REPORT OF THE ENTOMOLOGIST. 



393 



above where the fibrous roots are put forth, which cavity connected 

 with the upper channel in the stem. 



As late as the 21st of May I found these larvse, now frequently 5 ,ura 

 in length, still working in the young plants, and, although making their 

 way upward, they were still below the surface of the ground. 



From the 7th of May until the loth I examined many fields of later- 

 sown oats, but could find no trace of the larvae in them, neither in fall 

 wheat nor rye, although they were abundant in the grass along the mar- 

 gin of these same fields, the stems of fall-sown grain evidently being 

 too tough for the very young larvaB. 



I also sugared for the moths every evening during this time about 

 the grain fields, but obtained no moths. 



These observations, I think, go to show the correctness of our pres- 

 ent theory, viz., that the moths hibernate during the winter, and in the 

 spring deposit their eggs in grasses, and from thence the larva; distrib- 

 ute themselves over the fields later in the season. Or they may, as I 

 have shown, oviposit on early spring grain. 



I believe we shall find that these eggs are deposited, as a rule, prior 

 to the 1st of May. I also believe that during the latter two-thirds of 

 their larval stage these insects are rather more nomadic in their habits 

 than we have supposed, or else are, when from half to two-thirds grown, 

 overtaken with a mania for moving. 



In sweeping grasses in June I have found these larvae as abundant in 

 my net as any other species, and frequently observed them traveling 

 about from place to place. The first moths were taken at Oxford, Ind., 

 on August 20. 



REPORT UPON INSECTS AFFECTING THE HOP AND THE CRAN- 

 BERRY. 



By J. B. Smith, Special Agent. 



HOP INSECTS. 



Having last year watched the Aphides until the crop was gathered, 

 the poles stacked, and the old vines piled for burning, and having de- 

 termined the probability that during the winter they lived on the roots 

 in some form, I visited Cooperstown early in spring to watch for their 

 first appearance. Cooperstown was selected because Mr. Clark had 

 informed me that the Aphides had been found by him in grubbing, 

 and because he had promised in all ways to aid me. Adverse weather 

 delayed all investigation for a short time, but as soon as at all possible 

 I carefully examined fences, piles of stacked poles, and neighboring 

 trees, exploring all crevices of the fences, stripping loose bark from the 

 poles, and very closely examining all possible hiding places. No trace 

 of the Aphides was found. Meanwhile grubbing progressed. Grub- 

 bing consists in digging up all round the hills, exposing the roots, and 

 trimming off all superfluous shoots and runners. Every advantage for 

 examining the roots was therefore offered to me, and all the men were 

 instructed to keep a sharp lookout. Yet, though the work was done in 

 yards which last year were most infested, and though I dug down to the 

 bed-root and carefully examined hills everywhere, not a trace of the 

 Aphides could i find. Nor were Mr. Clark's researches crowned with 

 better success. Later I learned from my correspondents in the hop re- 



