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The Voyage of the Beagle by Charles Darwin
page 56 of 731 (07%)
by a symmetrical mesh-work; so that the net, instead of being,
as is generally the case, circular, consisted of a wedge-shaped
segment. All the webs were similarly constructed.

[1] Venda, the Portuguese name for an inn.

[2] Annales des Sciences Naturelles for 1833.

[3] I have described and named these species in the Annals of
Nat. Hist., vol. xiv. p. 241.

[4] I am greatly indebted to Mr. Waterhouse for his kindness
in naming for me this and many other insects, and giving me
much valuable assistance.

[5] Kirby's Entomology, vol. ii. p. 317.

[6] Mr. Doubleday has lately described (before the Entomological
Society, March 3rd, 1845) a peculiar structure in the wings
of this butterfly, which seems to be the means of its making
its noise. He says, "It is remarkable for having a sort of
drum at the base of the fore wings, between the costal nervure
and the subcostal. These two nervures, moreover, have a peculiar
screw-like diaphragm or vessel in the interior." I find in
Langsdorff's travels (in the years 1803-7, p. 74) it is said,
that in the island of St. Catherine's on the coast of Brazil,
a butterfly called Februa Hoffmanseggi, makes a noise, when
flying away, like a rattle.

[7] I may mention, as a common instance of one day's (June 23rd)
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