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 



