Mr. R. Shelford's Studies of the Blattidie. 255 



8. P. amcricana, Sss. (Argentine Republic.) 



Tkyrsocera amcricana, de Saussure, Rev. Zool. (2), xxi, 

 p. Ill (1869) ; Miss. Mex. Orth. p. 51 (1870). 



The type is in Paris. Tiiis is another rufous species, 

 perhaps not distinct from P. annulicornis, Burm. 



9. P. miniica, Wlk. (Brazil, Para.) 

 Pseudomojjs mimica, Walker, 1. c. p. 80, n. 17 (1868). 



9 . Head black, antenn;e mutilated, pronotum rufous, with a 

 fuscous crescentic band ou the hind margin. Tegmiua dark fuscous, 

 mediastinal area and a small spot at the base of the marginal field 

 hyaline-testaceous. Abdomen black, the fifth tergum with two 

 lateral testaceous spots ; cerci mutilated ; supra-anal lamina pro- 

 duced, quadrate. Legs dark castaneous, apices of coxas and 

 trochanters testaceous. Length of body 8 mm. ; length of tegmina 

 10 mm. 



Type in the British Museum. 



The dark tegmina and the rufous pronotum render this 

 a sufficiently conspicuous insect. 



10, P. cincta, Burmeister. (Mexico, Guatemala, 



Nicaragua.) 



Thj/rsocera cinctct, Burmeister, I.e. p. 499, n. 3 (1838); 



Brunner, I.e. p. 122, n. 9 (1865); de Saussure, Mem. 



Mex. Blatt. p. 50, pk 1, f. 28 (1870) ; de Saussure and 



Zehntner, I.e. p. 32, n. 1 (1893). 

 Tkyrsocera onexicana, de Saussure, I.e. p. 122 (1864). 

 Tkyrsocera sallei, de Saussure, I.e. p. 123 (1864). 

 Pseudomops sallei, var., Walker, 1. c. p. 77, n. 4 (1868). 

 Tkyrsocera cincta, var,, de Saussure, Miss. Mex. Orth. p. 51 



(1870). 



The species exhibits a great range of variation, the 

 extreme forms are very different in coloration, but as 

 de Saussure has examined a considerable series of speci- 

 mens which help to bridge over the differences, I accept 

 his conclusion that P. sallei is merely a rufous variety of 

 cincta'. 



