Part III.] Beeson : Beehole Borer of Teah. 
41 
about an 
12 minutes.—Wings flat and even. 
14 „ Wings extending beyond abdomen b} 1 
inch, separate at the tips, apparently fully developed. 
Antennae are held ap pressed to the sides of the 
thorax. 
17 „ Moth moved a short distance to get into a breeze. 
25 „ Wings opening and gradually diverging ; body slowly 
straightening. 
27 „ Wings very widely divergent; head dropped to level 
of femora. 
28 „ Wings slowly lowered (after IS minutes) but held in 
arrow-head pose and not suddenly closed as in $ . 
29 „ Wings tightly closed, accompanied by a few muscular 
tremors. 
30-40 „ No perceptible change ; removed. 
There is considerable variation in the length of time occupied by the 
period of uphold ; those individuals observed to emerge at higher tem¬ 
peratures developed more quickly than those at lower temperatures (or 
in rain) e.g. 
Individual 
Number. 
Sex. 
Number of 
minutes to up¬ 
lift of wings. 
1 
Period of up¬ 
hold of wings. 
Weather conditions. 
1 
? 
9 
24 
Warm, evening. 
2 
3 
10 
32£ 
Rain, cold afternoon. 
3 
6 
10 
19 
Hot sun, afternoon. 
The moth usually purges twice, once in the pupal skin on leaving 
and once Some hours later. 
Time of Emergence. 
The moth normally emerges during the day, usually near midday, 
in sunshine and in rain. The writer has found several newly-emerged 
individuals resting on the bark near the exit hole, with the wings scarcely 
developed and the pupal skin soft, and freshly wet with the meconium ; 
such individuals are usually found during late afternoon and evening. 
As Stebbing says [1905, p. 12] “ The moth probably issues at night and 
Hies and pairs at night ” it is desirable to record actually observed 
emergences. 
[ 269 ] 
