March. 1921.] Davis: Annotatkd List ok Colorado Cicadas. 4.') 



Cicada dorsata Say. 



Cicada ntargiiiata Say [Tibicoi niarginalis Walker of this list]. 



Cicada Hbicen Linn. [Tibiceii liuuei ( S. & G.) of this list]. 



Proanta valvata Uhler. 



Tibicen synodica (Say). 



Tibicen rimosa (Say) [Okanafiaua bclla Davis of this list]. 



Tibicen cruentifera Uhkr. 



Platypodia putnami (L'hler). 



Mclampsalta parvula (Say I [M. dilliopc (W'alki-r) of this list]. 



The reason.'; for droppins? tibiccu Linn, a.^; far as the fauna of the 

 United States is concerned were s^ivcn by .sniitli and (irossheck. l-lnto- 

 moloj^ical News. XVIIL 1907, and the otlier two chanj.::es arc ex- 

 plained by tlie writer in the June-Sept., IQ19, and June. i()2o. numbers 

 of the Journal, X. Y. Kntomological Society. 



While there will ultimately be found just as many or even more 

 species of Cicadas in Kansas than in Colorado, the following re- 

 marks on the latter state by Gillette and Baker in their introduction 

 to the list already referred to, seem well ju.stified: "" Probably there 

 is no state in the Union offering a richer field for the student of 

 natural history than Colorado, whether it be in the line of minerology, 

 paleontology, zoology or botany. Its broad stretch of arid plains 

 crossed by streams of living water, its high mountain ranges, broad 

 plateaus, innumerable gulches and deep canons, all combine to give it 

 a most excei)tional toi)ography with a consequent dixcrsified fauna 

 and flora." 



A very useful pajier on the Cicadidae of Kansas, by P. 1'. Lawson. 

 Kansas University Science Bulletin. \'ol. Xll. Xo. 2, March 15, 1920. 

 was distributed in Xovember. 1920. It contains descriptions of 

 twenty-one species occurring in that state, also numerous figures of 

 structural details. As eleven species of Cicadas have been found both 

 in Kansas and Colorado, the paper will be heli)ful in considering those 

 mentioned in the present list. There is, however, a considerable dif- 

 ference in tlie Cicada fauna of these two adjoining states, and it is 

 alway.s of interest to note tlie changes that take ])lacc in animal life 

 a.s the one hundredth meridian is ai)proached. 



I. Tibicen linnei (Smith ami (irossheck). 



Figured in Joi-rnal, X. \. I*"ntomological Society, Sept.-Dccctn- 

 ber, 1918. PI. 7. fig. I. 



