.58 NEW YORK STATE MUSEUM 



Nothing further was known regarding this species till 1893 : 

 when specimens were sent to Prof. F. M. Webster, then of the 

 Ohio Agricultural Experiment Station, who made an exhaustive 

 study of the insect and published a detailed account of his inves- 

 tigations in 1895. 



Injuries by this insect in the state of Arkansas were recorded 

 by Prof. J. T. Stinson in 1896, and in the same year Professor 

 Webster notes a decrease in the numbers of the, pest in Ohio 

 vineyards and attributes it as possibly due to the efficient work 

 of two egg parasites and a mite, Heteropus ventri- 

 c o s u s Newport. The following year Messrs Webster and 

 Mally reported, as a result of a series of experiments, that 

 tobacco dust and kainit were practically ineffective against this 

 insect, and two years later these gentlemen record the unusual 

 abundance of the pest in Ohio vineyards, and state that serious 

 injuries occurred at Bloomington 111. The presence of this 

 beetle in destructive numbers in the Chautauqua grape belt 

 was recorded by Prof. M. V. Slingerland in 1900, who at that 

 time published a general compiled account of the insect. Dr 

 J. B. Smith in his Catalog of the Insects of New Jersey states that 

 this species occurs throughout New Jersey on the grape and 

 Ampelopsis, and he also records it from Staten island. A brief 

 note published by Dr L. O. Howard last year states that the 

 depredations of this insect at Bloomington 111. continue una- 

 bated and severe damage to vineyards is recorded. The writer, 

 in the early spring, published a brief notice of the extent of the 

 injuries in the Chautauqua grape belt with a summary of the 

 life history of the pest and outlined a series of experiments,, 

 which latter are reported on in detail in this bulletin. 



DESCRIPTION 



The perfect insect is a small, .brown, rather robust beetle 

 about i inch in length and rather densely covered with short 

 grayish white hairs. It may be recognized by aid of plate 1, 

 figure 1. 



The egg is about -£t inch in length and with its transverse 

 diameter about one fourth as great. Form, nearly cylindric^ 



