175 
by all three of the species at once. At this time the larve of Co- 
laspis will be found about half grown, and would unquestionably be 
killed with the vines. Those of Scelodonta, on the other hand, will 
be matured, and many of them would probably complete ‘their 
transformations and emerge as adults, while the Paria, at this sea- 
son, would be found as an adult beetle upon the leaves, probably 
not having yet deposited its eggs. These two latter species would 
consequently not be destroyed, but would be inevitably driven from 
the field in search of food, and plants set out in the ground plowed 
up would be no more subject to attack by them than all the other 
fields of the vicinity. 
In the absence of definite knowledge as to the time of oviposition 
of Colaspis and Paria, it will be impossible to say positively whether 
plants taken up in the spring will be free from the eggs of these 
species. Certainly plants at that season would be free from the eggs 
of Scelodonta, and that root-worm could only be conveyed by care- 
lessness in failing to shake the earth from the roots of the plants 
removed. The probabilities are that the eggs of Paria are not laid 
until rather late in spring, and that consequently spring transplant- 
ing would be a safe practice as far as this species is concerned. 
On the other hand, as has already been shown, there is good rea- 
son to suppose that Colaspis eggs are deposited in autumn, and that, 
consequently, this species might easily appear in the new fields 
alg nitiineub For complete security against infection in the estab- 
lishment of new plantations, the method recommended in last year’s 
report, in my article on the Strawberry Crown-borer, is the only one 
known to me. This method has been applied with conspicuous suc- 
cess by Mr. Endicott, at Villa Ridge, and an outline of his proce- 
dure is worthy of general attention. 
In making a new plantation, he selects, in spring, the newest and 
strongest plants, sets these as usual at a distance from any other 
‘field, leaves them until their runners have taken root, and then digs 
up and destroys those first set. His new field is thus stocked with 
poet plants, which have never been in contact with seriously infested 
stools. 
SUMMARY. 
We are now ready for a statement of the general results of the 
observations and studies on the root-worms here reported. 
We find that the so-called root-worm of the strawberry really 
represents three species of closely allied beetles, all belonging to the 
great family of plant-feeders, Chrysomelide, but to different genera 
and species; Colaspis brunnea, Paria aterrima, and Scelodonta pu- 
bescens. 
For a summary statement of the distinguishing characters of these 
various root-worms, in their different stages of adult, larva and pupa, 
the reader is referred to page 1538. 
The life histories of these insects, as far as known, are curiously 
different in respect to the times and periods of their development. The 
larva of Colaspis appears early in the season, and does its mischief 
chiefly in the months of April and May, the beetles beginning to emerge 
