The Cane Grubs of Australia. 21 
DEVELOPMENT, 
At Gordonvale the stages of the larve have been found on the 
following dates :— 
Stage I. Stage II. Stage ITT. 
February 15 
| March 3595 105, 11, 13, 16, 
i SLS5 205) 235 311 
April 3, 6, 8, 10, 17, 18, 30 
May 1, 7, 11, 15 
January 26 
February 4, 19, 23 
March 2, 17, 20 
April 10, 16 
March 10, 11, 13, 16, 18, 19, 
20, 23, 31 
JNyoradl, 335 (8, 9); WML, Weel hs Iles. 
30 
Mayle oslo lea 22. 20; 
25, 26, 28, 29, 31 
June 45 os 2 245 255 Zip 
29, 30 
wl Ws Pay EMO WI Me: ai 
| Pei alls Twas 
| August 
| September 
October 21, 24 
At Finchhatton, Mackay*, Stage I. was found on October 17, January 
28 at Babinda. At Mossman, Stages I]. and III. were found on March 20 
and 23, 1912. Thus at Gordonvale, Stage I. is found from January to 
April, II. from February to May, and III. from March to Detober. 
* This represents a distinct species as found later. 
DISTRIBUTION IN UPLAND AND LownAND CANE. 
Number of Grubs. 
Source of Collection. 
Lowland. Upland. 
38 stools of cane, dark loam Sie Sic ae 57 a 
27 stools of cane, red volcanic .. 6 0 259 Ss 
160 stools of cane, red voleanic .. oe ae ie 1,150 
Average per stool— 
Dark loam ve sie “8 ac ae 1-5 : 
Volcanic o¢ 50 Sic at Se 9-5 
Average 4-8 
Volcanic 5c ote He Sc Se ae a 
24,153 yds. of plough furrows, mixed soil ae 1,045 
4,620 yds. of plough furrows, mixed soil ae 29 or 
17,534 yds. of plough furrows, mixed soils S6 721 
Average per yard of furrow .. a "037 O41 
DISTRIBUTION IN REGARD TO HABITAT. 
This species occurs (and has been found) as a larva in the following 
situations:—In organic matter in the sand of (dry) river-bed (rarely) ; 
in canefields of voleanic, sandy loam, and clay-loam soils (commonly) ; 
in natural forest or bush, in various soils up to 1,000 feet; roots of 
erasses (common); under grass on sidewalks of town (common); and 
in fields; under the roots of corn and grass; under logs in an orange 
