Education Department Bulletin 



Published fortnightly by the University of the State of New York 



Entered as s«cond-class matter June 24, 1908, at the Post Office at Albany, N. Y., under 



the act of July 16, 1894 



No. 510 ALBANY, N. Y. January i, 1912 



New York State Museum 



John M. Clarke, Director 

 Ephraim Porter Felt, State Entomologist 



Museum Bulletin 155 

 27th REPORT OF THE STATE ENTOMOLOGIST, 1911 



Dr John M. Clarke, Director of Science Division 



I have the honor of presenting herewith my report on the 

 injurious and other insects of the State of New York for the 

 year ending September 30, 191 1. 



The appearance in late May of a large brood of the periodical 

 Cicada or so-called seventeen-year locust was of great popular 

 interest and an entomological event of some importance. A 

 hitherto unknown colony was located near Amsterdam and 

 through the cooperation of many local observers much was 

 learned respecting the present distribution and relative abund- 

 ance of this insect in New York State. A fine series of photo- 

 graphs showing the transformations to the adult was obtained. 

 Despite the warnings of earlier years, a number of young orchard 

 trees had been set in the vicinity of populous Cicada colonies 

 and, as a result, were severely injured. A detailed notice of this 

 unique form is given on subsequent pages. 



During the period covered by this report, Miastor larvae were 

 discovered, their biology ascertained in large measure, their 

 amenability to laboratory conditions demonstrated, and owing 

 to the value of this information to teachers, a discussion of pedo- 

 genesis in this insect and its allies was included in an appendix 

 to the Entomologist's report for 1910. Subsequent studies have 

 confirmed the observations referred to above and have shown a 

 wide distribution for Miastor. 



Fruit pests. The experiments with the codling moth or apple 

 worm were continued in the orchard of Mr W. H. Hart of 

 Poughkcepsie and in those of Messrs Edward Van Alstyne and 



