126 
thasma. 
men, so that fewer segments appear on that part 
than above. The concavity of this organ is covered 
by a terminal scale and bifid process, constituting 
the. tip of the abdomen on the upper part. On 
raising this valve, an ovum, nearly of the size of 
a pea, but of a more lengthened form, was dis- 
covered lying ill the cavity beneath; and on in- 
specting farther into the cavity of the abdomen, a 
great many more ova, exactly similar, were found, 
to the number of five or six-and-twenty, some still 
remaining in the upper part: these eggs are of a 
slightly oblong shape, but llattened at one end: 
they are of a brown colour, and marked all over 
with numerous impressed jioints; and have on 
one side a mark or double waved line, so disposed 
as to represent a kind of cross, as if carved on the 
surface: the flattened end is surrounded by a small 
rim or ledge, and seems to be the part which opens 
at the exclusion of the larva, since it readily sepa- 
rates from the rest. On immersing some of these 
ova in warm w'ater, and opening them, the in- 
cluded yolk, of a deep yellow colour, and of the 
appearance of a transparent gum, was discovered ; 
and this, when burned, afforded the usual smell of 
animal substances, but in some it was accompanied 
by a slight degree of fragrance. It is perhaps 
needless to observe that these mature ova clearly 
prove the insect to be in its complete or ultimate 
state, and not in that of a larva.” 
Some insects of this genus, like the preceding, 
are remarkable for the extreme, and even decep- 
tive resemblance which their upper wings bear to 
