336 Forty-sixth Report on the State Museum 



appearance, which feed for about a month, and are frequently more 

 destructive than the first brood. The slug is shown in natural size 

 upon the leaf, and in enlargement beside it, in Figure 17. 



The insect is regarded as only two-brooded in Canada and in the 

 Northern United States. Possibly there may be occasionally three 

 broods in New Jersey, but it is not improbable that the supposed third 

 brood may have been belated individuals of the second, as some of these 

 do not develop the winged insect until September and even in October, 

 while others pass the winter in the pupal state. 



Reinedie.'<. — This insect is not a difficult one to destroy. Powdered 

 hellebore has long been a favorite and satisfactory remedy for this and 

 all other of the slimy slugs. It may be distributed over the foliage in 

 powder, or, if more convenient, it may be mixed in water in the pro- 

 portion of one ounce to two gallons of water, and applied with a force- 

 pump. Spraying with Paris green and water would doubtless be equally 

 effective, as the slugs feed upon the parenchyma f z-om the upper side 

 of the leaves. Powdered lime is also excellent for killing the slugs, 

 when thrown by hand or otherwise over the leaves. A few years since, 

 a young pear orchard in Western New York was severely attacked by 

 a species of slug, allied to the E. cerasi, but apparently an uncommon 

 insect, as appeared from examples sent me which I was unable to name. 

 Request was made for additional specimens from which to breed the 

 perfect insect, but answer was returned that the orchard had in the 

 meantime been gone over with air-slaked lime, and no more of the slugs 

 could be obtained. 



Road dust has also been eraploj^ed as a remedy, as almost any fine 

 powder will kill the slugs by adhering to their viscid surface and clos- 

 ing the breathing-pores, unless they should be near one of their molt- 

 ing stages at the time, when the skin would be cast off and the dust 

 inoperative. — {Country Gentleman, for May 19th, 1892.) 



Papilio Cresphontes (Cramer). 

 The Yellow-banded Swallow-tail. 



A number of the larvje of this beautiful butterfly were received from 

 Mr. Wm. Falconer, of Glen Cove, Long Island, on October 18th 

 of this year, with the following notice of their occurrence: " I send you 

 a few larvffi that I found on a bush of Ghoisya ternata — a Mexican 

 shrub that I set out, in summer, and take in, in Avinter. I first noticed 

 them two or three weeks ago. There were a great many of them on 



