The Cane Grubs of Australia. 49 
PROPORTION OF THE SExzEs. 
Of our total number of reared beetles, 14 were females and 31 males. 
Hasirs, &c. 
Adults of this species not infrequently fly to lights. They can be 
found in large numbers feeding on the young branches of the cultivated 
tree Poinciana. A native food-plant is a species of Philanthus, adults 
having been seen on the younger stems of this tree growing on the banks 
of the Mulgrave River, Gordony ale. A specimen was found chewing 
a decayed piece of cane on the ground, March 12, 1913, Gordonvale. 
Foop or LARVA. 
On 28th July, 1914, at Gordonvale, digging in a rubbish-heap, 
clay loam near river, produced several Stage id larvee, one of which 
had its head buried in the dead branch of a tree, the mouth-parts full 
of sawdust. The soil surrounding was infiltrated with bits of dead 
wood; living vegetation scanty. The larve habitually feed upon decom- 
posed vegetable matter in the soil. 
CALLOODES GREYANUS White. No. 655. 
THE EGG. 
LENGTH OF STAGES. 
The following table shows the length of the stage; the eggs were 
deposited by a single female: 
| | 
Tot Number. ines of Date Deposited. | Date Hatched. ie ene nee 
1 56 5 February 16-29 .. | By March 6 14-18 
2 30 18 February 20-21 .. | By March 6-8 13-16 
3 56 2 March 26-27 .. | By April 12-14 ae 16-19 
Average aie: 16 days. 
THE LARVA. 
DEVELOPMENT. 
The stages have been found on the following dates at Gordonvale — 
Stage I. | Stage IT. Stage ITT. 
March 6, 8, 12 (reared) April 13 June 26 
April 14, 30 (reared) | July 4 
August 15, 17 
September 5 
Our data are not sufficient to show how long the life-cycle lasts. 
HABITAT, 
A_ species inhabiting the almost pure sand of the river-bed at 
Gordonvale, in which situation it is rather plentiful. It has not been 
found in any other sites. Reared larve, when placed in sifted loamy or 
organic soils, died within a month, 
D - 
