Sept., '06] ENTOMOLOGICAL NEWS. 237 



the greater portion of the lobes on both faces blackish ; caudal tibiae very 

 dull olive-yellow, marked with blackish proximad and the spines of the 

 same color. 



MEASUREMENTS : 



Length of body ....... 22. mm. 



Length of pronotum ...... 5. 



Length of tegmen 3.6 ' 



Length of caudal femur .... 12.5 ' 



Mr. Hebard has kindly furnished the following note on the 

 capture of the type : " The specimen was taken in the long- 

 leaf pine (Pinus palustris} woods on a very cold day. All 

 other forms of insect life seemed absent, but I noticed this 

 individual springing about in the jasmine and wire grass with 

 great alacrity. It spite of the cold it appeared vigorous, and 

 when released from my pocket in a warm room, sprang about 

 rapidly, jumping several feet at each spring. 



Observations on Cicada tibicen L. and allied forms. 

 BY WM. T. DAVIS AND Louis H. JOUTEL. 



Dr. Harris in his "Insects Injurious to Vegetation" 1 de- 

 scribes Cicada canicularis, which he compares with Cicada 

 pruinosa of Say. He also mentions in a foot-note Cicada tibi- 

 cen of Linnaeus, which he states is even quite common within 

 the limits of the City of New York. Prof. Uhler commenting 

 on canicularis in another foot-note says : "this is nothing more 

 than a local variety of C. pruinosa Say ; there is no persistency 

 in the form and length of the abdominal valves, and the color- 

 ation and extent of pruinescence upon the insect depend upon 

 various contingencies to which it is liable." 



Mr. Chas. William Woodworth in his " Synopsis of North 

 American Cicadidse," published in Psyche, in June, 1888, fol- 

 lows the lead of Prof. Uhler, and under Cicada tibicen Linn., 

 places as synonyms both Cicada pruinosa and Cicada canicularis. 

 Most authors have, since Prof. Uhler's note, classed the three 

 species mentioned by Dr. Harris as one, or at most have con- 

 sidered that Cicada canicularis might be entitled to specific 

 rank. 



