Feb., '04] ENTOMOLOGICAL NEWS. 59 



May 3ist being Sunday I did not visit the laboratory, but 

 on the morning of June ist I found twelve or fifteen more 

 crickets in the cylinder. Most of these were resting on the 

 cheese cloth over the top of the cylinder. 



Between June ist and 8th about a half dozen more crickets 

 emerged, but none were found in the cylinder after the latter 

 date. Apparently the last specimen emerged on the night of 

 the jth. Thus the time of hatching had extended over a 

 period of eleven or twelve days with me, but I estimated that 

 probably one-half the young had emerged before the tree 

 trunk had been brought into the laboratory. 



A few of the young crickets died, probably more from lack 

 of food than from any other cause, but on June gth I had 

 about twenty-three in good condition, most of them in shell 

 vials, usually but one in a vial. On that day I noted the first 

 case of cannibalism. An empty shell vial had been placed in 

 a glass cylinder in which a few of the crickets were inclosed, 

 and two of them had fallen into it. They had not been there 

 long, but one the larger had killed and partly devoured the 

 other. One or two other cases of cannibalism were noticed 

 later, but only when there was a scarcity of food. 



As was to be expected, feeding was done principally at night 

 or in the evening, and they kept comparatively quiet during 

 the day, but if very hungry and they were given fresh food 

 they would usually feed at any time. After a night's feasting 

 the slender-bodied active insects would be transformed into 

 sluggish creatures with greatly distended abdomens. 



As they grew older they apparently became accustomed to 

 being handled, and exhibited but little signs of fear when 

 being changed from vial to vial or when having their food 

 supply replenished. Occasionally one would jump, and the 

 distance to which it would leap and the suddenness of the 

 movement would cause me to wonder that they did not all 

 escape from captivity at some time or other. 



They were always very cleanly in their habits, and it was 

 quite amusing to see them cleaning their long antennae by 

 slowly drawing them through their mouth parts or to see them 

 reach their heads back under their bodies in their efforts to 



