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ITecannot hope that I have conveyed much information in these notes to 
those who have gone over the same ground, but I am at least sure that I have 
recounted some of the experiences of every biological student of insect life, and 
can sympathise in his disappointments and appreciate the satisfaction of his 
successes. 
o4 
THIRD DAY’S SESSION. 
The Club met on Friday at 8.30 am. Dr. Weed presented a short paper om 
the habits of Livus concavus. 
As reported in the bulletin of the Ohio Experimental Station, Mr. Alwood 
had found this insect injuring the stems of rhubarb. During the past summer 
he had bred it from all parts of the stem of the common curled dock. 
Prof. Alwood stated that he had observed the larvee of Gortyna nitela eating 
those of Livus. 
Dr. Weed read a paper upon the habits of Psephenuws Leconte. 
Prof. Webster and Mr. Fletcher also spoke on the habits of this beetle. 
Prof. Hargitt read a note upon a large foliaceous gall which destroyed the 
tips of the stems of various species of Solidago at Bloomington, Indiana. In 
many instances as many as ninety-nine per cent. of the flower stems had been 
destroyed. : 
Prof. Hargitt read a note upon the Canker Worm. He said: “ My attention 
was drawn to an orchard near Oxford, Ohio, which, for three or four years, had 
been seriously affected by this pest. In May, 1890, I went to examine the 
orchard and found it thoroughly over-run by the larve, many of the trees being 
actually dead, and several.others in a very weak condition. The orchard, viewed 
at a distance, had the appearance of having been burned, the leaves being brown 
and dead. The trees were most attacked upon the outer rows, particularly 
those adjoining a wood. I recommended spraying with one of the arsenites, but 
it was too late for the present season. I observed several small birds in the 
orchard actually engaged in feeding upon the larvee, amongst them the cedar bird, 
blue bird, summer warbler, chipping sparrow and field sparrow.” 
Prof, Hargitt also read a note upon Cermatia forceps. He had found that 
this Myriapod had become abundant in houses and the college building at Oxford, 
Ohio, during the past two or three years. He had experienced the same difficulty 
in keeping the insects alive in captivity, as was mentioned by Dr. Lintner in his. 
4th Report. He had succeeded in keeping them for several days and inducing 
them to take prey by keeping them in dark quarters in a tiu canister during the 
day.. When so confined they had fed freely upon house-flies, and other insects 
supplied them. 
Prof. Webster spoke of the predaceous habits of C. forceps, and its special 
fondness for the Croton-bug (Helobia germanica). 
Mr. Fletcher had observed the insect when visiting Mr. Howard at Washing- 
ton, D.C., who had described to him its remarkable habit of capturing the 
Croton-bug by springing over it and thus encaging it beneath its many curved 
_legs. He was of the opinion that those who had failed to keep this insect in 
captivity had done so trom omitting to supply a sufficiency of moisture, and 
thought that Mr. Hargitt’s success in the instance mentioned, where the insect. 
was put in a tin can, was more due to this cause than to the darkness. J/yria- 
pods are general found in damp, dark places. 
