[Solar-OpenOffice] f these theories, any more than is the fr

Sun Aug 30 12:23:18 CEST 2009

Ntacles which can suddenly be thrown out from the neck, by the
caterpillars of all the true swallow-tailed butterflies. It is among the
groups that possess some of these varied kinds of protection in a high
degree, that we find the greatest amount of conspicuous colour, or at
least the most complete absence of protective imitation. The stinging
Hymenoptera, wasps, bees, and hornets, are, as a rule, very showy and
brilliant insects, and there is not a single instance recorded in which
any one of them is coloured so as to resemble a vegetable or inanimate
substance. The Chrysididae, or golden wasps, which do not sting, possess
as a substitute the power of rolling themselves up into a ball, which is
almost as hard and polished as if really made of metal,--and they are
all adorned with the most gorgeous colours. The whole order Hemiptera
(comprising the bugs) emit a powerful odour, and they present a very
large proportion of gay-coloured and conspicuous insects. The lady-birds
(Coccinellidae) and their allies the Eumorphidae, are often
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