262 PROCEEDINGS OF THE ACADEMY OF [July,. 



It is further evident that Scudder's Barytettix peninsulce,^"^ known 

 from the unique female before us, is nearer Sinaloa than any other 

 described genus and should be placed in this genus until the male 

 sex is found to determine whether separation is necessary. 



The female type of peninsula is more robust, with pronotum 



proportionately much shorter, than the female allotype of hehrensii. 



It differs further in the broader and non-sulcate facial costa, decided 



transverse sulci of the dorsum of the pronotum which cut the weak 



median carina,^^ strikingly bicolored tegmina and marking of the 



lateral lobes of the pronotum, which is of the same general type as 



found in nitida but l^y no means as solidly, sharply and strikingly 



defined as in that species. 



i 

 PHAULOTETTIX Scudder. 



1897. Phaulotettix Scudder, Proc. U. S. Nat. Mus., XX, p. 29. 



1907. Calotettix Bruner, Biol. Cent.-Amer., Orth., II, p. 309. 



Scudder's description is based on an immature specimen, a& 

 demonstrated by the individual now before us. Without examina- 

 tion of this type Bruner had every reason to believe that his material 

 represented an undescribed genus. 



The genotype, by monotypy, is Phaulotettix compressus Scudder. 

 Phaulotettix compressus Scudder. 



1897. Phaulotettix compressus Scudder, Proc. U. S. Nat. Mus., XX, p. 30, 

 PL II, fig. 11. [ [juv.] cf ; Monclova [nee Montelovez), Coahuila, Alexico.J 



1904. Sinaloa brevispinis Rehn, Proc. Acad. Nat. Sei. Phila., 1904, p. 535. 

 [cf, 9 ; Victoria, Tamaulipas, Mexico.] 



1905. Calotettix bicoloripes Bruner, Biol. Cent.-Amer., Orth., II, p. 309. 

 [&, Victoria, TamauUpa"s, Mexico.] 



1908. Calotettix flavopictus Bruner, ibid., p. 310. [9, Alonclova (nee 

 Montelovez), Coahuila, Mexico.] 



1908. Calotettix brevispinis Bruner, ibid., p. 311. (Generic assignment.) 

 1908. Calotettix obscurus Bruner, ibid., p. 311. [d", Tampico, [TamauUpas], 

 Mexico.] 



Scudder's type is an immature individual in one of the later 

 instars. We are able to associate it with adults, beyond doubt as 

 to species, from a large series of both adults and young now at hand 

 from the eastern portion of the arid southwestern United States. 



All of the material noted in the above synonymy is now before us. 

 Rehn's synonym is due to Scudder's description of compressus of a 



1^ 1897. Barytettix peninsulce Scudder, Proc. U. S. Nat. Mus., XX, p. 28. 

 [ 9 , Lower California.] 



15 The weak transverse sulci of the prono'tal disk cut the weak median carina 

 in the male type of behreyisii, but do not do so in the female allotype of that species, 

 the association of these specimens as sexes of the same species being unquestion- 

 ably correct. This is probably due to individual variation and shows this feature 

 to be of no diagnostic value in that species. 



