June-Sept., I9I9-] DaVIS : CiCADAS. 203 



village in the north central part of the present South Dakota, and in 

 late June they both went about 150 miles still further north to the 

 Mandan Indian village close to the site of the present city of Bis- 

 mark in North Dakota, where they stayed for a few days before re- 

 turning to the Arickara village. In Bradbury's account we read on 

 page 226 the following from Mr. Cook's narrative of Mr. Hunt's 

 expedition from the Aricaras to the Pacific. " Messrs. Hunt, Crooks, 

 Miller, M'Clellan, M'Kenzie, and about sixty men, who left St. Louis 

 in the beginning of March, 181 1, for the Pacific Ocean, reached the 

 Aricara village on the thirteenth day of June. ..." Mr. Crooks was 

 one of the partners and we quote his statement to show, among other 

 things, that it was 181 1 and not in 1810, as has sometimes been stated, 

 that the Astoria party ascended the Missouri. From reading Irving's 

 account one might easily get the impression that it was in 1810. 



Irving in his Astoria says: " On the 18 of July Mr. Hunt took up 

 his line of march by land from the Arickara village leaving Mr. Lisa 

 and Mr. Nuttall there where they intended to await the expected ar- 

 rival of Mr. Henry from the Rocky Mountains. As to Messrs. Brad- 

 bury and Breckenridge they had departed some days previously on a 

 voyage down the river to St. Louis, with a detachment from Mr. 

 Lisa's party." 



Mr. Bradbury records that he started on July 17, and it took him 

 until the end of July, or slightly longer, to reach St. Louis, and on 

 page 193 he further states that Mr, Lisa with whom Nuttall had re- 

 mained, arrived in St. Louis in November. 



From the foregoing it will be seen that Cicada rimosa was no 

 doubt taken close to the Missouri River in what is now North or 

 South Dakota, for Mr. Nuttall did not arrive at the Aricara village 

 until about the time the species of Okanagana emerge, and allowing 

 him a month or more to reach St. Louis, he left the Indian village 

 after their season was over. 



We now know that there are several species of Okanagana that 

 resemble rimosa and may be mistaken for it, but having located Mr. 

 Nuttall's whereabouts in June, July, August and September, 181 1, 

 covering the time of emergence of these insects, we can more cer- 

 tainly identify the species by our examination of specimens from the 

 same region. This has been done and a male collected at Sioux City 



