April, '08] JOURNAL OP ECONOMIC ENTOMOLOGY 145 



These observations were made in the field at a time when the hoppers 

 were disturbed. From this observation it would seem that while they 

 always walk in the first, second, third and fourth nymphal stages, they 

 may either walk or hop in the fifth. 



Evening Session, Saturday, December 28, 1907 



The final session of the meeting was held in the parlors of the Wind- 

 sor-Clifton Hotel at 8 p. m. 



The following papers were presented, the discussion being postponed 

 until the close of the last paper : 



NOTES ON SOME INSECTS OF THE SEASON 



By Hekbert Osborx, Columbus, Ohio. 



While there has been no widespread devastation from insects during 

 the past season in Ohio, there have been several minor outbreaks cov- 

 ering certain localities, and some of these it seems worth while to put 

 on record. Comparison of these with occurrences of these species or 

 of other forms during other seasons has a distinct interest. 



In the northern part of the state there was a quite noticeable amount 

 of injury from the bollworm, Heliothis ohsoleta. This was particu- 

 larly serious in gardens and on the truck farms in the vicinity of San- 

 dusky, and in addition to the ordinary attacks upon corn and toma- 

 toes, attacks were made upon nearly all kinds of garden crops. Very 

 noticeable injury occurred upon beans, cabbages and various other 

 crops that have not been so commonly attacked. 



In the vicinity of Columbus there was considerable damage by the 

 walnut caterpillar, Datana angusii, many trees in Columbus and vi- 

 cinity being stripped completely bare of foliage, and clusters of Da- 

 tana occurring, sometimes representing a half dozen or more colonies 

 upon a single tree. 



Another species that was unusually injurious in the central part of 

 the state and I think over a considerable area is the white-marked 

 tussock moth, Hemerocampa leucostigma. These occurred in immense 

 numbers upon maple trees and also on other kinds of shade trees, and 

 the egg clusters on the cocoons have been a very conspicuous object 

 during autumn and the present winter. 



ENTOMOLOGICAL NOTES FROM MARYLAND 



By G. P. Welden, College Park, Md. 

 (Read by T. B. Symons.) 



Scale insects, though still holding a place of importance in the state, 

 are no longer dreaded, as formerly. A large percentage of the fruit 



