The Cane Grubs of Australia. 4] 
From one of the small larva, an adult of the above species was reared 
November 11th. These results seem to show that this spec th 
adult of No. 587. pecies is the 
On January 1st, 1913, adults were found at 9 a.m. feeding on the 
young leaves of Eucalyptus corymbosa (?) at Gordonyale. 
HAPLONYCHA Sp. 
Two adults dug up in clay soil, jungle, Babinda, N. Fenn 
11th, 1914. , N.Q., February 
DASYGNATHUS AUSTRALIS DEJEANI Macleay. 
THE EGG. 
None obtained. 
THE LARVA. 
LENGTH OF THE STAGES. 
Be At Gordonvale, the three stages have been obtained on the following 
ates :— 
Stage I. Stage IT. Stage TIT. 
March 11 April 12, 29 | March 28 
May 18, 20 | April 9, 20, a2 3 3f 
June 9 | May 2, 3. Se dlaks 1s) “Ut, 26, 31 
July 17, 30 June 2, 7, 18 
August 7, 24 | July 6, 16, 30 
September 9 | August 10 
Also, Stage III. has been taken at Babinda, N.Q., February 11; 
doubtful specimens of Stage I. at Goondi (Innisfail), N.Q., July 24; 
Stage III. at Childers, 8.Q., July 1, and also at Murwillumbah, Tweed 
River, N.S.W., May 20, 30. From this data we must conclude that 
this is another of the species whose life-cycle continues over one year. 
DISTRIBUTION IN REGARD TO SOILS. 
Our data show a proportionately large percentage of larve from 
black or clay loams as compared with red voleanic soils, but owing to 
their scantiness they cannot be allotted much importance. From all 
collections where the quality of the soil was recorded, the larve are 
divided as follows: — 
Red Voleanic. Clay or Dark Loam. 
23 Ale 84 
Also 57,400 yards of plough furrows, red volegmic, yielded 9 larvee ; 
38,590 yards plough furrows, clay or black loam, 52 2 larve. 
In individual collections, numbers of larve were obtained only 
from the black or clay loam, as the following table serves to show :— 
Number of Grubs. 
Collection Source of | ——t Average 
Number. Collection. | ere ae Per Yard. 
| Red Volcanic | peel | 
es | Ee 
1 ae 1,500 Me | 12 (clay) “008 
2 seen 900 xe 8 (clay) -008 
3 rie 1,680 ae | 16 (black) 00952 
4 i 660 2 i 0030 
| | 
2 Se ee 
