The Cane Grubs of Australia. 19 
CETONID Sp. No. 46. 
Stage ITI.—Greatest length at stretch, 24 mm.; width at base of anal 
segment, 6 mm.; length in natural curved position, 11-5 mm.; thickness 
5-5 mm.; width of head, 2 mm.; length to apex of labrum, 1-75 mm. 
, 
Apex of abdomen ventrad with a naked elongate longitudinal path, 
closed cephalad, open caudad, two and a-half times as long as wide, 
bounded by about fourteen short, stout, close sete on either side, the rest 
of the segment with rather dense stoutish sete. Peritremes more closed 
than in Cacachroa decorticata. 
Stage Ii.—Greatest length, 16 mm.; width, 4 mm.; length in natural 
curved position, 8 mm.; thickness, 3-5 mm.; width of head, 1-5 mm.; 
length to apex of labrum, 1-30 mm. 
No. 364. 
Our larve were all in bad condition. For distinguishing charac- 
teristics, see table of larvx. 
Part Ii.—Scientific Data. 
During the past three years the following data have been gathered 
on various phases of the life history and habits of cane beetles. The 
locality unless otherwise stated is Gordonvale (Cairns), Queensland, 
on the Mulgrave River. The data should be considerably enlarged. We 
are indebted to Mr. A. M. Lea, of the South Australian Museum, for his 
kindness in identifying the adults :— 
LEPIDIOTA ALBOHIRTA Waterhouse. 
The description of the stages has been offered for publication 
elsewhere (Contribution No. XXX. from this laboratory). 
THE EGG. 
LrenetH or STAGE, 
Lot Number Deposited, . F Length of Stage— 
Number. of Eggs. 1914, Hatched. Days. 
it 12 | January 20 .- |Hebruary It ~.. 12 
2 47 January 29 .. | February 12 ai 14 
3 36 January 29 .. | February 12 56 14 
4 19 | January 10 .. | January 26% 16 
5 18 | February 5 .. | February 21 aie 16 
6 1} January 25 .- | February 11* .. 17 
7 2 | February 3 .. | February 15 vc 12 
8 1 | January 18 ..|Hebruary 4* .. 17 
Average... ae 14.75 
* Approximate date only. 
DURATION OF THE PERIOD OF OVIPOSITION. 
In confinement eggs have been obtained on the following dates :— 
December 15, 22, 29; all of January and February; March 1. The 
