220 NATURAL HISTORY BULLETIN. 



one title 1 and treat respectively of collections made by Mr. 

 Fred C. Bowditch and Mr. E. A. Schwarz. Mr. Bowditch 

 collected mostly in the vicinity of Georgetown, in the Leaven- 

 worth Valley, the South Park and near Florissant. A number 

 of records, however, are of species taken at Alma, Garland 

 and Manitou, or on high mountains. The collections of Mr. 

 Schwarz are from the southern part of the state — Alamosa, 

 Garland, La Veta and Veta Pass. These papers are of the 

 highest scientific value. 



Finally we have the publications of Prof. T. D. A. Cock- 

 erell, who resided for some time at West Cliff, in Custer 

 county, and who printed several articles on the insect fauna 

 of Colorado, the most important being one dealing with the 

 entomology of Custer county. 3 This memoir is not a mere 

 list of species but contains numerous valuable notes on habits 

 together with a discussion of several distributional problems. 

 Other papers by this author treat of the insects of different 

 parts of the state. 



The amount of work done by investigators who have not 

 published the results is very considerable and probably their 

 records would more than equal those which have appeared in 

 print. Some of the more important trips may be noted here. 

 In 1877, the late Mr. H. K. Morrison spent three months in 

 the state, making collections in all orders, but I believe that 

 he did not furnish accurate localities with his material; at any 

 rate I have seen nothing more definite than " Colo. Morr." on 

 any of the labels. In 1885, Messrs. Roland Hayward and 

 Fred. C. Bowditch made a long journey on horseback from 

 Gunnison to Montrose, thence through part of the Uncom- 

 pahgre country to Placerville, Rico, Durango and Northern 

 New Mexico. Returning, they went back to Durango, thence 

 eastward to Pagosa Springs, up the valley of the San Juan to 



1 The Coleoptera of the Alpine Regions of the Rocky Mountains. Part I. 

 Bulletin of the U. S. Geological and Geographical Survey, Vol. IV, No. 2, 

 1878. Part II., t. c. Vol. V, No. 3, 1879. 



8 The Entomology of the Mid-Alpine Zone of Custer County, Colorado. 

 Transactions of the American Entomological Society, Vol. XX, 1893. 



