](i8 jouKNAi. OF THE [October, 



The nymphae of the 2nd form would remain in the nest. At 

 the time of the swarming of the imagines from the 1st form, 

 Lespes states that he never saw a winged imago from the 

 nymphae of the 2nd form, but expects there would be, swarm- 

 ing tak ng place in August or September. The last was merely 

 coniecture, and Miiller says, according to his observations, was 

 wrong. He found the wing-cases of the nymphae of the 2nd 

 form to be only rudimentary, and the imagines from them being 

 wingless remained in the old nest. 



The specimens of the nymph ee of the 2nd form, the imago 

 and gravid queens, sent up by Mr. Beaumont, only have rudi- 

 mentary wing-cases, and could not swarm. Three stages of 

 larvae and nymphae have so far been found by Mr. Beaumont 

 of the 2nd form, and he expects to find others. Interesting as 

 this matter is scientifically, it is equally so practically. 



Ample provision seems to be made for the dissemination of 

 the inmates of a colony to form new ones, and at the same time 

 fully providing for the perpetuation of the old one, making it 

 very difficult to destroy a well-established colony. 



Mr. Beaumont finds many of the nests destroyed by taking 

 out the queen-cell and the queen or queens, were rebiult in a few 

 months, containing other queens. It will be remembered that 

 in my previous paper I stated, when the galleries leading to 

 and from a nest were destroyed, they were soon rebuilt. The 

 latter will be more readily understood after seeing a lantern 

 view of a nest. 



The habits of each of the three genera of Termites, found 

 upon the Isthmus, are so different that remedies, which may be 

 effectual against one genus, may not be so against another, and 

 in order to carry out practical measures, checking their destruc- 

 tiveness, it has become necessary to designate each genus so 

 that ordinary workmen can distinguish them. 



In my paper of last year, I stated that Eutermes, was made a 

 sub-genus of TertJtes, owing to a peculiar venation of the wing. 

 This means qf classification included species having soldiers 

 with mandibles, and species having soldiers with beaks in the 

 same genus. On the Isthmus the venation of the wings is not 

 constant, nor can winged insects be found at all seasons of the 

 year. And authorities do not agree in identification. In my 

 first paper, for the time being, I called all those species with 



