Descriptions of two new Irish Crustacea." By Robert Templeton, Esq., R.A. " Description of a new Hemipterous Insect from the Atlantic Ocean." A letter from Mr. Engleheart, M.E.S., was also read, announcing the capture of three specimens of Mancipium Daplidice at Dover during the month of August last, one of which was taken by Mr. Leplastrier, jun., in the Castle-meadow on the 18th, and the others by Mr. Engleheart on the 20th in an adjoining field. About twenty specimens of Colias Hyale were

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... o taken in the same neighbourhood between the 17th and 21st of August, not more than one third of which were of a yellow colour. A letter was received from M. Drege of Hamburgh. containing a list of insects for sale from South Africa. Mr. Ingpen communicated a portion of a pine-apple plant greatly infested by a very minute species of Coccus, with which the plant was in some cases completely covered.