8 Notes on Habits and Metamorphosis of Lepidiota frenchi, Black. 
Concluding from appearances that they had been laid some little 
time, a similar experiment was conducted on 22nd December, with three 
females in separate cages. These were examined on the 27th without 
success, but next day (just a week after copulation) ova were taken 
from each cage, the numbers being—26, 32, and 39. No additional eggs 
were deposited, although the beetles lived about a week longer. 
The depth at which oviposition takes place appears to vary from 3 
to 5 inches, according to the percentage of moisture present; but, unlike 
the eggs of albohirta—which are massed together in one chamber—those 
of frenchi are deposited separately, each egg being isolated in a small 
cavity measuring about 5 mm. in diameter with compacted sides, the 
entire batch occupying a space of not more than a couple of cubic inches. 
Size and Appearance-—The egg immediately after deposition is. 
2.83 2-19 mm. but quickly increases in size, and twenty-four hours 
later has swollen to 3-66 & 2-83 mm. When about to hatch out, it is. 
4.50 < 3-50 mm., 12 placed end to end in a straight line measuring 
54 mm. (24 inches). Although at first obtusely ovate (Figs. 1 and 2), 
it gradually in the course of swelling assumes an almost spherical form. 
The chorion is tough and coriaceous, silvery-white, with granulated 
surface not unlike erystallised sugar in appearance (Fig. 3). 
About a fortnight elapses between the acts of oviposition and 
emergence of the larve. 
THE LARVA. 
Stage I11,—In general structure the fully-grown grub of this species: 
resembles that of Lepidiota albohirta, Water., which has already been 
minutely described by Girault in ‘‘Societas Entomologica,’’ Germany, 
1913, a translated reprint of which has been issued in the form of 
Contribution No. 21 of our Bureau (Ent. Lab. Sugar Exp. Stat. Bunda- 
berg). Girault and Dodd subsequently published the following briet 
description of the grub of Lepidiota frenchi, Black. (Stage III.), based 
on the former author’s full description of albohirta alluded to above : 
‘Greatest length at stretch, 41 mm.; greatest width (at base of anal 
segment), 10 mm.; length in natural curved position, 18 mm.; thickness, 
Smm.; greatest width of head, 6 mm.; length to apex of labrum, 5-5 mm. 
Very similar to albohirta, but will differ as follows:—Stigmata much 
larger in comparison to the peritremes, the widest portion of the peri- 
tremes not half as wide as the stigmata (nearly as wide in albohirta), the 
peritremes distinctly open, the opening slit wider than long (peritremes 
scarcely open in albohirta, the opening slit very narrow, many times 
longer than wide) ; apex of abdomen ventrad with a naked longitudinal 
path, with convexed margins, delimited by about four rows of rather 
short, stout sete, these overlapping; the scattered sete being all round. 
this path.’’* 
‘Bull. No, 2, Div. Ent. Qld. Bureau Sug. Expt. Stations, 1915. 
