Part ili.“j Beeson : BeeUole Borer of Tealz. 
39 
The pupal skin remains protruding from the hole in the bark, until 
destroyed by birds, lizards, ants, etc. 
The period during which the pupal skin may escape destruction has 
not been definitely ascertained, but from evidence of discoloration and 
general weathering it is considered that one to two weeks is not uncom¬ 
mon. On two occasions pupal skins charred by a fire that occurred 
some ten days previously have been noticed. 
IMAGrINAL HABITS. 
Development of the Wings. 
The moth on emerging from the pupal skin walks a short distance up 
the trunk of the tree until a position is found which affords good foothold, 
and protection from wind. At the end of some 25 minutes the wings 
are fully developed, but the moth as a rule remains motionless in the 
same spot until evening, or climbs up the trunk into the shelter of the 
crown without attempting to fly. The writer was fortunately able to 
observe the emergence of beehole borers under natural conditions in 
teak jungle; the following records are of typical instances. 
Wing Development. 
1. Hsipaw, Northern Shan States: 2nd May 7914 : zero hour , 7-8 p.m . 
0 minutes.—The moth, a female, emerged, and walked up the 
bole to the right of the exit hole for about 3 feet; 
abdominal segments fully extended ; wings no longer 
than the pupal wing-sheaths. 
5 „ Abdominal segments considerably contracted ; anterior 
pair of wings frds expanded, with the distal |th 
curled. 
8 „ Abdominal segments contracted So that no white 
intersegmental skin is visible; wings extending 
almost to the end of the abdomen, Spirally curled 
at tips. 
9 „ Wings opened and held vertically like a butterfly’s 
wings ; thorax and head raised and abdomen curved 
concavely so as to give free space to the wings. 
11 „ Scarcely perceptible undulations pass down the wings, 
accompanied by increase in length and uncoiling of 
the spirally twisted tips. 
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