. Bulletin. a slight cocoon of silkintermixed with hair from their own bodies, and within these cocoonsthey transform to pupae. Fig. 9, d and e, where they remain till thefollowing June or July when the moths emerge. There are said tobe two broods in a year in the South but only one in the North. Ihave seen no satisfactory evidence that there is more than onebrood in Massachusetts. The moths are snow white with the first two joints of the fore legsyellow, and the outer joints of all the legs broadly ringed with black 12 The wings expand from an inch and an eighth to an inch and three-eighths.
. Bulletin. a slight cocoon of silkintermixed with hair from their own bodies, and within these cocoonsthey transform to pupae. Fig. 9, d and e, where they remain till thefollowing June or July when the moths emerge. There are said tobe two broods in a year in the South but only one in the North. Ihave seen no satisfactory evidence that there is more than onebrood in Massachusetts. The moths are snow white with the first two joints of the fore legsyellow, and the outer joints of all the legs broadly ringed with black 12 The wings expand from an inch and an eighth to an inch and three-eighths. Fig. 9, /, represents an unusually large moth of this moths in this State, as a rule, have pure white fore wings, butsometimes, especially further south, they are more or less dotted crspotted with dark brown or black as shown in Fig. 10, atoj. I havenever taken a spotted example in Massachusetts and only one inMaine. Possibly the normal northern foi-m is pure white and thesouthern form Fig. 10. Fall Web-Worm. a-i. Wings of a series of moths, showing the variations from the pure white form to oneprofusely dotted with black and brown.—After Riley. The Fall Web-worm has numerous enemies among the birds andpredacious and parasitic insects, but even with all these checks, theyare numerous enough to do a vast amount of injury, and theirunsightly webs are far too numerous on our fruit and ornamentaltrees. A series of experiments was made on this insect with paris greenat the Insectary the past season, but with negative results. Parisgreen in water was showered upon a branch having a web on it, butthe mixture failed to penetrate the web and wet the enclosed leaves,and only those that ate the leaves outside of the web were killed. Ido not see how this method can be really serviceable except whenthey feed outside of their web. I am of the opinion that the mostpractical, and at the same time the cheapest way to destroy theseinsects, is to crush them in the webs wh
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