TETKAT^ENIA.— COPIOCEBA. 263 



[TETRAT.LNIA, St&l. 



Tetrateenia, St&l, Recens. Orthopt. i. pp. 34, 53 (1873) ; Syst. Acrid, i. p. 39 (1878) j Giglio-Tos, 



Boll. Mus. Zool. Anat. Comp. Torino, xiii. no. 311, p. 45 (1898). 

 ? Euparnops, Scudder, Proc. Bost. Soc. Nat. Hist, xxvii. p. 275 (1875). 



This tropical genus ranges from Peru to the northern portions of South Ameriea 

 and contains several species. Only one of these is likely to occur within " Biologia " 

 territory. 



l. Tetrataenia surinama, Linn. 



Gryllus surinamus, Linn. Mus. Lud. Ulric. etc. p. 146 (1864) \ 

 Acridium surinamum, Serv. Hist. Orthopt. p. 671 (1839) 2 . 

 Tetrateenia surinama, Stal, Recens. Orthopt. i. p. 53 (1873) 3 . 

 Ommatolampis variegata, Burm. Handb. Ent. ii. 2, p. 637 (1838) 4 . 

 Acrydium variegatum, De Geer, Mem. iii. p. 500, t. 42. fig. 8 (1773) 5 . 



Hob. South America, Surinam or Dutch Guiana 1_5 , Brazil 5 . 



This insect may also be found in Venezuela and Colombia, in which case it would 

 probably extend to the Isthmus of Panama, since several other species of Guianan 

 locusts are similarly distributed.] 



COPIOCEEA, Burmeister. 

 Copiocera, Burm. Handb. Ent. ii. 2, p. 611 (1838). 



The insects which go to make up the present genus occur throughout the countries 

 of the northern half of South America and extreme southern North America. One 

 species inhabits Central America, while the other is found in the West Indies. They 

 may be separated as follows : — 



Synopsis of the Species of Copiocera. 



A 1 . Smaller (length, ? , 37-38 mm.). Abdomen very bright blood- 

 red. Hind femora deep sanguineous internally [1. erythrogastra, Perty.] 



A 2 . Larger (length, ?, 45-48 mm.). Abdomen dull red. Hind 



femora scarcely, if at all, sanguineous . .2. specularis, Gerst. 



[1. Copiocera erythrogastra, Perty. 



Xiphicera erythrog aster, Perty, Del. Anim. Art. Bras. p. 86, t. 24. fig. 2 (1830-34) \ 

 Opsomala erythrogastra, Serv. Hist. Orthopt. p. 589 (1839) 2 . 

 Copiocera erythrogastra, Burm. Handb. Ent. ii. 2, p. 612 (1838) 3 . 



Hab. South America, British Guiana (JR. J. Crew), Trinidad (H. D. Chipman)^ 

 Brazil i" 3 . 



Probably the Gryllus euceros of Marschall [Ann. Wien. Mus. i. p. 216, t. 18. fig. 9 

 (1836)] is the male of this insect. If so, it should be added to the synonymy.] 



