Vol. XXI] ENTOMOLOGICAL NEWS. 22J 



onic development of about one and one-third months. After 

 hatching had occurred, borings are usually to be noticed at the 

 mouth of the egg cavity. 



The eggs are deposited into the branch and the latter, then 

 girdled, not the other way round as has been stated in the litera- 

 ture ; at least this was true in the cases of two direct observa- 

 tions, one of which has already been stated. This, a female, 

 was found feeding at the apical or top end of a branch, and 

 crawling slowly back and forth between the top and bottom 

 ends of it, on October 15 in the afternoon. Egg cavities con- 

 taining eggs were then present. She continued these indolent 

 movements through the morning of the i6th, but at I P. M. 

 that day, she began to girdle the branch, working continuously 

 throughout the afternoon and evening until at least up to n 

 P. M., when the observation was discontinued ; the day had 

 been windy and cloudy. By the following morning (i7th), a 

 half of the circuit had been completed ; from 6 A. M. to I P. 

 M. of the 1 7th, the female was either at rest, motionless or else 

 feeding at the apex of the branch, eating the bark ; it began 

 again on the girdle at nearly the same hour as on the previous 

 day (i P. M.), working continuously nearly up to midnight, by 

 which time the girdle was almost completed ; the day had been 

 cloudy with a drizzling rain. At 7 A. M., October i8th, she 

 was found resting at the upper end of the branch ; the girdle 

 was nearly complete. At 12.30 P. M. that day, she renewed 

 her operations, working to windward, head downward, clutch- 

 ing the branch which was then leaning somewhat from the ac- 

 tion of the wind. At I P. M., she was working in a driving 

 rain; about an hour afterwards the branch fell over, blown by 

 the wind, and the female abandoned it. Plainly, in this case, 

 girdling followed oviposition. During the time of observation, 

 the female worked during definite periods, the last half of the 

 day and the first half of the night. 



The two beetles observed were very slow and deliberate in 

 their actions. They would spend hours alternately feeding, 

 resting or crawling slowly up and down the length of fh" 

 branch upon which they were at work. Their locomotion, dur- 



