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LORYCAMPA REGALIS.
behind, yellow. Abdomen reddish-brown, each segment with a yellow band. The female often measures half a foot between the tips of the wings, the male somewhat less.
The caterpillar when full grown is about five inches and a half in length; of a yellowish-green colour, inclining in some places to blue, each segment armed with a few black setose spines. On the three segments immediately behind the head, the spines are of very great length, curved and granular, the upper half black, the under reddish-yellow.