AT the meeting of the Entomological Club of the A.A. A.S. in Washington last autumn, Professor John B. Smith, it will be remembered, gave some interesting observations on this beetle, made at New Brunswick, N.J. As the somewhat astonishing result of his observations, he stated that there was but one annual generation, and that the beetles actually went into hibernating quarters early in August. Professor Smith's statements were so emphatic, and evidently based on such careful observations, that they could not very well be gainsaid, but as they conflicted with my observations on the species in the latitude of Washington, for which I have recorded two generations, and exceptionally a third, I was anxious the present season to go over the ground again, still more carefully than in the past, and, by rearing in confinement the first generation of larva from the first eggs hatched, to thus verify, in a manner which could leave no possible doubt, the facts which I had previously recorded. In this brief note, I desire simply to state that at the present time (June 30) I have eggs laid by the second brood of beetles, i.e., the beetles obtained from larvae which were feeding during the month of May and early part of June, thus proving, in the most positive manner, that in the latitude of Washington there are at least two broods, and that the second brood of larvae will be feeding during July. The following from the Appendix to the second edition of Bulletin 6, Division of Entomology, Department of Agriculture, October, 1891, will bear repeating in this connection:-v One statement in the life-history of the Imported ElmLeaf Beetle, as given in the preceding pages, may have to be corrected in the light of the observations of the past six years, and that is in reference to the number of annual geinerations. Like other leaf-beetles, this insect occupies an extended time in oviposition. The eggs appear to develop slowly in the ovaries, and a single female will deposit a number of the characteristic little yellow batches. This fact, taken in connection with the retardation of certain individuals of a generation, results in an inextricable confusion of broods. Adult beetles, pupae, larvae in all stages, and eggs, will be found upon trees at the same time, in Washington, during the months of June, July, August, and even later. From this fact it is almost impossible to estimate the number of annual generations without the most careful breedingcage experiments. There is no evidence that the facts upon record are based upon such careful experiments. Glover, in the annual report of this department for 1867, page 62, says: ' After becoming pupae, in a few days the skin of the back splits open and the perfect insect crawls forth, furnished with wings, by means of which it is enabled to fly to other trees and deposit its eggs, thus spreading the nuisance to every elm in the neighborhood; or it may ascend some tree and lay the eggs for a second generation, which destroys the second crop of leaves, frequently so enfeebling or exhausting the tree that it is unable to recover and eventually perishes.' Again, in the Annual Report for 1870, page 73, he says: 'The perfect beetles appear in a few days and immediately fly up into the tree to lay their eggs for a second generation, which frequently destroys every leaf on the tree.'