STATE HORTICULTURAL SOCIETY. 23 I 



It is true that the worms in the grapes were known to be one-halt' 

 smaller than those which matured in the apples, yet, in every other par- 

 ticular, wccoulil see no very marked diffl-rence. 



We have been acquainted with the larvic of the Grape Codling since 

 near the time we settled in the West; this insect, therefore, can not be 

 considered a new enemy of the vine. Previous to the great increase of 

 vineyards it, like many other insects, does not appear to have attracted the 

 special notice of entomologists. 



We do not speak disparagingly when we state that prior to the sum- 

 mer of 1S6S we believe that the then State Entomologist of Illinois or 

 of ^Missouri practically knew nothing of it. 



About the i6th of June of that year, Mr. Walsh, the party first 

 referred to, paid us a week's visit, and we directed his attention to what 

 we, up to that time, had believed to be apple worms in our grapes. lie 

 at once made a careful comparison of these" larvae, under the microscope, 

 with those of the codling moth taken from apples, and stated that he 

 believed them to be diflerent, but that they would probably be found to 

 belong to some some closely allied moth. 



A few days after Mr. Walsh left us, we were with the Ad Interim 

 Committee of the Missouri State Horticultural Society, visiting the Iron 

 Mountain district. We there directed the attention of the Missouri State 

 Entomologist to the same insect, and after a tedious search in the vine- 

 yard of Dr. Dyer, near V'ilieland, we succeeded in finding two or three 

 of the larvif. 



Some time after this he stated he had bred to the perfect state, and 

 found diem to be distinct from the colding moth. Figures of this Grape 

 Colding were published on page 77 of the American Entomologist for 

 May, 1S69. The manner in which the larva cuts and folds the cocoon 

 out of the leaves of the grapes is shown on the page following. While 

 we do not doubt that these delineations of the three stages of the insect 

 are conect, nevertheless, we think the writer has fallen into an error witb 

 respect to the manner they prepare for their transformation, especially in 

 the open ground. Never having experimented with the larvae in confine- 

 ment, of course we do not know what use they would make of pocket 

 handkerchiefs or leaves, if provided with those articles. We now quote 

 from the article above referred to, last half of paragraph headed, " Its 

 Natural History :" 



" The cocoon is often formed on the leaves of the vine, in a manner essentially 

 characteristic. After coverinjT a given spot with silk, the worm cuts out a clean 

 oval flap, leaving it hinged on one side, and, rolling this flap over, fastens it to 

 the leaf, and thus forms for itself a cosy little house. One of these cocoons is rep- 

 resented at Figure 124 b, and though the cut is sometimes less regular than shown 

 in the figure, it is undoubtedly the normal habit of the insect to make just such a 

 cocoon as represented. 



" Sometimes, however, it cuts two crescent-shaped slits, and, rolling up the 

 two pieces, fastens them in the middle as shown at Figure 125. And frequently it 

 rolls over a piece of the edge of the leaf, in the manner commonly adopted by leaf 

 rolling larva-, while we have had them spin up in a silk handkerchief, where they 

 made no cut at all." 



