1900 SUPPLEMENT—RECENT INTRODUCTIONS, &c. 677 
Sphingide—continued. 
while the Moths themselyes may be occasionally taken 
at rest in the daytime, or, in the case of Smerinthus, 
while on the wing, as it is slow in flight as compared 
with the Elephant Hawk-Moth. 
Fic. 687. Poprar Hawk-Moru. 
As stated in Vol. III., the Poplar Hawk-Moth (Sme- 
rinthus Populi) lives on Poplar, Laurustinus, and Laurel, 
as well as upon Willow and Aspen. It is the commonest 
of British Hawk-Moths, the most sombre as to colouring, 
Sphingide—continued. 
“light.” The eggs, which number considerably over 100, 
are deposited in May or June, and take about ten days to 
hatch. The perfect insect is on the wing from May till 
July, and the pupa may be found from September till 
June. The larva when full-fed 
assumes the pupal state just below 
the soil, but without making any 
cocoon. Althongh the colour giyen 
in Vol. III. applies to some speci- 
mens, yet it is by no means constant, 
these insects showing considerable 
variation alike as regards colour and 
size. This Hawk-Moth, it is worthy 
of note, will pair not only with 
S. ocellatus but also with Sphinx 
ligustri, and hybrids of both are not 
uncommon. 
S. tilie (Lime Hawk-Moth) is a 
handsome insect, and although its 
popular name points to the Lime as 
the food-plant, yet the larva will 
feed upon Hazel, Oak, Ash, Birch, 
Elm, Alder, and Sycamore. The 
‘eggs are laid towards the end of 
June. The perfect insect is on the wing from May till 
as late as August in exceptional cases, and the pupal 
planeta from October till June. See Figs. 689 
an } 
Fig. 688. Larva AND PuPA OF PoPpLAR HAWK-MoTH. 
and one of the weakest upon the wing. The perfect 
insect is shown at Fig. 687, and the larva and pupa are 
shown at Fig. 688. This Moth may often be taken at 
+ 
aa ¥, = > . . 
. or fase .G x \ 
+ 
> 2S Ta . 
Sphinx ligustri (Privet Hawk-Moth) is a fairly common 
species, and also a handsome one to boot. Though 
Privet is the food-plant, yet the larva will lay under 
