March. 1921.] Davis: Annotated List of Colorado Cicadas. 43 



Montilaira uta (Chamberlin). 

 Fig. II. Tibia of palpus of male, dorsal view. 



Montilaira perplexa ( Kcyserling). 

 Fig. 12. Tibia of palpus of male, dorsal view. 



Microneta Iteathi n. sp. 

 Fig. 13. Lateral view of abdomen, with cpigynum. oi niiiale. 



AN ANNOTATED LIST OF THE CICADAS OF COLO- 

 RADO WITH DESCRIPTION OF A NEW SPECIES. 



By W.M. T. D.u-is. 

 Xew Bri($hto.v, St.\ten I.sl.\.nd, X. Y. 



In the summer of 1919 the American Museum of Natural History 

 sent a collecting party to Colorado, and among the insects secured 

 by Dr. Frank E. Lutz and his two companions Messrs. Herl)ert F. 

 Schwarz and Pearce Bailey. Jr.. were twelve species of Cicadas. 

 Dr. Lutz has kindly turned these over to me for determination. In 

 the summer of 1920 Dr. Lutz secured an additional .species. Prof. 

 Theodore D. A. Cockerell has sent me several species collected in the 

 state, one of which is here described as new. and has also furnished 

 the names of three fossil species. To Prof. C. P. Gillette and Prof. 

 Charles R. Jones of the Colorado Agricultural College. I am indebted 

 for the loan of specimens representing nine species. To these source-* 

 of information have been added records made by the writer from 

 specimens in his own collection, or sent to him at various times for 

 determination. These last are acknowledged in connection with the 

 several records. 



There are a few species found in the eastern halt of Kansas, and 

 also in Nebraska, that do not appear to reach Colorado, but on the 

 other hand some of the recorded species of Okaniiyana |)robably do 

 not extend eastward of the mountainous regions of the state. 

 Twenty-three species are here recorded, but only two of them, namely 

 Tibiccn linnci and Tibiccn canicularis, are of the fauna of the 

 Atlantic .states. The majority of the others mentioned are confined 



