164 Journal New York Entomological Society. fVoi. xxiii. 



var. dcalbafa Davis. However, dealbata will probably be raised to 

 specific rank when more is known about it. Some of our eastern 

 species, which are plainly distinct, like linnei and canicularis, have 

 similar genitalia. 



Distant in his Catalogue of the Cicadidae (1906) mentions three 

 synonyms of Cicada dorsata. Cicada robertsonii Fitch (1856) is 

 the first of these. The original description states that the wings are 

 " glossy-hyaline, their veins slender, green, becoming light yellow 

 at their apices ; rib of the anterior wings edged with black on its 

 inner side, length to the tip of the closed wings in the female two 

 inches and fifteen hundredths. From the Creek Indian territory. 

 . . ." This is not descriptive of either dorsata or marginata var. deal- 

 bata and we believe that Cicada resh Haldeman, was probably the in- 

 sect under consideration. 



The next synonym mentioned by Distant is TJiopha varia Walker. 

 No locality was given when this species was described, but from the 

 size and general description together with the tawn)'- and ferruginous 

 markings mentioned it appears to be the same as C. dorsata Say. 

 The wings are said to be " almost colourless, tawny at the base, veins 

 ferruginous, tawny towards the base, where they are partly black, 

 very slightly clouded with tawny towards the tips ; first and second 

 cross-veins and the longitudinal vein beyond them clouded with 

 brown." This is a good description of the wings of Cicada dorsata. 



The third synonym is Fidicina crassa Walker. As in the last de- 

 scription no locality is mentioned, but from the general account of the 

 insect it appears to be a dorsata with the pruinose markings elimi- 

 nated by age. " Wings vitreous, rather broad ; veins tawny, piceous 

 towards the tips. Fore wings with first and second transverse veins 

 very oblique, clouded with dark brown. . . ." 



EXPLANATION OF PLATE XIL 



Fig. I. Cicada dorsata Say. 



Fig. 2. Cicada marginata var. dealbata Davis. 



