OMALOTETTIX. 281 



A\ Hind femora with the lower outer edge and sulcus pallid, the 

 upper edge and outer face only faintly fasciate. 

 b 1 . Darker, varying from wood-brown to brunneo-ferruginous, not 



at all or but faintly conspersed with fuscous. [S. America.] . [5. cteruleipennis, Bruner.] 

 V. Lighter, varying from testaceous to brunneo-cinereous, pro- 

 fusely conspersed throughout with fuscous. [Brazil.] . . [6. conspersipennis, sp. n.] 



l. Omalotettix nebulosa, Bruner. 



Jodacris (?) nebulosa, Bruner, Second Rep. Merchants' Locust Invest. Comm. Buenos Aires, p. 67 



(1900) \ 

 Omalotettix nebulosus, Bruner, Proc. U.S. Nat. Mus. xxx. p. 673 (1906) 2 . 

 Jodacris ferruginea, Gig.-Tos, Boll. Mus. Zool. Anat. Comp. Torino, xii. no. 184, pp. 32-33 



(1897) (part.) 3 . 

 Bab. % Mexico. — South America, 1 Colombia, Brazil, Paraguay, Argentina. 



A single female specimen of this genus is at hand from the Dept. of Magdalena, 

 Colombia, which I am inclined to refer to 0. nebulosa, although it differs from that 

 species in several respects. A couple of examples from the State of Guerrero, Mexico, 

 also approach 0. nebulosa more closely than they do 0. signatipes. 



[2. Omalotettix meridionalis, sp. n. 



This species is somewhat larger than 0. nebulosa and 0. signatipes, and is characterized chiefly by the 

 elongate tegmina and wings and the very conspicuous, oblique, fuscous basal band of the outer face of 

 the hind femora. In colour it is quite strongly tinged with ferruginous. 



Length of body, <J 17-5, $ 24 ; of pronotum, tf 3-4, 2 4-25; of tegmina, d 18, $24; of hind femora, 

 <$ 10, $ 12-5 millim. 



Hab. British Guiana, Demerara ; Brazil, Chapada. 



Specimens of the two sexes are at hand from both localities given above. The 

 insect surely enjoys a sufficiently wide known distribution to permit of its reaching the 

 Isthmus of Panama.] 



3. Omalotettix signatipes, Bruner. 



Omalotettix signatipes, Bruner, Proc. U.S. Nat. Mus. xxx. p. 673 (1906) \ 



Hab. Mexico, Acapulco in Guerrero (H. H. Smith), Temax and Valladolid in 

 Yucatan (Gaumer). — South America, Paraguay and Brazil 1 . 



The specimens of this species from different localities vary somewhat in size and 

 colour, but not sufficiently so to warrant their separation into distinct species or even 

 varieties. Found at Acapulco in September. 



biol. CENTR.-AMER., Orthopt., Vol. II., May 1908. 2 Oo 



