10 Annals of the Carnegie Museum. 



Genus Otumba Morse. 



Otumba Morse, Biol. Cent.-Amer., Orth., II, pp. 5, 7 (1900); Hancock, Tett. 

 N. Amer., pp. 34, 50 (1902); Ib., Gen. Ins., Fasc. 48, Orth. Acrid. Tetr., pp. 32, 

 43 (1906); Bruner, Ann. Carnegie Mus., VII, pp. 91, no (1910). 

 A strictly tropical American genus containing several rather common 



species. 



6. Otumba lobata Hancock. 



Otumba lobata Hancock, I. c, and reference, pp. 44, 45, no. 4 (1906); Bruner, I. c, 

 pp. no. III (1910). 



This grouse-locust is represented in the material now being reported 

 upon by the following specimens: i cf, 2 9 9, Mana River, May, 

 1917, C. M. Ace. No. 6008: I 9, Pied Saut, Oyapok River, French 

 Guiana, Dec, 1917, S. M. Klages, collector, C. M. Ace. No. 61 11. 



Genus Allotettix Hancock. 



Alloieilix Hancock, Ent. News, x, p. 276 (1.899); Ie., Tettig. N. Amer., pp. 126, 

 127 (1902); Ib., Gen. Ins., Fasc. 48, Orth. Acrid. Tetr., pp. 48 (1906); Bruner, 

 Ann. Carnegie Mus., VII, p. 114 (1910). 



Allotettix is another of our tropical American genera of grouse- 

 locusts. Its representatives are all extremely slender insects with 

 greatly lengthened wings and pronotal shield. Eight species have 

 been recognized and characterized. At least three of these are found 

 among the material now being examined. 



7. Allotettix chipmani Bruner. 



Allotettix chipmani Bruner, Journ. N. Y. Ent. Soc, XIV, p. 146 (1906); Ib., 

 Ann. Carnegie Mus., VII, pp. 115, 116 (1910); Hancock, Gen. Ins., Fasc. 

 48, Orth. Acrid. Tetr.. p. 48 (1906). 



There are quite a number of specimens of both sexes of this insect 

 before me as I write. They come chiefly from the Mana River in 

 French Guiana and were taken during the months of May and June, 

 1917. C. M. Ace. No. 6008. Three other specimens are also at 

 hand, which are referred to this species, one male and two females, 

 from the Oucatopi Island, where they were taken in June, 191 8, by 

 S. M. Klages. C. M. Ace. No. 6178. 



8. Allotettix peruvianus (Bolivar). 



Paraleltix peruvianus Bolivar, Ann. Soc. Ent. Belg., XXXI, p. 272 (1887). 

 Allotettix peruvianus Hancock, Gen. Ins., Fasc. 48, Orth. Acrid. Tetr., p. 48, 

 fig. 18 (1906); Bruner, Ann. Carnegie Mus., VII, pp. 115, 116 (1910). 



