14 
northern of those in Michigan, as well as one at Amherst, Mass. The 
coastal law which brings about the intermingling of northern and south- 
ern forms will probably justify the eastern Massachusetts occurrences. 
The river-valley law will justify the occurrence at Amherst, and, in 
fact, sufficient stress has not been placed upon the occurrence of many 
southern forms well up the valley of the Connecticut Eiver. It is 
admitted by Dr. Merriam that his old line across the southern portion 
of the lower peninsula of Michigan may not be accurately drawn, and, 
in fact, he believes that it should extend up the coast of Lake Michigan 
at least sufficiently high to include Little Point Sable. The occurrences 
near Cayuga Lake are so close to the northwestern loop of the upper 
austral in New York as to have been practically expected. The val- 
ley of the lake lies low, with high hills on the side, and its outlet is in a 
rather low-lying region. It is still, therefore, in the writer's opinion, 
safe to say that the insect will not prove dangerous in true transition 
regions. 
An interesting case was brought to the writer's attention a year ago 
by Mr. C. Hinze, of Payette, Idaho, who sent apple twigs which, accord- 
ing to his statement, in November were fairly covered with the scale, 
and which after a cold snap, with a temj)erature of 8° below zero, were 
examined with the result that most of the scales were found to have 
dropped off, while those which were left were many of them dried up. 
Examination at this office showed a few specimens still living. 
It begins now to be evident — and we did not suspect it before — that 
the insect may not prove as injurious in lower austral regions as in 
upper-austral territory, and it may be that this is due to the parasitic 
fungus SpluvrostiTbe coccophila in these more southern States. Certain 
facts seem to point plainly to this conditiou. The scale certaiuly did no 
great damage in the vicinity of New Orleans, where it existed for cer- 
tainly four and probably five years. As we have already pointed out, 
nothing has been heard from many cases of diseased stock sent out to 
various points in the Gulf States from New Orleans in 1891. Professor 
Eolfs finds that the fungus disease is doing good work in Florida, and 
on two occasions we have received reports from portions of Georgia to 
the effect that scales upon badly infested trees were nearly all dead. 
NATURAL ENEMIES. 
In no case since the publication of Bulletin No. 3 have any of the 
insect enemies of the scale been reported to have done any especial 
good. Aspidiotipliagus citrinus has been reared from scales from the 
South, and Aphelinus fuscipemiis from scales from the North, while the 
little ladybird, Pentilia misella, has been fouud in a number of localities. 
Attracted by the California reports of the efficacy of certain of the 
Coccinellids imported by Mr. Koebele from Australia, the New Jersey 
State Horticultural Society early in 1896 memorialized the State legis- 
lature and asked for an appropriation of $1,000 for the purpose of im- 
