140 Journal of the Mitchell Society [May 



lation of new species with old or with no keys for their determination 

 and \Qry few illustrations. Then too, many of the original descrip- 

 tions were made by the older entomologists before the middle of the 

 nineteenth centnry and have never been brought down to date. It 

 was with these points in mind that the present paper has been pre- 

 pared in the hope that it would bridge a gap and would stimulate 

 real interest in this family in the future. 



Distribution 



' The Fnlgorida' of Eastern North America have not been collected 

 sufficiently for us to know very much about their distribution as is 

 evidenced by the fact that of the three hundred and one known species 

 eighty are known from a single state only, or two closely contiguous 

 states. . Of the remainder ninety-seven seem to have a general distri- 

 bution ; forty-four are generally southern in their distribution ; 

 twenty-nine are western species that invade our territory; ten are 

 apparently West Indian forms more or less abundant in Cuba that 

 have invaded Florida; three are European forms which have become 

 established ; and nine are Mexican forms that have crossed the Mexican 

 border into Texas and the other border states. 



As used in this paper the term Eastern North America is used to 

 include all the territory lying east of the foot hills of th6 Rocky 

 Mountains. This large area seems to be rather homogeneous as far 

 as its f ulgorid fauna is concerned, but as pointed out above there are 

 naturally certain intrusions especially in Florida and Texas. Other 

 West Indian, Mexican and western forms will undoubtedly be found 

 within our territory but only species with definite records within our 

 borders have been included below. Certain of the older species 

 which have been recorded from North America only have been in- 

 cluded for the guidance of future students. 



Taxonomy 



Head Regions. The regions of the head of the FuUjoridm used 

 in taxonomy are the vertex, frons, genie and clypeus. The frons, 

 vertex and genre are frequently jirolonged into a long cephalic pro- 

 cess. The vertex shows a number of good specific characters in most 

 genera. The comparative length and l)rc<i(lth. the shape and the ar- 

 rringcincnts of the carina are usually (juite specific and have been 

 iinu'h used in the i)a.st. Sometimes the vertex is narrow and shades 



