6 TETTIGID.i OF NORTH AMERICA 



distribution of Paratcttix, Bol., is north, northeast, and south- 

 ward into Mexico and Central America. Clypeotettix, Hanc, 

 is Central American and Mexican. Alloiettix, Hanc, is Cen- 

 tral and South American. Tchnatcttix , Hanc, is found in the 

 western, and southern United States, Mexico, and southward. 

 Paxilla, Bol., is represented by a very singular monotypic 

 species in Florida and Georgia. Tcttif^idca, Scudd., is quite 

 widely distributed over North America, Mexico, and Central 

 America. Plcctronotus, Morse, is a Central American genus, 

 while Scaria, Bol., is Central American extending southward. 



RECENT ADDITIONS OF GENERA. 



Some species which were formerly known under the genus 

 Batrachidca were brought together by Morse (1894), under the 

 genus Noinotcttix. A genus which remained until recently 

 unrecognized in the southern United States was brought to 

 light by Hancock (1S98). To this genus he gave the name 

 Ncotcttix. Still more recently Morse (1899) added to our 

 fauna the genus Mcrotettix from California, a very curious 

 genus somewhat like the Criotcttix of the Philippines. Bolivar 

 included in the genus Paratettix an assemblage of species 

 which, after more critical study, evince differences of struc- 

 ture of such a range as to separate them into generic positions. 

 To summarize: P. aztccus of Bolivar forms the type of a distinct 

 group {Tchnatcttix, Hanc), having the vertex strongly nar- 

 rowed anteriorly. P. po'uvianus, Bol., forms another group 

 (Allotettix, Hanc), characterized by a prolongate body and 

 equal length of the posterior tarsal articles. Similarly P. 

 scliochii, Bol., typifies a group {Clypcotettix , Hanc), in which 

 the head is somewhat retracted within the dilate pronotum, 

 and the femora present an extraordinary clypeate form. It is 

 seen Paratcttix proper is narrowed down to a circumscribed 

 group which still comes within the meaning of Bolivar's origi- 

 nal description. Morse (1900) has made known a number of 

 interesting genera in the material gathered for the Biologia 

 Centrali Americana. Tylotettix, Chiriquia, Otiimba, Platytliorus, 

 Oclietotcttix, and Plectroiwtus are worthy of special mention. 



