Scientific Lectures
Scientific Lectures
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In the third species, C. porcellus, the bluish spots form the centres of the above-mentioned ocelli.
Among the GeometridcB, as already mentioned, the caterpillars are very often brown, and closely resemble bits of stick, the similarity being much increased by the peculiar attitudes they assume. On the other hand, the large brown caterpillars of certain Sphingidce are night feeders, concealing themselves on the ground by day ; and it is remarkable that while species, such as S. con- volvuliy whi...ch feed on low plants, turn brown as they increase in age and size ; others, like the Smerinthi, which frequent trees, and cannot therefore descend to the ground for concealment, remain green throughout life. Omitting these, we find in the table, among the larger species, seventeen which are brown, of which twelve are hairy, and two have extensile caudal fila- ments. The others, though not Geometridce, closely resemble bits of stick, and place themselves in peculiar, and stiff attitudes.
And thus, summing up the caterpillars, both of butter- flies and moths, out of the eighty-eight spiny and hairy species tabulated, only one is green (L.
What to read after Scientific Lectures?
You can find similar books in the "Read Also" column, or choose other free books by Lubbock, John, Sir, 1834-1913 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In the third species, C. porcellus, the bluish spots form the centres of the above-mentioned ocelli.
Among the GeometridcB, as already mentioned, the caterpillars are very often brown, and closely resemble bits of stick, the similarity being much increased by the peculiar attitudes they assume. On the other hand, the large brown caterpillars of certain Sphingidce are night feeders, concealing themselves on the ground by day ; and it is remarkable that while species, such as S. con- volvuliy whi...ch feed on low plants, turn brown as they increase in age and size ; others, like the Smerinthi, which frequent trees, and cannot therefore descend to the ground for concealment, remain green throughout life. Omitting these, we find in the table, among the larger species, seventeen which are brown, of which twelve are hairy, and two have extensile caudal fila- ments. The others, though not Geometridce, closely resemble bits of stick, and place themselves in peculiar, and stiff attitudes.
And thus, summing up the caterpillars, both of butter- flies and moths, out of the eighty-eight spiny and hairy species tabulated, only one is green (L.
What to read after Scientific Lectures?
You can find similar books in the "Read Also" column, or choose other free books by Lubbock, John, Sir, 1834-1913 to read onlineMoreLess
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