42 BULLETIN NO. 4, DIVISION OF ENTOMOLOGY. 



THE HIOKOEY TUSSOCK-MOTH. 



(HaUsidota car y as Harr.) 



At Waterville and vicinity I found a number of caterpillars, when 

 fully grown about one inch or a little more in length. The head arid 

 under side of the body are black ; the upper part, so far as can be per- 

 ceived, is white, sprinkled with black dots, and with transverse lines 

 between the rings. They are covered with short, spreading tufts of 

 white hair, with a row of eight black tufts on the back, and two long, 

 slender, black pencils on the fourth and tenth rings. The tufts along 

 the back are so close together as to form an apparently unbroken ridge 

 of short, dense, and somewhat bristly hair. The hair on the front part 

 of the body is longer than the rest and overhangs the head. These 

 caterpillars are full-grown about the 10th of September, spin a cocoon 

 in some crevice, under stones or in heaps of rubbish, and transform into 

 a brown chrysalis. In June following the moths appear. They expand 

 from 1£ to 2 inches ; the fore wings are long, pointed, of a pale ocher- 

 yellow color, finely sprinkled with brown dots, and crossed by four 

 irregular rows of large white and semi-transparent spots. 



The caterpillars do not seem to feed very heartily, as even where 

 they were most plenty the leaves were not noticeably eaten. They, are 

 nowhere very abundant, have not been known to do any serious injury, 

 and are probably kept in check by the fact that before they are ready 

 to spin up the vines are cut down, and then, when forced by want of food 

 to make their cocoons in the piles of vines, they are destroyed when 

 the vines are burnt. 



THE HOP PLA^TT LOUSE. 



(Aphis [Phorodon] humuli Schrank.) 



This insect is well known to all growers, and was especially injurious 

 during the past season, the hops being rendered universally of an infe- 

 rior grade, and many spots so greatly injured that they were not picked. 

 For many years past the hops have been more or less injured by lice, 

 but this year they were especially abundant, the universal testimony of 

 all growers being to the effect that never before had they known of such 

 injury caused by them. Nothing at all was done to combat them, the 

 worst infested parts of the yards only being first picked, sometimes a 

 little before fully ripened, and most of the energy and ingenuity being 

 devoted to bleaching out of the hop all trace of the "mildew" and 

 . " rot " caused by the insects. 



As in respect to these insects my notes are full, I will simply tran- 

 scribe them. 



June 21. — At Herkimer, in Mr. Pine's yards, examined carefully for 

 aphids, but find no traces of them. Mr. Pine says his low-lying yards 



