-Part V. ] Beeson : Larvae and Life Histories of Prionine Beetles. 16 
segments 1-4, transverse on segments 5 and 6 and arched backwards on 
segment 7. 
Segments 7, 8 and part of 9 with strong pleural folds. 
8th abdominal segment , transversely striate, not so long as 7 th and less 
than half as long as 9th. 
Anal (9th) segment , rather broader than long, hemispherically round¬ 
ed at apex, irregularly striate, coarsely punctate. 
Anus situate on a circular boss, divided by a Y-shaped suture, the 
segments tangentially striate. 
Length, 65—115 mm. = 2 —4J inches. 
Largest larva; width of thorax 26 mm., width of abdomen 20 mm., 
length of anal segment J 7 mm. 
4. The Pupa. 
[ See Plate II, Fig. 4.] 
General description* General colour creamy white. 
Technical description. Described from 2 pupae, ex Bipterocarpus 
turbinatuSj Andamans, 20—IV-1918, D. P. O. coll. RED. 411. 
Read glabrous; dorsal surface of prothoracic and abdominal seg¬ 
ments with numerous minute erect spines, mainly grouped in transverse 
zones; no carinate projections. 
Appendages and ventral surface glabrous. Somites enclosing the anal 
and genital apertures, fleshy and terminating in corneous tubercles. 
Lengthy 69 mm.; breadth of thorax, 23 mm. 
Notes on the Life History. 
The material sent by the Divisional Forest Officer, Andamans, is a 
portion of beam sawn from the heart wood of a tree of Bipterocarpus 
turbinatus after the attack of Bemphan hopei was almost completed. 
The galleries of the borer are very closely crowded and, in comparison 
with those of most Indian heartwood borers, of enormous size; they run 
transversely through the heartwood and are much deeper than wide. 
The lumen of the gallery measures from 2J to 4J inches by | to 1 inch, 
i.e.y large enough to admit at once all the fingers of one's hand; they 
are loosely packed with coarse fibres. 
The timber was received and caged on the 18th May 1918. Three 
male beetles emerged on 6th August, 6th October and 29th November 
1918 respectively, and one female on the 2nd February 1919. 
Two immature female beetles were collected with larvae and pupae 
on the 10th April 1918 at the time the material was despatched. 
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