MAPLE INSECTS. The different species of maple are greatly subject, to the attacks of in jurious insects. certain species., such as the silver leaved maple, being more susceptible than others. Several insects bore in the trunks of these trees. The sugar-maple borer (tt'(or•obin.s speeiosus). a black, long-horned beetle which has yellow bands, destroys the sugar maple in the northern parts of the United States; the horntail borer (see HORN TAIL) and the larva of a clear-winged moth (..Egeria averni) also bore the trunks, the latter being especially abundant in the 31ississippi Val ley. A Imprestid beetle. Dit,rea divaricata, in the larval stage bores in red maple stumps, although undoubtedly originally an enemy of the beech. The principal bark-borer of the sugar maple in the Northern United States is rortlialus pa ?zeta issim us, one of the Scolytithr. The striped maple-worm (larva of rubicunda) is a widespread enemy of these trees. frequently feeding upon the leaves in such great, numbers as entirely to defoliate long rows of shade trees. The tent-eaterpillar of the forest (Jlalaeosoma disstria) is a decided enemy of all species of maples, and has greatly damaged the sugar maples in New York and New England, The tus sock-nn h's caterpillar ( Grgaia leurostigma) and the fall webworm yphantria enacts) quently defoliate the shade trees of the larger cities. The eottony maple scale (Pulrinaria in
numer«bilis) is occasionally so numerous as to cause serious injury. and another seale-insect (Psemlocro-cuts aeer•is). 1.4)1,aldy introduced from Europe. is very abundant an the shade trees of certain cities. The so-called gloomy scale (aspi (lious to nebrirosits) ha': a southern range, and is fregpiently the unnoth-ed cause of the death of shade trees. Several species of plant-lice. notably l'cm ph inns are ri f olii, damage the leaves of early slimmer. and a gall mite (Phyi opt to! qunilripusI disfigures the lea yes with its massed reddish galls. Consult Packard, Fifth Report of the ['tilted Status Entomological Commission (Washington, 1S90).