76 
ing the season of 1896 a number of colonies both of Rhizobius and 
Seymnus. In all, several hundred specimens were brought into the 
State and distributed in the more southern counties, where the 
climate is mildest and conditions generally more favorable than in 
the north, and in each instance where there was an abundance of food 
for them. The colonies were scattered so that anything happening 
in one section might not affect the entire experiment. The results 
were absolute failures. Nothing more was seen of either species at 
any subsequent period. 
At the same time I entered into correspondence with Professor 
Matsumura, of Japan. This resulted in the introduction into New 
Jersey of a small series of Chilocorus similis Rossi, the Asiatic lady 
beetle of which we have heard so much during the past year or two. 
Some eighty specimens were contained in the sending and of these 
nineteen were alive and in apparently good condition. I placed them 
out myself under favorable circumstances on May 24, in a locality 
where food was abundant and where conditions might be supposed to 
be of the best. For a few days afterwards the insects were seen, some 
of them were noted as feeding, and there is no doubt that they lived 
for a short period. ‘There is no doubt, either, that they died off, for 
nothing was seen of them in that same orchard after midsummer, or 
at any time since. Nothing more was done in this matter until after 
Mr. Marlatt had succeeded in securing specimens from China and 
Japan and had actually established them in Washington, D. C. — 
During the latter part of 1902 I secured, through the courtesy of 
the Department of Agriculture, sufficient specimens of Chilocorus 
similis to colonize on two infested trees in my own garden, where they 
were under constant observation. These insects multiplied to some 
extent during the year, hibernated very fairly, and had only one 
drawback—they became pretty well parasitized before the season’ was 
over. In 1903, while the parasites were very active, I sueceeded in 
getting increase enough to send out 15 colonies, and with what was 
ered from Washington some 400 individuals were distributed in 
different parts of southern New Jersey. It will be noted that the rate 
of increase is not especially great. Out of perhaps 30 ladybirds 
received, only about 360 were actually obtained after a year under 
the most favorable circumstances. 
The winter of 1903-4 was an unusually hard one, not that the 
temperature was lower than usual, because, as a matter of fact. it did 
not reach the lowest point of the year before; but the cold was con- 
tinuous and there were several unusually heavy late frosts. Whether 
on this account or for some other reason which I have not been able 
to discover, the colonies in all parts of the State were completely 
exterminated. I have not seen anywhere even a single example of 
this species. This report is not based altogether upon statements 
