. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . never m our clubbed. The wings insect is at rest are folded on the back or close to the sides, oblique, roof-like, or spread out flat, but never habitually ver- tical. In general it may be said that the butterflies are on the wing during the day, and fly dur- ing the night only in rare in- stances ; moths, on the other hand, are night flyers, as a rule, though there are many exceptions, and a number of species occur commonly during the day. The butterflies separate read
. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . never m our clubbed. The wings insect is at rest are folded on the back or close to the sides, oblique, roof-like, or spread out flat, but never habitually ver- tical. In general it may be said that the butterflies are on the wing during the day, and fly dur- ing the night only in rare in- stances ; moths, on the other hand, are night flyers, as a rule, though there are many exceptions, and a number of species occur commonly during the day. The butterflies separate readily into groups based on the char- acter of the feet and the situation of the antennae. What may be called for convenience the " true butterflies " are distinguished by having the feelers set close together on the top of the head, the latter being proportionately rather narrow. The antennal 16 Antennas in Lepidoptera. — a, clubbed antenna of butterfly ; b, c, variations in form of club; d, prismatic and fusiform ; e, ciliated ; f, bristle- tufted ; g, doubly bipectinated.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1906
