60 ENTOMOLOGICAL NEWS. [Feb., '04 



remove, by means of their mouth, any particles of dirt that 

 might have become attached thereto. 



On June 12th I left Newark for a month's vacation at my 

 home in northern New York, and took my entire colony of 

 twenty odd crickets along with me. They were placed singly 

 in shell vials holding about six drams, tightly corked, and a 

 number of aphides, with a little vegetation, were enclosed 

 with each. 



Up to this time they had been fed principally on aphides 

 from cherry and peach trees, but with a change in section of 

 country a change in food was necessary, and during their 

 month's staj- in northern New York their food consisted almost 

 entirely of the currant aphis. 



I soon found that the shell vials were too small for my cap- 

 tives, as some lost their lives by becoming fastened by their 

 long antennae to the sides of the vials, apparently rendered 

 sticky by the moisture from the vegetation enclosed, and the 

 honey-dew from the aphides. Accordingly the survivors were 

 transferred to jelly tumblers turned bottom upwards over 

 pieces of paper ; usually but one was placed in a jar, as I 

 feared more cases of cannibalism. I was not able to watch 

 them very closely, so could not get any very definite molts, but 

 the first sign of wings appeared on an individual in which one 

 of the moults occurred on July 4th. The wings appeared at 

 that time as little pads in which state they remained for a con- 

 siderable length of time. The skin cast by this individual at 

 this time was only partially eaten, I think. 



On July 8th I left home for Newark, and at that time had 

 but seven living crickets. The plant-lice on the currant bushes 

 having at this time practically disappeared, I found it necessary 

 to look for other food for them on their trip back to their 

 native State, and found this in the shape of some large plant- 

 lice on rose bushes. 



These seemed to "fill the bill," and all of the crickets 

 reached Newark safely. There the food question was a greater 

 problem than at Potsdam, for it was next to impossible to find 

 plant lice of any kind. I succeeded in finding a few colonies 

 on young pear trees, but these were soon gone, and I was 



