98 INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
trees might be headed down to the ground, so as to destroy the grubs 
boring in them, and also to promote a more vigorous growth. An ex- 
cellent preventive remedy is to collect these beetles early in September 
when engaged in eating the flowers of the golden rod; children could 
perform this labor. 
AFFECTING THE LEAVES. : 
2. THE LOCUST DEPRESSARIA. 
Depressaria robiniella Packard. 
Order LEPIDOPTERA ; family TINEID®. 
Occasionally late in June defoliating the branches, a small green larva with a thick 
body, black head, and transforming late in July to a light brick-red moth, spotted 
irregularly with yellow. 
The following account of this destructive moth is taken from our | 
‘‘ Guide to the Study of Insects.” The moths of the Tineid genus De- 
pressaria comprise rather large species, in which the fore wings are 
unusually hard and oblong. The abdomen is flattened above, with pro- 
jecting scales at the sides. The larve are extremely active and feed on 
a variety of substances; some in rolled-up leaves of composite plants, 
some in the leaves and others in the umbels of the umbelliferous plants. 
Many of the worms descend from the plant on the slightest agitation, 
so that considerable caution is necessary in attempts to collect them. 
The full-fed larvee descend to the ground and change to pupe among 
the fallen leaves. The perfect insects have the peculiarity of sliding 
about when laid on their backs. 
During the summer of 1868 a large locust tree overhanging our gar- 
den in Salem, Mass., was attacked by the present species to such an 
extent that some of the branches were nearly stripped of their leaves. 
This moth we described under the name of Depressaria robiniella 
(Guide to Study of Insects, Pl. 8, fig. 14). The larva is thick-bodied, 
with a black head, and is green, the cervical shield being green. It de- 
vours the leaves, drawing them together by threads, and it also eats the 
flower buds. It was most abundant in the last week of June. It turned 
to a chrysalis July 8, and in about two weeks the moth appeared. 
The moth.—The head, palpi, and fore wings are light brick-red, spotted irregularly 
with yellow, and the antenni are slate-brown. The fore wings are a little darker in 
the middle, especially towards the inner edge. There is a submarginal darker brown 
band near the outer edge, which does not reach the costa, and on the outer edge is a row 
of minute black dots. The hind wihgs and abdomen are of a pale slate-gray, and of 
the same color beneath, while the legs are of a very pale straw-yellow. It differs 
from most of the species of the genus in having the apex of the fore wings less rounded 
than usual, and in this and other respects it is allied to the European D. laterella. 
3. THE LOCUST LEAF-MINER. 
Parectopa robiniella (Fitch). 
Order LEPIDOPTERA ; family TINEID®. 
Mining the leaf in July, making a blotch on the upper surface of the leaf, with a 
number of lateral galleries running out from it, on each side, a flattened pale green 
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