A NEW GENUS AND SPECIES OF NITIDULINI, WITH DESCRIPTIONS OF OTHER NEW SPECIES OF COLEOPTERA FROM INDIANA AND FLORIDA

August 30th41 Dinocanzpus issued from cocoon. September 12th-Beetle're-expcsed to the parasite that issuecl froin it. November 4th-Second cocoon found. November l0tll-Beetle found dead. Eissection ga\-c proof of successive parasitism. November 17th9 Di?zocanzpus issued from second cocoon. These observations show conclusively that this particular parasite does not iiljure tile 1-ital organs of the host in the least. In the great majority of cases, hoxx-ever, the fatty lymph tissues oi the host are left in sucll a depletecl condition that the beetle soon dies, and the wound through ~v l~ ich t e parasite escapes ill itself probaLly xvould be fata! in most instances. I t is only the exceptionally vigorous beetles \~h ich recover. The ohservatio~ls also illustrate an adaptation of parasite to host rarely see~l ill such perfection elsewhere. Many of the parasites of homopterous insects do not kill their hosts ui~t i l the latter in part a t least ha\-e fulfilled their reproductive functions, but here \I-e find a condition still more favorable to host and parasite alike, in which the hosr ultimately is left uninjured and free to reproduce its kind.