OF WASHINGTON. 95 dent, Wm. H. Ashmead ; Vice-Presidents, Theodore Gill and C. L. Marlatt; Recording Secretary, L.O.Howard; Corre sponding Secretary, F. H. Chittenden ; Treasurer, E. A. Schwarz ; additional members of the Executive Committee, George Marx, B. E. Fernow, and C. V. Riley. The delivery of the annual address of the outgoing President, Prof. C. V. Riley, was postponed for one month. The first paper of the evening was by Mr. C. L. Marlatt, en titled " Revision of the genus Pontania, Costa, with Descriptions of New Species." The relationship of this genus, which is a subdivision of the old genus Nematus, was explained, and its characters pointed out. A list of seventeen species which will belong to it in the North American fauna was given, and the prominent characters which may be used in the classification of these species and in their differentiation were explained. The genus includes small species of the old genus Nematus of gall-making habits, so far as known, and include the well-known species salicis-pomum and pisum making the common leaf-galls of the willow. Seven of the species are new. In answer to a question by Prof. Riley, Mr. Marlatt pointed out the salient characters separating the genus Pontania from Euura, the species of the latter genus, in gall-making habit, being closely allied to the former. Mr. Chittenden presented, by title, the following paper : ON THE HABITS OF SOME LONGICORNS. By F. H. CHITTENDEN. The notes which follow are based on the writer's personal ex perience, and the dates of rearings given are, for the most part, as in nature. In very many instances the material from which the species herein mentioned were reared was gathered but a few days before the transformation of the insects and kept in an un-heated room. In referring to published records the observer's name is men tioned for authority, as most of these records are to be found in Dr. A. S. Packard's report on forest insects (Fifth Report U. S. Ent. Comm.) and that of Mr. A. D. Hopkins (Bull. 33, W. Va. Agl. Expt. St.). Other records are given in articles by Dr. C. V. Riley and Dr. J. L. LeConte in the third volume of the American Entomologist.