazil, Ecuador. 



27. Genus UMBONIA Burmeister 



Umbonia Burmeister, Handb. Ent. II : i38 (i835). 

 Physoplla Amyot and Serville, Hemip. 542 (1843). 



Characters : Large, heavy-bodied, usually brightly colored insects characterized by strongly 

 developed dorsal processes, often spine-like, sometimes inflated and swoUen, and occasionally marked 

 with stripes of various colors. The diagnostic character which separates this genus from the others of 

 the tribe is the long posterior process, generally acuminate and usually extending to the tips of the teg- 

 mina. The head is subtriangular with the clypeus extending well below the inferior margins of the 

 genae; the ocelli are large, usually elevated, and much nearer to each other than to the eyes. The pro- 

 notum is roughly sculptured, coarsely punctate, seldom carinate and often brightly colored. The teg- 

 mina are long, narrow, hyaline, with five apical and two discoidal cells and a broad hmbus. The hind 

 wings have three apical cells. 



This genus is another of those often cited as showing remarkable protective imitation as evidenced 

 by the dorsal processes which are in many species distinctly thorn-Iike and in others subfoliaceous. The 

 form of the dorsal process shows great variation within a species with the result that a considerable 

 number of forms have been described which have later proved to be synonyms. 



Type spinosa Fabricius. 



Geographical distrlbution : 



1. amazili Fairmaire, Rev. Memb. 277. 9 (1846). 



2. ataliba Fairmaire, Rev. Memb. 278. 11 (1846). 



lativitta Walker, List Hom. B. M. 520. i5 {i85l). 



3. crassicornis Amyot and Serville, Hemip. 5^3. i (1843). 



nigraia Amyot and Serville, Hemip. 543. 2 {1843). 

 orizimbo Fairmaire, Rev. Memb. 277. 7 (1846). 

 media Walker, ListHom. B. M. 5i6. 2 {i85i). 

 decorata Walker, List Hom. B. M. Suppl. 3 {i858) 

 picta Walker, List. Hom. B. M. Suppl. i3o {i858). 

 intermedia Walker, Ins. Saund. 66{i858). 

 rectispina Stal, Bid. Merab. Kan. 265. 4 {1869). 

 peracea Griffini, Stud. Memb. Umb. 3 (i8g5). 

 camerani Griffini, Stiid. Memb. Umb. 3 (1895). 



4. erecta Goding, Mem. Ecuad. 33. 37 (1920). 



5. ermanni Griffini, Stud. Mem. Umb. X : 5 (1895). 



Mexico. 



Brazil, Costa Rica. 



Mexico, Honduras, Guate- 

 mala, Costa Rica, Panama, 

 Brazil, United States. 



Ecuador. 

 Mexico. 



