48 
THE SUBSTITUTE. 
which is always much darker than 
the ground colour. (Vol. I., pp. 
119, 120); 
Gortyna. 
Of all ihe ApamidcE, this is the 
most curious in its manners, and 
which in that respect most re- 
sembles Nunayria. Like them, 
the larva? are of pale colour, or 
with the spots and plates of the 
neck and anal segment horny and 
shining. They feed also on the 
pith of the plants, in the interior 
of which they pass their lives, and 
they contrive in the .same way an 
egress for the perfect insect. The 
perfect insects, like the Nonagrue, 
indicate their secluded life by the 
length of the abdomen and its ten- 
dency to turn greasy, but instead 
of being dull-coloured and with 
insignificant markings, they are 
on the contrary the prettiest in- 
sects in this family. The fore 
wings are generally of a warm 
lone, with the lines well marked. 
(Vol. I., p. 120). 
Axylia. 
The genus Axylin, represented 
in Europe by a single species, has 
hitherto been placed sometimes 
with sometimes with Agro- 
tis. From Xylophasia, to which 
it is most nearly allied, it differs 
especially by the abdomen not 
being crested. The larva of pii- 
tris (the only species of which the 
transformations are known) also 
differs widely from the larvre of 
Xylophasia in the form and dispo- 
sition of the markings, since it has 
some resemblance with the larva 
of Mameslra Persicarict. The 
perfect insects are all readily re- 
cognised by their oblong folded 
wings, which give the insect an 
elongate form. There is a great 
resemblance in their markings ; 
they are partly disposed length- 
wise, as in Xylophasia ; one es- 
pecially notices two dark terminal 
streaks which run towards the re- 
niform stigma, always the most 
distinct. The anterior portion of 
the collar forms a pale half-moon, 
spotted with brown, as in Pygara 
hucephala. The hind wings are 
well developed, and the abdomen 
is conical, and so little covered 
with hairs, that itappears perfectly 
smooth and shining. Hence -4ar//- 
lia cannot be confounded with any 
other genus of this family, 'i he 
species are all of small size: ours 
is the largest I know ; the others 
all come from Africa. (Vol. I. 
p. i:>3). 
Xow ready, price ,‘3.s’. iid., 
rjHdE WOULD of INSECTS ; 
JL A Guidk to its Wonders. 
By J. W. Douglas, 
Secretary to the Entomological Society 
of Lonilon. 
“A charming volume, redolent 
of the fields and garden, and dis- 
coursing most agreeably, as well 
as learnedly — corde el mami — as 
its motto says. Mr. Douglas is not 
only an excellent entomologist, 
but a man of refined literary 
tastes also, and sees into the heart 
and poetry of his science. He is 
the very man to win proselytes ; 
for let the reader he where he 
may, Mr. Douglas will open for 
him a world of wruulers.” — Xorth- 
ampton Mercury. 
John Van \'oorst, Paternoster 
How. 
I’rinted and published by EnwAltl) Nsw- 
MAN, I’riiilcr, of No 0, Devoiodnru 
.Street, nisbopsgnic Wiilioul, London, 
in the county of Middlesex.— Saturday, 
November IS, ISSO. 
