THE CANADIAN ENTOMOLOGIST 91 August 30th — 9 Dinocampits issued from cocoon. September 12th — Beetle re-exposed to the parasite that issued from it. November 4th — Second cocoon found. November 10th — Beetle found dead. Dissection gave proof of successive parasitism. November 17th — 9 Dinocampus issued* from second cocoon. These observations show conclusively that this particular parasite does not injure the vital organs of the host in the least. In the great majority of cases, however, the fatty lymph tissues of the host are left in such a depleted condition that the beetle soon dies, and the wound through which the parasite escapes in itself probably would be fatal in most instances. It is only the exceptionally \igorous beetles which recover. The observations also illustrate an adaptation of parasite to host rarely seen in such perfection elsewhere. Many of the parasites of homopterous insects do not kill their hosts until the latter in part at least have fulfilled their reproductive functions, but here we find a condition still more favorable to host and parasite alike, in which the host ultimately is left uninjured and free to reproduce its kind. A NEW GENUS AND SPECIES OF NITIDULINI, WITH DESCRIPTIONS OF OTHER NEW SPECIES OF COLEOPTERA FROM INDIANA AND FLORIDA. BY \V. S. BLATCHLEY, INDIANAPOLIS, INDIANA. Among the Coleoptera collected during the last two winters in Florida are a number of species which I am not able to identif\-from the literature extant. As I was making a trip to Cambridge, Philadelphia and Washington last August to study the types of certain Rhynchophora in the LeConte, Horn, and other Collections, I took some of these Florida species with me, and could find nothing similar to several of them in any of the collections. To Dr. E. A. Schwarz, of Washington, D. C, and Chas. W. Leng, of New York City, I am under obligations for aid in making the com-parisons and for their opinions regarding the status of the species described below. March, 1916
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