150 Journal New York Entomological Society. t^oi. xxvi. 



Specimens from Kansas, Missouri, Oklahoma, Arkansas, Alabama, 

 Louisiana, and a great many from Texas, have been examined in 

 addition to those mentioned above. The type locality given by Halde- 

 man is "the Great Salt Lake Valley," but no cicada filling the de- 

 scription has been seen by the writer from Utah. In the preface to 

 his article containing the original description, Haldeman states that 

 owing to the small number of insects collected by the Stansbury 

 expedition, specimens from Texas have been included in his paper, 

 so there may be an error in locality. If in time a species from Utah 

 is found that more closely fills the description of resh, we still have 

 the name of robertsonii Fitch for the Mississippi insect. 



Tibicen marginalis (Walker). 



Cicada marginata Say. 



Figured in Journal N. Y. Ento. Soc, March, 1915, PL 2, fig. i, 

 and December, 191 5, PI. 18, fig. 2. 



Nesbitt, August, 1915, male (L. E. Lea), Flora, August, 1916, 

 male (H. B. Greaves); Hattiesburg, September 11, 1915, male and 

 female on willow (Rehn and Hebard) ; two males with no labels. 



This species seems to be more particularly confined to the central 

 part of the United States, reaching northward to Kansas and Iowa, 

 and eastward to western Ohio, Kentucky and Tennessee. 



Tibicen olympusa (Walker). 



Cicada sordidata Uhler. 



Figured in Journal N. Y. Ento. Soc, March, 1916, PI. 5, fig. 5. 



Long Beach, July, 1916, two males (W. J. Frederich). While 

 this is so far the most western record, the insect will probably be 

 found in Louisiana. It is common in Florida, especially near the 

 coast, occurs in southern Georgia, and Mr. H. P. Loding has sent me 

 four males from Mobile, Alabama, collected July 2, 1916. 



In this, as well as in probably all the remaining species of Tibicen 

 here mentioned, the song may last for a long time. In the present 

 species it much resembles the stridulation of some of the Neocono- 

 cephalus grasshoppers or Tettigoniidae. 



Tibicen delicata (Osborn), found in Louisiana and Texas, may 

 possibly be found also in Mississippi. It is figured in the Journal 

 N. Y. Ento. Soc, March, 1916, PI. 6, fig. 2. 



