THE GIPSTJ MOTH. 119 
The caterpillars often crawl upon vehicles standing in an 
infested spot and by this means, also, are carried from one 
place to another."* 
The writer has no doubt that many of the infesta- 
tions of gipsy moth in New Hampshire have been intro- 
duced by automobiles, as they are practically the only 
vehicles, other than railroad cars, coming directly from the 
badly infested region of Massachusetts, and the infestations 
are found along the main roads and not near the railroads. 
Indeed, one case has come to our attention in which the 
owner of an automobile coming from Maiden, Mass., 
removed a half dozen caterpillars from his machine upon 
arriving at Greenland, N. H., which were believed to be, 
and doubtless were, those of the gipsy moth. 
"The egg clusters of the gipsy moth may also be trans- 
ported on any of the numerous objects on which they are 
laid. Freight cars that have stood near the infested foliage 
for a period long enough for the laying of gipsy moth eggs 
upon them may even transport the pest." It is surprising, 
however, that as yet no instances have become known in 
which freight cars have carried the eggs, so that a colony 
of the moth has arisen at any distance from the badly 
infested regions, though certainly abundant opportunity 
must have arisen in past years. 
From a careful study of the localities in New Hampshire 
infested with but a single egg mass and sufficiently distant 
from any small colony so that it seems improbable that the 
caterpillars might have been transported from any local in- 
festation, it seems probable that the pest is being distributed 
and is spreading in some manner which has either not been 
observed or to which sufficient importance has not been 
attached. For instance, it seems strange that if the cat- 
erpillars are being transported mainly by vehicles that the 
egg masses are found fully as often on trees one or two hun- 
♦From Bulletin l, Office of Superintendent, for Suppressinp the Gipsy and 
Brown-Tail Moths, of Massachusetts, by A. H. Kirklaixl, fn.in which are all 
other quotations, unless otherwise indicated, and to which we are indebted 
for much of the present article not directly quoted. 
