EXPEEIMENT STATION REPORT. 599 



in one of the cottony masses was found a larva which may have been 

 that of Lcetilia coccidivora Comst., a Lepidopterous insect that is 

 sometimes found feeding on this scale. 



July 11th, again examined the infested trees at Montclair, and 

 found them in the same condition as the twigs at the laboratory. On 

 many trees a few beetles were on the trunks, while several were on the 

 infested twigs and branches, sometimes resting in or on the cottony 

 masses or on the under side of the leaves, and -observation showed that 

 the beetles climbing up the trunks were those which had emerged 

 from pupae in the bark crevices. Apparently a large proportion of the 

 beetles had emerged, but there were still a few pupge, and a very few 

 young larvae were found crawling on the trunks of the trees. 



At South Orange and Maplewood the CoccineUid was also plentiful 

 on infested trees, but on the whole not so far advanced as at Mont- 

 clair, a much larger proportion being in the pupal stage. Here, too, 

 nearly every egg mass of Puhinaria was or had been infested, and it 

 was in these that most of the pupse were found. 



About this same time a few infested trees on Townsend street, 

 Xew Brunswick, were examined, and conditions were found somewhat 

 similar to those in other localities. Although the scale was not as 

 abundant as in the worst infested places, yet there was considerable 

 setting of larva on the leaves. Neither was its enemy, Hyperaspis 

 signata, mostly in the pupal stage, as plentiful. 



July 15th, some of the beetles were placed in a jar together with 

 leaves on which Pulvinaria larvre had set, and the beetles soon began 

 to devour the young scales. 



It being now evident that the Pulvinaria occurred throughout the 

 region between Newark and New Brunswick, it was deemed im- 

 portant to know the extent and amount of infestation. Accordingly, 

 on July 17th, I went by trolley from Newark to New Brunswick. In 

 most of the places through which I passed, namely, Newark, Eliza- 

 beth, Ro&elle, Westfield, Plainfield, Dunellen and Bound Brook, very 

 little or none of the infestation was seen along the trolley line. Going 

 into Elizabeth and coming out a little infestation was observed, and 

 a greater amount occurred on a small group of soft maples between 

 Roselle and Westfield. At certain spots in Elizabeth and Plainfield 

 a rather bad infestation was observed on old trees, but here, as else- 

 where, the infestation was irregular. As the trees were large and the 

 branches high, I could not see how prevalent the CoccineUid beetle 

 was, but I found a fcAV specimens crawling on the trunks. In Bound 



