175 
all three of the species at once. At this time the larvae of Co- 
pis will be found about half grown, and would unquestionably be 
led with the vines. Those of Scelodonta, on the other hand, will 
matured, and many of them would probably complete their 
nsformations and emerge as adults, while the Paria, at this sea- 
1 , would be found as an adult beetle upon the leaves, probably 
5 having yet deposited its eggs. These two latter species would 
lsequently not be destroyed, but would be inevitably driven from 
) field in search of food, and plants set out in the ground plowed 
would be no more subject to attack by them than all the other 
ds of the vicinity. 
n the absence of definite knowledge as to the time of oviposition 
Colaspis and Paria, it will be impossible to say positively whether 
nts taken up in the spring will be free from the eggs of these 
jcies. Certainly plants at that season would be free from the eggs 
Scelodonta, and that root-worm could only be conveyed by care¬ 
less in failing to shake the earth from the roots of the plants 
noved. The probabilities are that the eggs of Paria are not laid 
il rather late in spring, and that consequently spring transplant- 
would be a safe practice as far as this species is concerned. 
)n the other hand, as has already been shown, there is good rea- 
l to suppose that Colaspis eggs are deposited in autumn, and that[ 
rsequently, this species might easily appear in the new fields 
ablished. For complete security against infection in the estab- 
lment of new plantations, the method recommended in last year’s 
ort, in my article on the Strawberry Crown-borer, is the only one 
own to me. This method has been applied with conspicuous suc- 
s by Mr. Endicott, at Villa Ridge, and an outline of his proce- 
•e is worthy of general attention. 
n making a new plantation, he selects, in spring, the newest and 
mgest plants, sets these as usual at a distance from any other 
d, leaves them until their runners have taken root, and then digs 
and destroys those first set. His new field is thus stocked with 
;h plants, which have never been in contact with seriously infested 
pis. 
ii 
SUMMARY. 
Ve are now ready for a statement of the general results of the 
ervations and studies on the root-worms here reported. 
Ve find that the so-called root-worm of the strawberry really 
resents three species of closely allied beetles, all belonging to the 
at family of plant-feeders, Chrysomelidse, but to different genera 
[.species; Colaspis brunnea, Paria aterrima, and Scelodonta pu- 
ens. 
! 'or a summary statement of the distinguishing characters of these 
ious root-worms, in their different stages of adult, larva and pupa, 
| reader is referred to page 153. 
he life histories of these insects, as far as known, are curiously 
Brent in respect to the times and periods of their development. The 
a of Colaspis appears early in the season, and does its mischief 
, iffy in the months of April and May, the beetles beginning to emerge 
k 
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