REPORT OF THE DIRECTOR I916 61 



Faunal studies. Investigations along these lines have been 

 continued and a manuscript list of the insects of the Adirondack 

 region, based mostly upon material in the state collection, is nearly 

 ready for publication. This list is a growing one, additions being 

 constantly made thereto in connection with other work carried 

 on within the limits of our faunal area, such as the study of grass- 

 hoppers the last two or three years. 



Another valuable addition to the natural history of the State 

 is practically ready for the printer, namely ''A Monographic 

 Account of the Caddis Flies or Trichoptera," by Dr Cornelius 

 Betten. This work had its inception in the studies of aquatic 

 insects begun at the entomological field station, Saranac Inn, in 

 1901, many of the results of which appear in Museum Bulletins 

 47, 68, 86 and 124. The Trichoptera are an important group 

 economically, since there are numerous species occurring in all 

 kinds of fresh waters throughout the State, some of them being 

 exceedingly abundant and consequently of great value as food for 

 fish and other aquatic life. 



Substantial progress on the " Monograph of the Stone Flies or 

 Plecoptera " has been made by Prof. James G. Needham. This 

 is another study begun at the entomological field station mentioned 

 above and will make an extensive and valuable addition to our 

 knowledge of an important and comparatively unknown group of 

 aquatic insects. These studies and those already published on 

 aquatic forms, comprise by far the most important additions to 

 our knowledge of American aquatic insects. 



The contributions to the natural history of the State from the 

 office of the State Entomologist are worthy of mention in this 

 connection. The scope of these studies, as indicated by the titles 

 cited and the amount of work involved, is suggested by the approxi- 

 mately 3500 pages of text with numerous illustrations devoted to 

 the discussion of the various groups. The more important titles, 

 aside from the long series of reports and bulletins, treating of 

 especially destructive forms, are listed below. 



Entomological Contributions 1-4, by J. A. Lintner, appearing in 

 the 23d, 24th, 26th and 30th Museum Reports, respectively, con- 

 tain many and valuable additions to the knowledge of our local 

 fauna. 



Scale Insects of Importance and List of the Species in Nezv 

 York State, by the Entomologist, Museum Bulletin 46. The more 



