268 BRAZILIAN ORTHOPTERA 



Eotnorphopus granulatus Hancock 



1906. E[omorphopus] gra/mlatus Hancock, Genera Insectorum, fasc. 48> 

 Tetriginae, p. 38, pi. IV, figs. 35 and 35a. [Dutch Guiana.] 



Para, Para. (C. F. Baker.) Seven males, one female. 

 (W. M. Mann.) One male. 

 These specimens have been compared with a topotype and 

 found to full agree. In this species we find at least four well 

 marked chromatomorphs -p one, blackish with obsolete transverse 

 pale fasciae on the dorsal and lateral faces of the caudal femora; 

 another, uniform reddish; a third, ashy white; the fourth, gray 

 brown faintly mottled with darker. The genetic value of these 

 chromatomorphs will probably be found similar to those isolated 

 in Paratettix texanus by Nabours.^" 



Chiriquia concinna (Bolivar) 



1887. M[etrodora] concinna Bolivar, Ann. Soc. Entom. Belg., xxxi, p, 249. 

 [Paramaribo, Dutch Guiana.] 



Para, Para. (C. F. Baker.) One female. 

 Bruner^^ has already recorded this species from the same 

 locality. 



Otumba lobata Hancock 



1906. 0[tumba] lobata Hancock, Genera Insectorum, fasc. 48, Tetriginae, p. 

 45. [Demerara,32 British Guiana.] 



Manaos, Amazonas. (Mann and Baker.) Two males, 

 one female. 

 These specimens fully agree with the description and Guianan 

 material of the species. The tegmina are flavo-maculate in all 

 the individuals. 



28 It is necessary to have some term to designate color form without at the 

 same time using a word as indefinite as "variety," as definite in geographic 

 meaning as "race," as negative a meaning in this connection as the unquahfied 

 word "form" or as teratological a meaning as "aberration." We prefer a 

 word like chromatomorph, which expresses an idea, but at the same time 

 does not attempt to give the origin of the concept so named. The use of the 

 term is largely provisional, as many apparent color "forms" will in the future 

 be shown to be Mendehan, while others as certainly will prove to be of en- 

 vironmental or physiological derivation. The word used merely enables one 

 to speak of effect, while the experimental biologist is working on the cause. 



30 Journ. of Genetics, iii, pp. 141 to 170, (1914). 



31 Ann. Carncg. Mus., vii, p. 99, (1910). 



32 Vide Bruner, Ann. Carneg. Mus., vii, p. Ill, (1910). 



